{"body":"\n\n

\n\n\n\n\nUnders\u00f8gelse af ventiler| Ventiler Unders\u00f8gelse|kundelig elektrisk aktiveret kugle\n<link rel='\"alternate\"' hreflang='\"es\"' href="%5C%22https:%5C/%5C/es.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"fr\"' href="%5C%22https:%5C/%5C/fr.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"de\"' href="%5C%22https:%5C/%5C/de.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"pt\"' href="%5C%22https:%5C/%5C/pt.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"ru\"' href="%5C%22https:%5C/%5C/ru.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"nl\"' href="%5C%22https:%5C/%5C/nl.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"en\"' href="%5C%22https:%5C/%5C/www.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"ca\"' href="%5C%22https:%5C/%5C/ca.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"cs\"' href="%5C%22https:%5C/%5C/cs.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"hr\"' href="%5C%22https:%5C/%5C/hr.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"lv\"' href="%5C%22https:%5C/%5C/lv.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"lt\"' href="%5C%22https:%5C/%5C/lt.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"ar\"' href="%5C%22https:%5C/%5C/ar.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"ja\"' href="%5C%22https:%5C/%5C/ja.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"ko\"' href="%5C%22https:%5C/%5C/ko.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"it\"' href="%5C%22https:%5C/%5C/it.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"ms\"' href="%5C%22https:%5C/%5C/ms.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"th\"' href="%5C%22https:%5C/%5C/th.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"ro\"' href="%5C%22https:%5C/%5C/ro.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"mt\"' href="%5C%22https:%5C/%5C/mt.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"no\"' href="%5C%22https:%5C/%5C/no.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"sv\"' href="%5C%22https:%5C/%5C/sv.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"sk\"' href="%5C%22https:%5C/%5C/sk.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"sl\"' href="%5C%22https:%5C/%5C/sl.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"tr\"' href="%5C%22https:%5C/%5C/tr.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"hi\"' href="%5C%22https:%5C/%5C/hi.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"vi\"' href="%5C%22https:%5C/%5C/vi.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"et\"' href="%5C%22https:%5C/%5C/et.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"sw\"' href="%5C%22https:%5C/%5C/sw.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"ur\"' href="%5C%22https:%5C/%5C/ur.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"uk\"' href="%5C%22https:%5C/%5C/uk.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"iw\"' href="%5C%22https:%5C/%5C/iw.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"el\"' href="%5C%22https:%5C/%5C/el.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"hu\"' href="%5C%22https:%5C/%5C/hu.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"bg\"' href="%5C%22https:%5C/%5C/bg.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"af\"' href="%5C%22https:%5C/%5C/af.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"bs\"' href="%5C%22https:%5C/%5C/bs.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"fa\"' href="%5C%22https:%5C/%5C/fa.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"da\"' href="%5C%22https:%5C/%5C/da.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"fi\"' href="%5C%22https:%5C/%5C/fi.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"id\"' href="%5C%22https:%5C/%5C/id.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<link rel='\"alternate\"' hreflang='\"pl\"' href="%5C%22https:%5C/%5C/pl.covna-china.com%5C/articles%5C/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc%5C%22">\n<meta name='\"keywords\"' content='\"Ventiler' unders>\n<meta name='\"description\"' content='\"Unders\u00f8gelse' af ventiler unders elektrisk aktiveret kugle kugleventil>\n<meta property='\"og:type\"' content='\"website\"'>\n<meta property='\"og:title\"' content='\"Elektrisk' ventil pneumatisk magnetventil aktuator-covna>\n<meta property='\"og:site_name\"' content='\"Elektrisk' ventil pneumatisk magnetventil aktuator-covna>\n<meta property='\"og:description\"' content='\"COVNA-ventilprodukter' d magnetventiler pneumatiske ventiler elektriske portventiler globusventiler kontraventiler kugleventiler butterflyventiler osv.>\n<meta property='\"og:url\"' content='\"https:\/\/www.covna-china.com\/articles\/valves-study.html?curl%5B84%5D=3&curl%5Bdebug%5D=1&curl%5B20011%5D=myfunc\"'>\n<meta property='\"og:image\"' content='\"\/\/v4-upload.goalsites.com\/728\/image_1637048804_logo.png\"'>\n<meta property='\"og:name\"' content='\"Ventiler' unders>\n<link rel='\"shortcut' icon href="%5C%22%5C/%5C/v4-upload.goalsites.com%5C/728%5C/image_1630287627_bitbug_favicon-(2).ico%5C%22">\n<meta name='\"author\"' content='\"DigoodCMS\"'>\n<link rel='\"stylesheet\"' type='\"text\/css\"' href="%5C%22https:%5C/%5C/cdn.staticfile.org%5C/animate.css%5C/3.7.2%5C/animate.min.css%5C%22">\n<link rel='\"stylesheet\"' href="%5C%22https:%5C/%5C/cdn.staticfile.org%5C/twitter-bootstrap%5C/4.5.0%5C/css%5C/bootstrap.min.css%5C%22">\n<link rel='\"stylesheet\"' href="%5C%22https:%5C/%5C/cdn.staticfile.org%5C/flag-icon-css%5C/3.5.0%5C/css%5C/flag-icon.min.css%5C%22">\n<link rel='\"stylesheet\"' href="%5C%22https:%5C/%5C/cdn.staticfile.org%5C/font-awesome%5C/5.14.0%5C/css%5C/all.min.css%5C%22">\n<link rel='\"stylesheet\"' href="%5C%22https:%5C/%5C/cdn.staticfile.org%5C/Swiper%5C/6.0.4%5C/swiper-bundle.css%5C%22">\n<link rel='\"stylesheet\"' href="%5C%22https:%5C/%5C/cdn.staticfile.org%5C/fancybox%5C/3.5.7%5C/jquery.fancybox.min.css%5C%22">\n<link rel='\"stylesheet\"' type='\"text\/css\"' href="%5C%22%5C/%5C/v4-assets.goalsites.com%5C/linkairu%5C/covna%5C/assets%5C/css%5C/style2.css%5C%22">\n<!--[if lt IE 9]>\n <script src=\"https:\/\/cdn.staticfile.org\/html5shiv\/3.7.3\/html5shiv.min.js\"><\/script>\n <script src=\"https:\/\/cdn.staticfile.org\/respond.js\/1.4.2\/respond.min.js\"><\/script>\n <![endif]--><script src="%5C%22https:%5C/%5C/cdn.staticfile.org%5C/jquery%5C/3.2.1%5C/jquery.min.js%5C%22"><\/script><style>\n * {\n word-break: break-word\n }\n\n body,\n html {\n font-family: var(--fontFamily)\n }\n\n table {\n border-collapse: collapse\n }\n\n table tr td {\n border: 1px solid #ddd\n }\n\n table tr:nth-child(odd) {\n background-color: #fff\n }\n\n table tr:nth-child(even) {\n background-color: #f9f9f9\n }\n\n input::-webkit-inner-spin-button {\n -webkit-appearance: none\n }\n\n input[type=number] {\n -moz-appearance: textfield\n }\n\n img {\n width: auto;\n height: auto\n }\n\n .img-res img {\n width: auto;\n height: auto !important;\n max-width: 100% !important\n }\n\n .sub_item_img {\n width: 80px;\n height: 80px;\n overflow: hidden;\n display: inline-block;\n vertical-align: middle\n }\n\n .breadcrumb_nav_img {\n height: 300px\n }\n\n .breadcrumb_nav_box .fa.fa-home {\n color: #666\n }\n\n .breadcrumb_nav_box a {\n color: var(--main-theme-color);\n text-decoration: none;\n font-weight: 600\n }\n\n .breadcrumb_nav_box .breadcrumb_nav_position {\n text-transform: none\n }\n\n .breadcrumb_nav_box span {\n text-transform: capitalize\n }\n\n .breadcrumb_nav_wrap {\n padding: 13px 0;\n background-color: #ececec\n }\n\n .breadcrumb_nav_list {\n margin: 0;\n padding: 0;\n display: flex;\n flex-wrap: wrap\n }\n\n .breadcrumb_nav_list li {\n margin: 0;\n padding: 0;\n list-style: none;\n margin-right: 10px\n }\n\n .breadcrumb_nav_list li a {\n text-transform: capitalize\n }\n\n .breadcrumb_nav_list li a:hover {\n color: var(--main-theme-color)\n }\n\n .breadcrumb_nav_list li i {\n margin-right: 4px\n }\n\n .breadcrumb_h1_box {\n background-color: #e5e5e5;\n text-align: center;\n height: 100%;\n width: 100%\n }\n\n .breadcrumb_h1_box h1 {\n font-size: 36px;\n font-family: Arial;\n font-weight: 700;\n color: #fff;\n width: 100%\n }\n\n .language-select .dropdown-menu {\n min-width: 170px;\n height: 600px;\n overflow: auto\n }\n\n .language-select i {\n vertical-align: middle\n }\n\n .has_box .sub_box .sub_item span {\n display: inline-block;\n max-width: 60%;\n vertical-align: middle\n }\n\n [lang=ca] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=de] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=el] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=es] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=et] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=fr] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=it] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=ms] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=pl] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=pt] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=ro] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=sk] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=sv] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 290px\n }\n\n [lang=ca] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=de] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=el] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=es] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=et] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=fr] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=it] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=ms] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=pl] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=pt] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=ro] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=sk] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=sv] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=bg] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=ru] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 330px\n }\n\n [lang=bg] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=ru] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=ru] .sub_item_img {\n width: 78px;\n height: 78px\n }\n\n [lang=ru] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 13px\n }\n\n [lang=cs] .sub_item_img {\n width: 76px;\n height: 76px\n }\n\n [lang=bg] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a,\n [lang=cs] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 14px\n }\n\n [lang=lv] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 260px\n }\n\n [lang=lv] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=lt] .main-nav nav .navbar-nav>.nav-item,\n [lang=vi] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 12px;\n margin-right: 12px\n }\n\n [dir=rtl] .topbar ul {\n text-align: right\n }\n\n [dir=rtl] .top-contact-area ul li i {\n margin-left: 4px;\n margin-right: 0\n }\n\n [dir=rtl] .language-select i {\n margin-left: 4px;\n margin-right: 0\n }\n\n [dir=rtl] .main-nav nav .navbar-nav {\n margin-left: 0;\n margin-right: auto\n }\n\n [dir=rtl] .searchbox {\n padding: 18px 16px 18px 0\n }\n\n [lang=ko] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 14px\n }\n\n [lang=uk] .main-nav nav .navbar-nav .nav-item .dropdown-menu,\n [lang=vi] .main-nav nav .navbar-nav .nav-item .dropdown-menu {\n max-width: 310px\n }\n\n [lang=uk] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box,\n [lang=vi] .main-nav nav .navbar-nav .nav-item .dropdown-menu.sub_box {\n max-width: 100%\n }\n\n [lang=hu] .main-nav nav .navbar-nav>.nav-item,\n [lang=iw] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 20px;\n margin-right: 20px\n }\n\n [lang=el] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 10px;\n margin-right: 10px\n }\n\n [lang=fi] .main-nav nav .navbar-nav>.nav-item {\n margin-left: 16px;\n margin-right: 16px\n }\n\n [lang=fi] .main-nav nav .navbar-nav .nav-item.has_box .sub_box .sub_item a {\n font-size: 15px\n }\n\n [lang=pl] .features .welcome_desc p {\n font-size: 24px\n }\n\n @media only screen and (max-width:1199px) {\n .topbar {\n border-bottom: none\n }\n }\n\n @media only screen and (max-width:767px) {\n .language-select .dropdown-menu {\n left: 0;\n right: auto;\n height: 70vh\n }\n\n .newsletter-content .default-section-heading h3 {\n font-size: 28px;\n line-height: 32px;\n padding-bottom: 18px\n }\n }\n <\/style>\n<script async src=\"https:\/\/www.googletagmanager.com\/gtag\/js?id=G-5WHCGWBZF2\"><\/script><script defer>\n function gtag() {\n dataLayer.push(arguments)\n }\n window.dataLayer = window.dataLayer || [], gtag(\"js\", new Date), gtag(\"config\", \"G-5WHCGWBZF2\"), gtag(\"config\", \"AW-10818223058\")\n <\/script><script defer>\n function gtag_report_conversion_1(n) {\n return gtag(\"event\", \"conversion\", {\n send_to: \"AW-10818223058\/VD_JCK_UqIcDENL3w6Yo\",\n event_callback: function() {\n void 0 !== n && (window.location = n)\n }\n }), !1\n }\n <\/script>\n<\/head>\n<body>\n <div class=\"topbar inside_pages_site\">\n <div class=\"w1200\">\n <div class=\"topbar-content\">\n <div class=\"row align-items-center\">\n <div class=\"col-xl-9 col-md-6 col-sm-12 col-12\">\n <div class=\"top-contact-area\">\n <ul>\n<li> <i class=\"fas fa-phone-alt\"><\/i> <span>Telefon:<\/span> <a href=\"tel:8613556641138\">+86-1355-6641138<\/a> <\/li>\n <li> <i class=\"fa fa-envelope\"><\/i> <span>E-mail:<\/span> <a href=\"mailto:inquiry@covna-china.com\">inquiry@covna-china.com<\/a> <\/li>\n <\/ul>\n<\/div>\n <\/div>\n <div class=\"col-xl-3 col-md-6 col-sm-12 col-12\">\n <div class=\"topbar-right-area\">\n <div class=\"language-select\">\n <div class=\"dropdown\">\n <div class=\"header_lang_btn\"> <i id=\"lang_icon\" class=\"fas fa-globe\"><\/i> <span id=\"lang_text\" style=\"position:relative;top:2px\">Sprog<\/span> <i class=\"fa fa-caret-down xiala\"><\/i> <\/div>\n <ul class=\"dropdown-menu\" aria-labelledby=\"dLabel\">\n<li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/es.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-es\"><\/i> Espa\u00f1ol <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/fr.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-fr\"><\/i> Fran\u00e7ais <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/de.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-de\"><\/i> Deutsch <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/pt.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-pt\"><\/i> Portugu\u00eas <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/ru.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-ru\"><\/i> P\u0443\u0441\u0441\u043a\u0438\u0439 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/nl.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-nl\"><\/i> Nederlands <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/da.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-gb\"><\/i> English <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/ca.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-ad\"><\/i> Catal\u00e0 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/cs.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-cz\"><\/i> \u010de\u0161tina <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/hr.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-hr\"><\/i> Hrvatski <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/lv.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-lv\"><\/i> Latvij\u0101 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/lt.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-lt\"><\/i> Lietuvos <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/ar.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-sa\"><\/i> \u0627\u0644\u0644\u063a\u0629 \u0627\u0644\u0639\u0631\u0628\u064a\u0629 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/ja.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-jp\"><\/i> \u65e5\u672c\u8a9e <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/ko.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-kr\"><\/i> \ud55c\uad6d\uc5b4 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/it.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-it\"><\/i> Italiano <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/ms.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-my\"><\/i> Melayu <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/th.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-th\"><\/i> \u0e20\u0e32\u0e29\u0e32\u0e44\u0e17\u0e22 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/ro.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-ro\"><\/i> Rom\u00e2n\u0103 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/mt.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-mt\"><\/i> Malti <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/no.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-no\"><\/i> Norsk <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/sv.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-se\"><\/i> Svenska <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/sk.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-sk\"><\/i> slovensk\u00fd <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/sl.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-si\"><\/i> Sloven\u0161\u010dina <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/tr.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-tr\"><\/i> T\u00fcrk <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/hi.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-in\"><\/i> \u0939\u093f\u0902\u0926\u0940 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/vi.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-vn\"><\/i> Ti\u1ebfng Vi\u1ec7t <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/et.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-ee\"><\/i> Eesti <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/sw.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-tz\"><\/i> Kiswahili <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/ur.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-pk\"><\/i> \u0627\u0631\u062f\u0648 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/uk.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-ua\"><\/i> \u0423\u043a\u0440\u0430\u0457\u043d\u0441\u044c\u043a\u0438\u0439 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/iw.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-il\"><\/i> \u05e2\u05b4\u05d1\u05e8\u05b4\u05d9\u05ea <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/el.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-gr\"><\/i> \u03b5\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ac <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/hu.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-hu\"><\/i> Magyar <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/bg.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-bg\"><\/i> \u0431\u044a\u043b\u0433\u0430\u0440\u0441\u043a\u0438 <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/af.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-za\"><\/i> Afrikaans <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/bs.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-ba\"><\/i> Bosanski <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/fa.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-ir\"><\/i> \u0641\u0627\u0631\u0633\u06cc <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/da.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-dk\"><\/i> Danske <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/fi.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-fi\"><\/i> Suomi <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/id.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-id\"><\/i> bahasa Indonesia <\/a> <\/li>\n <li> <a class=\"trans-dot3s notranslate\" href=\"https:\/\/pl.covna-china.com\" target=\"_blank\"> <i class=\"flag-icon flag-icon-pl\"><\/i> Polskie <\/a> <\/li>\n <\/ul>\n<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"header-area inside_pages_site\">\n <div class=\"navbar-area\">\n <div class=\"main-responsive-nav\">\n <div class=\"w1200\">\n <div class=\"mobile-nav\"> <a href=\"https:\/\/da.covna-china.com\/\" class=\"logo\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg\" alt=\"logo\" width=\"140\" height=\"24\"><\/a>\n <ul class=\"menu-sidebar menu-small-device\">\n<li> <i class=\"fa fa-search\"><\/i>\n <div class=\"m-search-box search_g_box\">\n <form action=\"\/search\/products\" method=\"GET\"> <input type=\"text\" name=\"keyword\" placeholder=\"S\u00f8ge...\" required><button type=\"submit\"><i class=\"fa fa-search\"><\/i><\/button> <\/form>\n <\/div>\n <\/li>\n <\/ul>\n<div class=\"switch-mobile-nav-btn d-lg-block\">\n <div class=\"m-switch\"> <i class=\"fa fa-bars\"><\/i> <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"main-nav\">\n <div class=\"w1200\">\n <nav class=\"navbar navbar-expand-md navbar-light\"><a class=\"navbar-brand\" href=\"https:\/\/da.covna-china.com\/\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1637048804_logo.png\" alt=\"logo\" width=\"140\" height=\"24\" class=\"logo1 logo\"><img src=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg\" alt=\"logo\" width=\"140\" height=\"24\" class=\"logo2 logo\"><\/a>\n <div class=\"collapse navbar-collapse mean-menu\" id=\"navbarSupportedContent\">\n <ul class=\"navbar-nav\">\n<li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/\" class=\"nav-link dropdown-toggle\">Hjem<\/a> <\/li>\n <li class=\"nav-item has_box\"> <a href=\"https:\/\/da.covna-china.com\/products\/all.html\" class=\"nav-link dropdown-toggle\">Produkter<i class=\"fa fa-caret-down\"><\/i><\/a>\n <div class=\"dropdown-menu sub_box\">\n <div class=\"list-title text-left\"> <a href=\"https:\/\/da.covna-china.com\/products\/all.html\"> <span>Produkter<\/span> <\/a> <\/div>\n <div class=\"row\">\n <div class=\"col-lg-4 col-md-4 col-sm-6 col-xs-12 col-12 sub_item\"> <a href=\"https:\/\/da.covna-china.com\/products\/electric-actuated-valve.html\">\n <div class=\"sub_item_img\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1639556005_image_1638174527_Pneumatic-Valve.jpg?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Elektrisk aktiveret ventil\">\n<\/div> <span>Elektrisk aktiveret ventil<\/span>\n <\/a> <\/div>\n <div class=\"col-lg-4 col-md-4 col-sm-6 col-xs-12 col-12 sub_item\"> <a href=\"https:\/\/da.covna-china.com\/products\/pneumatic-actuated-valve.html\">\n <div class=\"sub_item_img\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1638174547_Electric-valve.jpg?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Pneumatisk aktiveret ventil\">\n<\/div> <span>Pneumatisk aktiveret ventil<\/span>\n <\/a> <\/div>\n <div class=\"col-lg-4 col-md-4 col-sm-6 col-xs-12 col-12 sub_item\"> <a href=\"https:\/\/da.covna-china.com\/products\/solenoid-valve.html\">\n <div class=\"sub_item_img\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1637133618_Solenoid-valve.jpg?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Magnetventil\">\n<\/div> <span>Magnetventil<\/span>\n <\/a> <\/div>\n <div class=\"col-lg-4 col-md-4 col-sm-6 col-xs-12 col-12 sub_item\"> <a href=\"https:\/\/da.covna-china.com\/products\/manual-valve.html\">\n <div class=\"sub_item_img\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1637133592_Manual-valve.jpg?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Manuel ventil\">\n<\/div> <span>Manuel ventil<\/span>\n <\/a> <\/div>\n <div class=\"col-lg-4 col-md-4 col-sm-6 col-xs-12 col-12 sub_item\"> <a href=\"https:\/\/da.covna-china.com\/products\/control-valve.html\">\n <div class=\"sub_item_img\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1644645247_%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20220212134243.png?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Kontrolventil\">\n<\/div> <span>Kontrolventil<\/span>\n <\/a> <\/div>\n <div class=\"col-lg-4 col-md-4 col-sm-6 col-xs-12 col-12 sub_item\"> <a href=\"https:\/\/da.covna-china.com\/products\/actuator.html\">\n <div class=\"sub_item_img\"> <img src=\"\/\/v4-upload.goalsites.com\/728\/image_1644647212_%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20220212142632.jpg?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Aktuator\">\n<\/div> <span>Aktuator<\/span>\n <\/a> <\/div>\n <\/div>\n <\/div>\n <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/page\/about-us.html\" class=\"nav-link dropdown-toggle\">Om os<i class=\"fa fa-caret-down\"><\/i><\/a>\n <ul class=\"dropdown-menu\">\n<li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/page\/history.html\" class=\"nav-link dropdown-toggle\">Historie<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/page\/faq.html\" class=\"nav-link dropdown-toggle\">Ofte stillede sp\u00f8rgsm\u00e5l<\/a> <\/li>\n <\/ul>\n<\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/projects\/all.html\" class=\"nav-link dropdown-toggle\">Projekter<i class=\"fa fa-caret-down\"><\/i><\/a>\n <ul class=\"dropdown-menu\">\n<li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/projects\/pharmaceutical-industry.html\" class=\"nav-link dropdown-toggle\">Medicinalindustri<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/projects\/food-packaging-industry.html\" class=\"nav-link dropdown-toggle\">F\u00f8devareemballage industri<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/projects\/water-treatment.html\" class=\"nav-link dropdown-toggle\">Vandbehandling<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/projects\/industrial-field.html\" class=\"nav-link dropdown-toggle\">Industriomr\u00e5de<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/projects\/chemical-industry-field.html\" class=\"nav-link dropdown-toggle\">Kemisk industri omr\u00e5de<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/projects\/petroleum-and-natural-gas.html\" class=\"nav-link dropdown-toggle\">Olie og naturgas<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/projects\/construction-project.html\" class=\"nav-link dropdown-toggle\">Byggeprojekt<\/a> <\/li>\n <\/ul>\n<\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/articles\/all.html\" class=\"nav-link dropdown-toggle\">Blog<i class=\"fa fa-caret-down\"><\/i><\/a>\n <ul class=\"dropdown-menu\">\n<li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/articles\/company-news.html\" class=\"nav-link dropdown-toggle\">Virksomhedsnyheder<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/articles\/industry-news.html\" class=\"nav-link dropdown-toggle\">Industri Nyheder<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/articles\/valves-study.html\" class=\"nav-link dropdown-toggle\">Ventiler Unders\u00f8gelse<\/a> <\/li>\n <\/ul>\n<\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/videos\/lives.html\" class=\"nav-link dropdown-toggle\">Leve<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/encyclopedias\/encyclopedia.html\" class=\"nav-link dropdown-toggle\">Encyklop\u00e6di<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/page\/contact-us.html\" class=\"nav-link dropdown-toggle\">Kontakt os<\/a> <\/li>\n <\/ul>\n<div class=\"searchbox\"> <i class=\"fa fa-search\" data-flag=\"false\"><\/i>\n <div class=\"m-search-box search_g_box\">\n <form action=\"\/search\/products\" method=\"GET\"> <input type=\"text\" name=\"keyword\" placeholder=\"S\u00f8ge...\" required><button type=\"submit\"><i class=\"fa fa-search\"><\/i><\/button> <\/form>\n <\/div>\n <\/div>\n <\/div>\n <\/nav>\n<\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"m-shadow d-xl-none\"><\/div>\n <nav class=\"mobile-nav-content d-xl-none\"><div class=\"company-logo\"> <a href=\"https:\/\/da.covna-china.com\/\"><img src=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg\" alt=\"logo\" width=\"140\" height=\"24\"><\/a> <\/div>\n <ul class=\"mobile-nav-list\">\n<li><a href=\"https:\/\/da.covna-china.com\/\">hjem<\/a><\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/products\/all.html\">Produkter<\/a> <i data-flag=\"false\" class=\"fa fa-angle-down dropdownx\"><\/i>\n <ul>\n<li> <a href=\"https:\/\/da.covna-china.com\/products\/electric-actuated-valve.html\">Elektrisk aktiveret ventil<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/products\/pneumatic-actuated-valve.html\">Pneumatisk aktiveret ventil<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/products\/solenoid-valve.html\">Magnetventil<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/products\/manual-valve.html\">Manuel ventil<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/products\/control-valve.html\">Kontrolventil<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/products\/actuator.html\">Aktuator<\/a> <\/li>\n <\/ul>\n<\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/page\/about-us.html\">Om os<\/a> <i data-flag=\"false\" class=\"fa fa-angle-down dropdownx\"><\/i>\n <ul>\n<li> <a href=\"https:\/\/da.covna-china.com\/page\/history.html\">Historie<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/page\/faq.html\">Ofte stillede sp\u00f8rgsm\u00e5l<\/a> <\/li>\n <\/ul>\n<\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/projects\/all.html\">Projekter<\/a> <i data-flag=\"false\" class=\"fa fa-angle-down dropdownx\"><\/i>\n <ul>\n<li> <a href=\"https:\/\/da.covna-china.com\/projects\/pharmaceutical-industry.html\">Medicinalindustri<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/projects\/food-packaging-industry.html\">F\u00f8devareemballage industri<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/projects\/water-treatment.html\">Vandbehandling<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/projects\/industrial-field.html\">Industriomr\u00e5de<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/projects\/chemical-industry-field.html\">Kemisk industri omr\u00e5de<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/projects\/petroleum-and-natural-gas.html\">Olie og naturgas<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/projects\/construction-project.html\">Byggeprojekt<\/a> <\/li>\n <\/ul>\n<\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/articles\/all.html\">Blog<\/a> <i data-flag=\"false\" class=\"fa fa-angle-down dropdownx\"><\/i>\n <ul>\n<li> <a href=\"https:\/\/da.covna-china.com\/articles\/company-news.html\">Virksomhedsnyheder<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/articles\/industry-news.html\">Industri Nyheder<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/articles\/valves-study.html\">Ventiler Unders\u00f8gelse<\/a> <\/li>\n <\/ul>\n<\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/videos\/lives.html\">Leve<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/encyclopedias\/encyclopedia.html\">Encyklop\u00e6di<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/page\/contact-us.html\">Kontakt os<\/a> <\/li>\n <\/ul><\/nav><section class=\"breadcrumb_nav\"><div class=\"uni-banner\" style=\"background-image:url(\/\/v4-upload.goalsites.com\/728\/image_1637197343_News-details_02.jpg);background-size:cover;background-repeat:no-repeat;background-position:center\">\n <div class=\"w1200\">\n <div class=\"uni-banner-text\">\n <h1>Ventiler Unders\u00f8gelse<\/h1>\n <ul>\n<li><a href=\"https:\/\/da.covna-china.com\/\">Hjem<\/a><\/li>\n <li><span>Ventiler Unders\u00f8gelse<\/span><\/li>\n <\/ul>\n<\/div>\n <\/div>\n <\/div>\n <\/section><script>\n ! function() {\n window.location.origin;\n var t = window.location.hostname,\n s = \"English\",\n e = document.querySelector(\"#lang_icon\"),\n a = document.querySelector(\"#lang_text\");\n \/^(fr\\.)\/.test(t) ? (s = \"Fran\u00e7ais\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-fr\"))) : \/^(ru\\.)\/.test(t) ? (s = \"P\u0443\u0441\u0441\u043a\u0438\u0439\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-ru\"))) : \/^(ar\\.)\/.test(t) ? (s = \"\u0627\u0644\u0644\u063a\u0629 \u0627\u0644\u0639\u0631\u0628\u064a\u0629\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-sa\"))) : \/^(es\\.)\/.test(t) ? (s = \"Espa\u00f1ol\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-es\"))) : \/^(cn\\.|zh-cn\\.)\/.test(t) ? (s = \"\u7b80\u4f53\u4e2d\u6587\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-cn\"))) : \/^(en\\.|www\\.)\/.test(t) ? (s = \"English\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-gb\"))) : \/^(nl\\.)\/.test(t) ? (s = \"Nederlands\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-nl\"))) : \/^(ja\\.)\/.test(t) ? (s = \"\u65e5\u672c\u8a9e\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-jp\"))) : \/^(de\\.)\/.test(t) ? (s = \"Deutsch\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-de\"))) : \/^(ko\\.)\/.test(t) ? (s = \"\ud55c\uad6d\uc5b4\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-kr\"))) : \/^(iw\\.)\/.test(t) ? (s = \"\u05e2\u05b4\u05d1\u05e8\u05b4\u05d9\u05ea\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-il\"))) : \/^(it\\.)\/.test(t) ? (s = \"Italiano\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-it\"))) : \/^(ca\\.)\/.test(t) ? (s = \"Catal\u00e0\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-ad\"))) : \/^(cs\\.)\/.test(t) ? (s = \"\u010de\u0161tina\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-cz\"))) : \/^(hr\\.)\/.test(t) ? (s = \"Hrvatski\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-hr\"))) : \/^(lv\\.)\/.test(t) ? (s = \"Latvij\u0101\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-lv\"))) : \/^(lt\\.)\/.test(t) ? (s = \"Italiano\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-lt\"))) : \/^(ms\\.)\/.test(t) ? (s = \"Melayu\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-my\"))) : \/^(th\\.)\/.test(t) ? (s = \"\u0e20\u0e32\u0e29\u0e32\u0e44\u0e17\u0e22\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-th\"))) : \/^(ro\\.)\/.test(t) ? (s = \"Rom\u00e2n\u0103\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-ro\"))) : \/^(mt\\.)\/.test(t) ? (s = \"Malti\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-mt\"))) : \/^(no\\.)\/.test(t) ? (s = \"Norsk\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-no\"))) : \/^(sv\\.)\/.test(t) ? (s = \"Svenska\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-se\"))) : \/^(sk\\.)\/.test(t) ? (s = \"slovensk\u00fd\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-sk\"))) : \/^(sl\\.)\/.test(t) ? (s = \"Sloven\u0161\u010dina\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-si\"))) : \/^(tr\\.)\/.test(t) ? (s = \"T\u00fcrk\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-tr\"))) : \/^(hi\\.)\/.test(t) ? (s = \"\u0939\u093f\u0902\u0926\u0940\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-in\"))) : \/^(vi\\.)\/.test(t) ? (s = \"Ti\u1ebfng Vi\u1ec7t\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-vn\"))) : \/^(et\\.)\/.test(t) ? (s = \"Eesti\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-ee\"))) : \/^(sw\\.)\/.test(t) ? (s = \"Kiswahili\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-tz\"))) : \/^(ur\\.)\/.test(t) ? (s = \"\u0627\u0631\u062f\u0648\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-pk\"))) : \/^(uk\\.)\/.test(t) ? (s = \"\u0423\u043a\u0440\u0430\u0457\u043d\u0441\u044c\u043a\u0438\u0439\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-ua\"))) : \/^(iw\\.)\/.test(t) ? (s = \"\u05e2\u05b4\u05d1\u05e8\u05b4\u05d9\u05ea\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-il\"))) : \/^(el\\.)\/.test(t) ? (s = \"\u03b5\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ac\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-gr\"))) : \/^(hu\\.)\/.test(t) ? (s = \"Magyar\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-hu\"))) : \/^(bg\\.)\/.test(t) ? (s = \"\u0431\u044a\u043b\u0433\u0430\u0440\u0441\u043a\u0438\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-bg\"))) : \/^(af\\.)\/.test(t) ? (s = \"Afrikaans \", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-za\"))) : \/^(bs\\.)\/.test(t) ? (s = \"Bosanski\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-ba\"))) : \/^(fa\\.)\/.test(t) ? (s = \"\u0641\u0627\u0631\u0633\u06cc \", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-ir\"))) : \/^(da\\.)\/.test(t) ? (s = \"Danske\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-dk\"))) : \/^(fi\\.)\/.test(t) ? (s = \"Suomi\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-fi\"))) : \/^(id\\.)\/.test(t) ? (s = \"bahasa Indonesia\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-id\"))) : \/^(pl\\.)\/.test(t) && (s = \"Polskie\", e && (e.removeAttribute(\"class\"), e.setAttribute(\"class\", \"flag-icon flag-icon-pl\"))), a && (a.innerHTML = s)\n }()\n <\/script><style>\n [lang=da] .blog-nav-pills a,\n [lang=de] .blog-nav-pills a,\n [lang=mt] .blog-nav-pills a,\n [lang=ru] .blog-nav-pills a,\n [lang=vi] .blog-nav-pills a {\n width: auto;\n padding: 0 20px\n }\n <\/style>\n<div class=\"blog blog-bg pt-80 pb-70\">\n <div class=\"w1200\">\n <div class=\"blog-section\">\n <ul class=\"blog-nav-pills wow fadeInUp\">\n<li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/articles\/company-news.html\">Virksomhedsnyheder<\/a> <\/li>\n <li class=\"nav-item\"> <a href=\"https:\/\/da.covna-china.com\/articles\/industry-news.html\">Industri Nyheder<\/a> <\/li>\n <li class=\"nav-item active\"> <a href=\"https:\/\/da.covna-china.com\/articles\/valves-study.html\">Ventiler Unders\u00f8gelse<\/a> <\/li>\n <\/ul>\n<div class=\"row\">\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/da.covna-china.com\/article\/features-of-knife-gate-valve.html\" title=\"Funktioner af knivportventil\"> <img class=\"lazy\" alt=\"Funktioner af knivportventil\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>okt 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/da.covna-china.com\/article\/features-of-knife-gate-valve.html\" title=\"Funktioner af knivportventil\">Funktioner af knivportventil<\/a> <\/h4>\n <p>Knivportventil kaldes ogs\u00e5 knivportventil, knivportventil, gylleventil og mudderventil. Dens \u00e5bnings- og lukkedele er portplader. Portpladens bev\u00e6gelsesretning er vinkelret p\u00e5 v\u00e6skens retning. Mediet sk\u00e6res af en knivs\u00e6gsport, der kan sk\u00e6re fibermaterialer. Portpladen har to t\u00e6tningsflader. De to t\u00e6tningsoverflader p\u00e5 den mest almindeligt anvendte modeportventil danner w<\/p> <a class=\"read-more-btn\" href=\"https:\/\/da.covna-china.com\/article\/features-of-knife-gate-valve.html\">L\u00e6s mere >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/da.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"Hvad er elektrisk kontrolventil?\"> <img class=\"lazy\" alt=\"Hvad er elektrisk kontrolventil?\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>okt 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/da.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"Hvad er elektrisk kontrolventil?\">Hvad er elektrisk kontrolventil?<\/a> <\/h4>\n <p>Den elektriske reguleringsventil er en hydraulisk betjent ventil med en magnetventil som styreventil. Det bruges ofte til automatisk styring i vandforsyning og dr\u00e6ning og industrielle systemer. Kontrolresponsen er n\u00f8jagtig og hurtig, og r\u00f8rledningssystemet \u00e5bnes og lukkes eksternt i henhold til elektriske signaler for at realisere fjernbetjening. Kan udskifte portventil og butterflyventil til stor elektrisk betjening<\/p> <a class=\"read-more-btn\" href=\"https:\/\/da.covna-china.com\/article\/what-is-electric-control-valve.html\">L\u00e6s mere >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/da.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"Forskellen mellem luftdrevet ventil og elektrisk ventil\"> <img class=\"lazy\" alt=\"Forskellen mellem luftdrevet ventil og elektrisk ventil\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1629961935_logo.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>okt 24, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/da.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"Forskellen mellem luftdrevet ventil og elektrisk ventil\">Forskellen mellem luftdrevet ventil og elektrisk ventil<\/a> <\/h4>\n <p>En pneumatisk ventil er en ventil drevet af trykluft. Ved k\u00f8b af pneumatiske ventiler er det kun n\u00f8dvendigt at specificere specifikationer, typer og arbejdstryk for at opfylde indk\u00f8bskravene. str\u00f8m. Forskellen mellem den pneumatiske ventil og magnetventilen er forskellen i signalkilden. Magnetventilen bruger elektricitet til at styre pilotgassen for at skubbe ventilkernen til at skifte dyster<\/p> <a class=\"read-more-btn\" href=\"https:\/\/da.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\">L\u00e6s mere >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/da.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"Hvad er fordelene ved portventil?\"> <img class=\"lazy\" alt=\"Hvad er fordelene ved portventil?\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1630029199_t-video.jpg?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>07. jun. 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/da.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"Hvad er fordelene ved portventil?\">Hvad er fordelene ved portventil?<\/a> <\/h4>\n <p>1. Lille str\u00f8mningsmodstand. Den mellemstore kanal inde i ventilhuset er lige, mediet str\u00f8mmer i en lige linje, og str\u00f8mningsmodstanden er lille. 2. Det er mere arbejdsbesparende, n\u00e5r man \u00e5bner og lukker. Sammenlignet med globusventilen, fordi uanset om den er \u00e5ben eller lukket, er portens bev\u00e6gelsesretning vinkelret p\u00e5 mediets str\u00f8mningsretning. 3. H\u00f8jden er stor og \u00e5bning og lukning ti<\/p> <a class=\"read-more-btn\" href=\"https:\/\/da.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\">L\u00e6s mere >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/da.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"Kender du forskellen mellem elektrisk ventil og magnetventil?\"> <img class=\"lazy\" alt=\"Kender du forskellen mellem elektrisk ventil og magnetventil?\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1630029164_about_icon2.png?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>07. jun. 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/da.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"Kender du forskellen mellem elektrisk ventil og magnetventil?\">Kender du forskellen mellem elektrisk ventil og magnetventil?<\/a> <\/h4>\n <p>1. Magnetventilen har fremragende anti-l\u00e6kage ydeevne, \u00e5bner og lukker hurtigt og har lav effekt. Det er velegnet til brug som afsk\u00e6ring i nogle kemiske r\u00f8rledninger s\u00e5som korrosion og toksicitet; elektriske ventiler bruges mest til regulering af r\u00f8rledningsflow og installeres normalt i lufttilf\u00f8rsel og k\u00f8ling. R\u00f8rledningens luftudl\u00f8b kan ogs\u00e5 bruges i flydende r\u00f8rledninger og bruges i vid udstr\u00e6kning i canne<\/p> <a class=\"read-more-btn\" href=\"https:\/\/da.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\">L\u00e6s mere >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/da.covna-china.com\/article\/what-is-the-function-of-the-electric-gate-valve.html\" title=\"Hvad er funktionen af den elektriske portventil?\"> <img class=\"lazy\" alt=\"Hvad er funktionen af den elektriske portventil?\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1637137206_electric-3-piece-weld-ball-valve-300x300.png?imageView2\/1\/w\/376\/h\/251\/format\/webp\" width=\"376\" height=\"251\"><\/a>\n <div class=\"blog-text\">\n <div class=\"blog-date\">\n <ul>\n<li> <i class=\"far fa-calendar-alt\"><\/i> <span>07. jun. 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/da.covna-china.com\/article\/what-is-the-function-of-the-electric-gate-valve.html\" title=\"Hvad er funktionen af den elektriske portventil?\">Hvad er funktionen af den elektriske portventil?<\/a> <\/h4>\n <p>Elektrisk portventil er en meget anvendt ventil, der hovedsageligt bruges til analog regulering af medium flow i v\u00e6ske-, gas- og vindsystemer og er AI-kontrol. Ved styring af store ventiler og vindsystemer kan elektriske ventiler ogs\u00e5 bruges til topositionskontaktstyring. Funktionsprincippet for den elektriske portventil er, at den elektriske portventil normalt er forbundet med en elektrisk aktuator og ventilen, en<\/p> <a class=\"read-more-btn\" href=\"https:\/\/da.covna-china.com\/article\/what-is-the-function-of-the-electric-gate-valve.html\">L\u00e6s mere >><\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"col-lg-12 col-md-12 col-12 pagination-box wow fadeInUp\">\n <nav aria-label=\"Page navigation example\"><ul class=\"pagination\">\n<li class=\"active\"><a href=\"javascript:void(0);\">1<\/a><\/li>\n <li><a href=\"https:\/\/da.covna-china.com\/articles\/valves-study\/2.html\">2<\/a><\/li>\n <li><a href=\"https:\/\/da.covna-china.com\/articles\/valves-study\/3.html\">3<\/a><\/li>\n <li><a href=\"https:\/\/da.covna-china.com\/articles\/valves-study\/4.html\">4<\/a><\/li>\n <li><a href=\"https:\/\/da.covna-china.com\/articles\/valves-study\/5.html\">5<\/a><\/li>\n <\/ul><\/nav>\n<\/div>\n <\/div>\n <\/div>\n <script type=\"application\/ld+json\">\n {\n \"@context\": \"https:\\\/\\\/schema.org\",\n \"@type\": \"ItemList\",\n \"itemListElement\": [{\n \"@type\": \"ListItem\",\n \"position\": 1,\n \"url\": \"\\\/article\\\/features-of-knife-gate-valve.html\"\n }, {\n \"@type\": \"ListItem\",\n \"position\": 2,\n \"url\": \"\\\/article\\\/what-is-electric-control-valve.html\"\n }, {\n \"@type\": \"ListItem\",\n \"position\": 3,\n \"url\": \"\\\/article\\\/the-difference-between-air-operated-valve-and-electric-valve.html\"\n }, {\n \"@type\": \"ListItem\",\n \"position\": 4,\n \"url\": \"\\\/article\\\/what-are-the-advantages-of-gate-valve.html\"\n }, {\n \"@type\": \"ListItem\",\n \"position\": 5,\n \"url\": \"\\\/article\\\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\"\n }, {\n \"@type\": \"ListItem\",\n \"position\": 6,\n \"url\": \"\\\/article\\\/what-is-the-function-of-the-electric-gate-valve.html\"\n }]\n }\n <\/script><style>\n .rightmenu ul li {\n width: 50px;\n height: 50px;\n font-size: 26px;\n line-height: 50px\n }\n\n .rightmenu .side-link {\n position: absolute;\n top: 0;\n right: -200%;\n opacity: 0;\n visibility: hidden;\n color: #fff;\n background-color: var(--mainColor3);\n font-size: 16px;\n line-height: 22px;\n width: 170px;\n min-height: 50px;\n padding: 10px 20px;\n transition: .5s;\n z-index: -1\n }\n\n .rightmenu .side-link a {\n color: #fff !important\n }\n\n .rightmenu .r-icon:hover .side-link {\n right: 50px;\n visibility: visible;\n opacity: 1\n }\n\n .arrow-right02::after,\n .arrow-right02::before {\n width: 18px\n }\n\n .arrow-right02::before {\n right: 20px\n }\n\n .arrow-right02::after {\n right: 8px\n }\n\n .rightmenu .r-icon.envelope a {\n font-size: 0\n }\n\n .rightmenu .r-icon {\n position: relative\n }\n\n .rightmenu .r-icon.envelope a {\n position: absolute;\n width: 100%;\n height: 100%;\n left: 0;\n top: 0\n }\n\n #QuickInquiryModal button.btn-primary {\n background-color: var(--mainColor3) !important;\n border-color: var(--mainColor3) !important;\n color: #fff !important\n }\n\n #QuickInquiryModal button.btn-primary:active,\n #QuickInquiryModal button.btn-primary:hover {\n background-color: var(--mainColor2) !important;\n border-color: var(--mainColor2) !important\n }\n\n #QuickInquiryModal .btn-primary,\n .btn-primary:active {\n color: #fff !important\n }\n\n .footer-links .input-group .form-control2 {\n font-size: 15px;\n border: 1px solid var(--whiteColor2);\n color: rgba(242, 242%, 242%, 50%);\n padding: 8px 15px;\n background: 0 0;\n width: 100%\n }\n\n .footer-links .input-group textarea.form-control2 {\n height: 90px;\n resize: none;\n width: 100%\n }\n\n .footer-links .input-group .btn {\n width: 120px;\n background-color: var(--mainColor3);\n color: #fff\n }\n\n .footer-links .input-group .btn:hover {\n background-color: var(--mainColor)\n }\n\n .footer-links .input-group input::-webkit-input-placeholder,\n .footer-links .input-group textarea::-webkit-input-placeholder {\n color: rgba(242, 242%, 242%, 50%)\n }\n\n .footer-links .input-group input:-moz-placeholder,\n .footer-links .input-group textarea:-moz-placeholder {\n color: rgba(242, 242%, 242%, 50%)\n }\n\n .footer-links .input-group input::-moz-placeholder,\n .footer-links .input-group textarea::-moz-placeholder {\n color: rgba(242, 242%, 242%, 50%)\n }\n\n .footer-links .input-group input:-ms-input-placeholder,\n .footer-links .input-group textarea:-ms-input-placeholder {\n color: rgba(242, 242%, 242%, 50%)\n }\n\n .newsletter .newsletter-btn {\n background: #000;\n padding: 16px 30px;\n color: #fff;\n border-radius: 6px;\n text-transform: uppercase;\n transition: .5s\n }\n\n .newsletter .newsletter-btn:hover {\n background: #fff;\n color: var(--mainColor)\n }\n\n [dir=rtl] .newsletter-content .default-section-heading h3,\n [dir=rtl] .newsletter-content .default-section-heading h6 {\n text-align: right\n }\n\n [dir=rtl] .footer-social-links {\n justify-content: flex-end\n }\n\n [dir=rtl] .footer-links .input-group .form-control {\n border-right: 1px solid var(--whiteColor2);\n border-left: 0\n }\n\n [lang=sk] .newsletter-content .default-section-heading h3 {\n font-size: 30px\n }\n\n @media only screen and (max-width:767px) {\n .rightmenu ul li {\n width: 45px;\n height: 45px;\n line-height: 45px;\n font-size: 24px\n }\n\n .arrow-right02::after,\n .arrow-right02::before {\n width: 14px\n }\n\n .arrow-right02::before {\n right: 18px\n }\n }\n <\/style>\n<div class=\"newsletter pt-65 wow fadeInUp\">\n <div class=\"w1292\">\n <div class=\"newsletter-content\">\n <div class=\"row align-items-center\">\n <div class=\"col-lg-8\">\n <div class=\"default-section-heading\">\n <h3>Klik her for at sp\u00f8rge mere om tilbuddet<\/h3>\n <\/div>\n <\/div>\n <div class=\"col-lg-4\"> <a class=\"newsletter-btn\" data-fancybox data-src=\"#QuickInquiryModal\" href=\"javascript:;\">Send foresp\u00f8rgsel<\/a> <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"footer pb-100\">\n <div class=\"w1200 clearfix\">\n <div class=\"footer-logo-area wow fadeInUp\"> <a href=\"https:\/\/da.covna-china.com\/\"><img src=\"\/\/v4-upload.goalsites.com\/728\/image_1629961960_logo1.png\" alt=\"logo\" width=\"216\" height=\"37\"><\/a>\n <p>Forpligtet til global udbyder af automatiseringsapplikationer<\/p>\n <div class=\"footer-social-links\">\n <ul>\n<li> <a href=\"https:\/\/www.linkedin.com\/in\/covnavalves\/\" target=\"_blank\"><i class=\"fab fa-linkedin-in\"><\/i><\/a> <\/li>\n <li> <a href=\"https:\/\/twitter.com\/valve_covna\" target=\"_blank\"><i class=\"fab fa-twitter\"><\/i><\/a> <\/li>\n <li> <a href=\"https:\/\/www.youtube.com\/channel\/UC3EDFKt6qoQCCyuun5Tfwwg\" target=\"_blank\"><i class=\"fab fa-youtube\"><\/i><\/a> <\/li>\n <li> <a href=\"https:\/\/www.instagram.com\/fluidcontrolvalve\/\" target=\"_blank\"><i class=\"fab fa-instagram\"><\/i><\/a> <\/li>\n <\/ul>\n<\/div>\n <\/div>\n <div class=\"footer-links footer-quick-links wow fadeInUp\">\n <h3 class=\"ft_title\">Hurtige links<\/h3>\n <ul>\n<li> <a href=\"https:\/\/da.covna-china.com\/\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Hjem<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/products\/all.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Produkter<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/page\/about-us.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Om os<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/projects\/all.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Projekter<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/articles\/all.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Blog<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/videos\/lives.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Leve<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/encyclopedias\/encyclopedia.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Encyklop\u00e6di<\/a> <\/li>\n <li> <a href=\"https:\/\/da.covna-china.com\/page\/contact-us.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Kontakt os<\/a> <\/li>\n <\/ul>\n<\/div>\n <div class=\"footer-links footer-contact wow fadeInUp\">\n <h3 class=\"ft_title\">Kontakt os<\/h3>\n <ul>\n<li> <i class=\"fa fa-envelope\"><\/i>\n <p>E-mail:<\/p> <a href=\"mailto:inquiry@covna-china.com\">inquiry@covna-china.com<\/a>\n <\/li>\n <li> <i class=\"fas fa-phone-alt\" style=\"font-size:20px\"><\/i>\n <p>Telefon:<\/p> <a href=\"tel:8613556641138\">+86-1355-6641138<\/a>\n <\/li>\n <li> <i class=\"fas fa-map-marker-alt\" style=\"font-size:20px\"><\/i>\n <p>Sted:<\/p>\n <p>Longchang Micro-Chuangyuan, Dongcheng District Dongguan City, Kina, 523000<\/p>\n <\/li>\n <\/ul>\n<\/div>\n <div class=\"footer-links footer-form wow fadeInUp\">\n <h3>Abonnere<\/h3>\n <p>Abonner p\u00e5 vores nyhedsbrev for at f\u00e5 vores opdaterede nyheder!<\/p>\n <form class=\"form-9b4b062d0df0461a722aba3b8cd1a5d9\" action=\"https:\/\/inquiry.digoodcms.com\/api\/covna\" method=\"POST\"> <input name=\"page\" type=\"hidden\" value><input id=\"backpage2\" name=\"backpage\" type=\"hidden\" value><div class=\"input-group\"> <input type=\"text\" name=\"contact[fullname]\" class=\"form-control2\" required placeholder=\"*Dit navn\">\n<\/div>\n <div class=\"input-group\"> <input type=\"email\" name=\"email\" class=\"form-control2\" placeholder=\"*Din e-mail\" required pattern=\"[-\\w]+@[-\\w]+(\\.[-\\w]+)+\">\n<\/div>\n <div class=\"input-group\"> <textarea name=\"message\" rows=\"3\" class=\"form-control2\" minlength=\"10\" maxlength=\"2000\" required placeholder=\"*Meddelelse\"><\/textarea>\n<\/div>\n <div class=\"input-group\"> <button class=\"btn\" type=\"submit\">sende<\/button> <\/div> <input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_ipAddress\" name=\"custom[ipAddress]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_countryName\" name=\"custom[countryName]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_regionName\" name=\"custom[regionName]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_cityName\" name=\"custom[cityName]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_countryCode\" name=\"custom[countryCode]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_zipCode\" name=\"custom[zipCode]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_latitude\" name=\"custom[latitude]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_longitude\" name=\"custom[longitude]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_timeZone\" name=\"custom[timeZone]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_ipAddress\" name=\"geoip[ipAddress]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_countryName\" name=\"geoip[countryName]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_countryCode\" name=\"geoip[countryCode]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_regionName\" name=\"geoip[regionName]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_cityName\" name=\"geoip[cityName]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_zipCode\" name=\"geoip[zipCode]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_latitude\" name=\"geoip[latitude]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_longitude\" name=\"geoip[longitude]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_timeZone\" name=\"geoip[timeZone]\" type=\"hidden\" value><input name=\"useragent[browser]\" type=\"hidden\" value=\"Chrome[86.0.4240.75]\"><input name=\"useragent[platform]\" type=\"hidden\" value=\"Windows 10\"><input name=\"useragent[lang]\" type=\"hidden\" value=\"zh-CN,zh;q=0.9,ja;q=0.8,en-US;q=0.7,en;q=0.6,zh-TW;q=0.5\"><input name=\"useragent[mobile]\" type=\"hidden\" value=\"No\"><input name=\"useragent[agent_string]\" type=\"hidden\" value=\"Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/86.0.4240.75 Safari\/537.36\">\n<\/form>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"copyright\">\n <div class=\"container\">\n <p class=\"wow fadeInUp\"> <a href=\"https:\/\/da.covna-china.com\/page\/contact-us.html\" target=\"_blank\">Politik om beskyttelse af personlige oplysninger<\/a><br>Ophavsret 2021 Guangdong COVNA Co., Ltd.<\/p>\n <\/div>\n <\/div>\n <div class=\"rightmenu\">\n <ul>\n<li class=\"r-icon envelope\"> <a data-fancybox data-src=\"#QuickInquiryModal\" href=\"javascript:;\" class=\"dg-btn dg-theme\">Hurtig foresp\u00f8rgsel<\/a> <i class=\"fa fa-envelope\"><\/i> <\/li>\n <li class=\"r-icon\"> <a href=\"https:\/\/www.linkedin.com\/in\/covnavalves\/\" target=\"_blank\"><i class=\"fab fa-linkedin-in\"><\/i><\/a> <\/li>\n <li class=\"r-icon\"><a href=\"https:\/\/www.facebook.com\/automaticcontrolvalve\" target=\"_blank\"><i class=\"fab fa-facebook\"><\/i><\/a><\/li>\n <li class=\"r-icon\"><a href=\"https:\/\/www.youtube.com\/channel\/UC3EDFKt6qoQCCyuun5Tfwwg\" target=\"_blank\"><i class=\"fab fa-youtube\"><\/i><\/a><\/li>\n <li class=\"r-icon\">\n <div class=\"icon\"><i class=\"fab fa-whatsapp\"><\/i><\/div>\n <div class=\"side-link\"> <a href=\"https:\/\/api.whatsapp.com\/send?phone=+86%2013556641138&text=Hello\" target=\"_blank\">+86 13556641138<\/a> <\/div>\n <\/li>\n <li class=\"r-top\"><span class=\"standard-arrow-right02 arrow-right02\"><\/span><\/li>\n <\/ul>\n<\/div>\n <section class=\"quick-inquiry-section\" style=\"display:none\"><div class=\"container\">\n <div id=\"QuickInquiryModal\" style=\"width:90%;max-width:800px\">\n <h2>Hurtig foresp\u00f8rgsel<\/h2>\n <form class=\"form-9b4b062d0df0461a722aba3b8cd1a5d9\" action=\"\/\/inquiry.digoodcms.com\/api\/covna\" method=\"post\"> <input name=\"page\" type=\"hidden\" value><input id=\"backpage\" name=\"backpage\" type=\"hidden\" value><div class=\"form-group\"> <label>Navn:<\/label> <input type=\"text\" name=\"contact[Name]\" class=\"form-control\" placeholder=\"Indtast dit navn\">\n<\/div>\n <div class=\"form-group\"> <label>*E-mail:<\/label> <input type=\"email\" name=\"email\" class=\"form-control\" placeholder=\"Indtast din e-mail\" required=\"required\" pattern=\"[-\\w\\.]+@[-\\w]+(\\.[-\\w]+)+\">\n<\/div>\n <div class=\"form-group\"> <label>Telefon:<\/label> <input type=\"text\" name=\"contact[Phone]\" class=\"form-control\" placeholder=\"Indtast telefonnummer\" pattern=\"(\\d{11})|^((\\d{7,8})|(\\d{4}|\\d{3})-(\\d{7,8})|(\\d{4}|\\d{3})-(\\d{7,8})-(\\d{4}|\\d{3}|\\d{2}|\\d{1})|(\\d{7,8})-(\\d{4}|\\d{3}|\\d{2}|\\d{1}))$\">\n<\/div>\n <div class=\"form-group\"> <label>*Meddelelse:<\/label> <textarea class=\"form-control\" rows=\"3\" name=\"message\" placeholder=\"Indtast din besked\" required=\"required\"><\/textarea>\n<\/div> <button type=\"submit\" class=\"btn btn-primary\">Send foresp\u00f8rgsel<\/button> <input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_ipAddress\" name=\"custom[ipAddress]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_countryName\" name=\"custom[countryName]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_regionName\" name=\"custom[regionName]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_cityName\" name=\"custom[cityName]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_countryCode\" name=\"custom[countryCode]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_zipCode\" name=\"custom[zipCode]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_latitude\" name=\"custom[latitude]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_longitude\" name=\"custom[longitude]\" type=\"hidden\" value><input class=\"custom-9d8f26d035caca65c39d87e81ea0fb9f_timeZone\" name=\"custom[timeZone]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_ipAddress\" name=\"geoip[ipAddress]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_countryName\" name=\"geoip[countryName]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_countryCode\" name=\"geoip[countryCode]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_regionName\" name=\"geoip[regionName]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_cityName\" name=\"geoip[cityName]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_zipCode\" name=\"geoip[zipCode]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_latitude\" name=\"geoip[latitude]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_longitude\" name=\"geoip[longitude]\" type=\"hidden\" value><input class=\"geo-fe53cf800e6e617fc6320c18794f89a5_timeZone\" name=\"geoip[timeZone]\" type=\"hidden\" value><input name=\"useragent[browser]\" type=\"hidden\" value=\"Chrome[86.0.4240.75]\"><input name=\"useragent[platform]\" type=\"hidden\" value=\"Windows 10\"><input name=\"useragent[lang]\" type=\"hidden\" value=\"zh-CN,zh;q=0.9,ja;q=0.8,en-US;q=0.7,en;q=0.6,zh-TW;q=0.5\"><input name=\"useragent[mobile]\" type=\"hidden\" value=\"No\"><input name=\"useragent[agent_string]\" type=\"hidden\" value=\"Mozilla\/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit\/537.36 (KHTML, like Gecko) Chrome\/86.0.4240.75 Safari\/537.36\">\n<\/form>\n <\/div>\n <\/div>\n <\/section><script src=\"https:\/\/cdn.staticfile.org\/twitter-bootstrap\/4.5.0\/js\/bootstrap.min.js\"><\/script><script src=\"https:\/\/cdn.staticfile.org\/wow\/1.1.2\/wow.min.js\"><\/script><script src=\"https:\/\/cdn.staticfile.org\/Swiper\/6.0.4\/swiper-bundle.min.js\"><\/script><script src=\"https:\/\/cdn.staticfile.org\/jquery.lazyload\/1.9.1\/jquery.lazyload.min.js\"><\/script><script src=\"https:\/\/cdn.staticfile.org\/fancybox\/3.5.7\/jquery.fancybox.min.js\"><\/script><script type=\"text\/javascript\" src=\"\/\/v4-assets.goalsites.com\/huangzd\/plugins\/jqueryCountup20161120\/js\/jquery.waypoints.min.js\"><\/script><script type=\"text\/javascript\" src=\"\/\/v4-assets.goalsites.com\/huangzd\/plugins\/jqueryCountup20161120\/js\/jquery.countup.min.js\"><\/script><script type=\"text\/javascript\" charset=\"utf-8\">\n $((function() {\n var e, t, a;\n document.querySelectorAll('a[href^=\"mailto:\"]').forEach((function(e, t) {\n e.onclick = function() {\n \"inquiry@covna-china.com\" == event.target.innerText.trim() && (console.log(\"email\"), gtag_report_conversion_1(window.location.href))\n }\n })),\n function() {\n window.location.origin;\n var e = window.location.host;\n if (\"rtl\" == (document.getElementsByTagName(\"html\")[0].getAttribute(\"dir\") || document.documentElement.dir) || \/^(ar\\.)\/.test(e) || \/^(iw\\.)\/.test(e)) {\n var t = document.head || document.getElementsByTagName(\"head\")[0],\n a = [\"https:\/\/www.unpkg.com\/bootstrap-rtl@3.3.4\/dist\/css\/bootstrap-rtl.min.css\", \"https:\/\/www.unpkg.com\/bootstrap-rtl@3.3.4\/dist\/css\/bootstrap-flipped.min.css\", \"https:\/\/cdn.staticfile.org\/bootstrap-rtl\/3.4.0\/css\/bootstrap-rtl.min.css\", \"https:\/\/cdn.staticfile.org\/bootstrap-rtl\/3.4.0\/css\/bootstrap-flipped.min.css\"];\n for (let e = 0; e < a.length; e++) {\n var o = document.createElement(\"link\");\n o.rel = \"stylesheet\", o.type = \"text\/css\", o.href = a[e], t.appendChild(o)\n }\n }\n }(), $(\"img.lazy\").lazyload({\n threshold: 20\n }), $(\"img\").each((function(e, t) {\n $(this).attr(\"alt\") || $(this).attr(\"alt\", \"sdfsdf\")\n })), $(\".message-19632ee5cb55d3abbb3d9220c22e4a17\").length && $(\".message-19632ee5cb55d3abbb3d9220c22e4a17\").val(\"from: \" + window.location.href + \", date: \" + (e = new Date, t = `${e.getFullYear()}\/${e.getMonth()+1>9?e.getMonth()+1:\"0\"+(e.getMonth()+1)}\/${e.getDate()>9?e.getDate():\"0\"+e.getDate()} ${e.getHours()>9?e.getHours():\"0\"+e.getHours()}:${e.getMinutes()>9?e.getMinutes():\"0\"+e.getMinutes()}:${e.getSeconds()>9?e.getSeconds():\"0\"+e.getSeconds()}`, a = Math.random(), t + \", version=\" + (a = a.toString().substr(3)))), $(\".m-switch\").click((function() {\n $(\".mobile-nav-content\").css(\"left\", \"0\"), $(\".m-shadow\").show()\n })), $(\".m-shadow\").click((function() {\n $(\".mobile-nav-content\").css(\"left\", \"-70%\"), $(\".m-shadow\").hide(), $(\".dropdownx\").data(\"flag\", !1).css({\n transform: \"rotateZ(0deg)\",\n right: \"0\"\n }), $(\".mobile-nav-content>ul>li\").find(\"ul\").css(\"display\", \"none\")\n })), $(\".dropdownx\").click((function() {\n var e = $(this).data(\"flag\");\n console.log(e), 0 == e ? ($(this).data(\"flag\", !0).css({\n transform: \"rotateZ(180deg)\",\n right: \"1px\"\n }), $(this).parent().children(\"ul\").slideDown(200)) : ($(this).data(\"flag\", !1).css({\n transform: \"rotateZ(0deg)\",\n right: \"0\"\n }), $(this).parent().children(\"ul\").slideUp(200))\n }));\n var o = function() {\n $(window).width() > 1199 && $(window).scroll((function() {\n $(window).scrollTop() > 0 ? $(\".features \").addClass(\"active\") : $(\".features\").removeClass(\"active\")\n }))\n };\n ($(window).resize((function() {\n o()\n })), o(), $(window).scroll((function() {\n $(window).scrollTop() > 0 ? ($(\".topbar\").addClass(\"fadeOut\"), $(\".navbar-area\").addClass(\"sticky\"), $(\".navbar-area .main-nav\").addClass(\"sticky\")) : ($(\".topbar\").removeClass(\"fadeOut\"), $(\".navbar-area\").removeClass(\"sticky\"), $(\".navbar-area .main-nav\").removeClass(\"sticky\"))\n })), $(\".language-select\").click((function() {\n $(this).find(\".dropdown\").toggleClass(\"open\")\n })), $(window).on(\"scroll\", (function() {\n var e = $(window).scrollTop();\n e > 600 && $(\".r-top\").addClass(\"active\"), e < 600 && $(\".r-top\").removeClass(\"active\")\n })), $(\".r-top\").on(\"click\", (function() {\n $(\"html, body\").animate({\n scrollTop: \"0\"\n }, 200)\n })), $(\".wow\").length) && new WOW({\n mobile: !1\n }).init();\n if ($(\".counter-nos\").countUp({\n delay: 10,\n time: 1e3\n }), $(\".searchbox>.fa-search, .menu-small-device .fa-search\").click((function(e) {\n 0 == $(this).data(\"flag\") ? ($(this).data(\"flag\", !0), $(\".search_g_box\").fadeIn(100)) : ($(this).data(\"flag\", !1), $(\".search_g_box\").fadeOut(100))\n })), $(document).click((function(e) {\n $(\".search_g_box\").fadeOut(100), $(\".searchbox>.fa-search, .menu-small-device .fa-search\").data(\"flag\", !1)\n })), $(\".search_g_box, .searchbox>.fa-search, .menu-small-device .fa-search\").click((function(e) {\n (e = e || window.event).stopPropagation ? e.stopPropagation() : e.cancelBubble = !0\n })), $(\".pricingSwiper\").length) new Swiper(\".pricingSwiper\", {\n slidesPerView: 1,\n spaceBetween: 10,\n centeredSlides: !1,\n loop: !0,\n lazy: !0,\n autoplay: !0,\n navigation: {\n nextEl: \".pricing-next\",\n prevEl: \".pricing-prev\"\n },\n breakpoints: {\n 640: {\n slidesPerView: 1,\n centeredSlides: !1\n },\n 768: {\n slidesPerView: 2,\n centeredSlides: !1\n },\n 1024: {\n slidesPerView: 3,\n centeredSlides: !0\n }\n }\n });\n if ($(\".globalSwiper\").length) var n = new Swiper(\".globalSwiper\", {\n spaceBetween: 3,\n slidesPerView: 2,\n loop: !0,\n lazy: !0,\n navigation: {\n nextEl: \".global-next\",\n prevEl: \".global-prev\"\n },\n breakpoints: {\n 640: {\n slidesPerView: 2\n },\n 768: {\n slidesPerView: 4\n },\n 1024: {\n slidesPerView: 7\n }\n },\n on: {\n slideChange: function() {\n var e = this.realIndex;\n $(\".tabItem\").eq(e).addClass(\"on\").siblings().removeClass(\"on\")\n }\n }\n });\n if ($(\".global2Swiper\").length && $(\".global2Swiper\").each((function(e) {\n window[\"global2Swiper\" + e] = new Swiper(this, {\n spaceBetween: 21,\n slidesPerView: 2,\n loop: !0,\n lazy: !0,\n navigation: {\n nextEl: \".global2-next\",\n prevEl: \".global2-prev\"\n },\n breakpoints: {\n 640: {\n slidesPerView: 2\n },\n 768: {\n slidesPerView: 3\n },\n 1024: {\n slidesPerView: 4\n }\n },\n observer: !0,\n observeParents: !0\n })\n })), $(\".globalSwiper .swiper-slide\").click((function() {\n var e = $(this).index();\n n.slideTo(e, 1e3, !1), $(\".tabItem\").eq(e).addClass(\"on\").siblings().removeClass(\"on\")\n })), \/msie|trident\/i.test(navigator.userAgent) && $(\"img\").each((function(e, t) {\n var a = $(this).attr(\"src\");\n \/\\\/format\\\/webp\/i.test(a) && $(this).attr(\"src\", a.replace(\/\\\/format\\\/webp\/g, \"\"))\n })), -1 != window.location.toString().indexOf(\"pref=padindex\"));\n else if ((\/AppleWebKit.*Mobile\/i.test(navigator.userAgent) || \/MIDP|SymbianOS|NOKIA|SAMSUNG|LG|NEC|TCL|Alcatel|BIRD|DBTEL|Dopod|PHILIPS|HAIER|LENOVO|MOT-|Nokia|SonyEricsson|SIE-|Amoi|ZTE\/.test(navigator.userAgent)) && window.location.href.indexOf(\"?mobile\") < 0) try {\n \/Android|Windows Phone|webOS|iPhone|iPod|BlackBerry\/i.test(navigator.userAgent) || \/iPad\/i.test(navigator.userAgent), \/iPhone\/i.test(navigator.userAgent) && $(\"img\").each((function(e, t) {\n var a = $(this).attr(\"src\");\n \/\\\/format\\\/webp\/i.test(a) && $(this).attr(\"src\", a.replace(\/\\\/format\\\/webp\/g, \"\"))\n }))\n } catch (e) {}\n\n function i(e) {\n $(\".custom-9d8f26d035caca65c39d87e81ea0fb9f_ipAddress\").val(e.ipAddress), $(\".custom-9d8f26d035caca65c39d87e81ea0fb9f_countryName\").val(e.countryName), $(\".custom-9d8f26d035caca65c39d87e81ea0fb9f_regionName\").val(e.regionName), $(\".custom-9d8f26d035caca65c39d87e81ea0fb9f_cityName\").val(e.cityName), $(\".custom-9d8f26d035caca65c39d87e81ea0fb9f_countryCode\").val(e.countryCode), $(\".custom-9d8f26d035caca65c39d87e81ea0fb9f_zipCode\").val(e.zipCode), $(\".custom-9d8f26d035caca65c39d87e81ea0fb9f_latitude\").val(e.latitude), $(\".custom-9d8f26d035caca65c39d87e81ea0fb9f_longitude\").val(e.longitude), $(\".custom-9d8f26d035caca65c39d87e81ea0fb9f_timeZone\").val(e.timeZone), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_country\").val(e.countryCode), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_ipAddress\").val(e.ipAddress), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_countryName\").val(e.countryName), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_countryCode\").val(e.countryCode), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_regionName\").val(e.regionName), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_cityName\").val(e.cityName), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_zipCode\").val(e.zipCode), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_latitude\").val(e.latitude), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_longitude\").val(e.longitude), $(\".geo-fe53cf800e6e617fc6320c18794f89a5_timeZone\").val(e.timeZone), $(\"form[method='post']\").each((function(t, a) {\n $(this).find(\"[name='country']\").length || $(this).append('<input name=\"country\" type=\"hidden\" value=\"' + e.countryCode + '\">')\n }))\n }\n if (function() {\n var e = window.location.protocol;\n $(\".form-9b4b062d0df0461a722aba3b8cd1a5d9\").attr(\"action\", e + \"\/\/inquiry.digoodcms.com\/api\/covna\");\n var t = e + \"\/\/\" + document.location.hostname + \"\/inquiryok?back=\" + document.location.pathname;\n $(\"[name='backpage']\").attr(\"value\", t), $(\"[name='page']\").attr(\"value\", window.location.href)\n }(), sessionStorage.getItem(\"geoInfo\")) {\n var s = sessionStorage.getItem(\"geoInfo\");\n i(r = JSON.parse(s))\n } else {\n s = \"\";\n for (var r = \"\", c = document.cookie.split(\";\"), l = 0; l < c.length; l++) \/geoinfo\/i.test(c[l]) && (s = c[l]);\n if (s) r = (s = decodeURIComponent(s)).split(\"=\")[1], sessionStorage.setItem(\"geoInfo\", r), i(r = JSON.parse(r));\n else {\n \/(\\.global\\-marketing\\.cn)\/.test(window.location.href) || \/(\\.global\\-marketing\\.com)\/.test(window.location.href) || \/(\\.digoodcms\\.com)\/.test(window.location.href) ? console.log(\"testing\") : console.log(\"Please update the front-end code package !\")\n }\n }\n $(\"body\").append(\"<div class='error-msg' style='position: fixed; top: 50%; left: 50%; -webkit-transform: translate(-50%, -50%); -moz-transform: translate(-50%, -50%); -ms-transform: translate(-50%, -50%); -o-transform: translate(-50%, -50%); transform: translate(-50%, -50%); max-width: 90%; width: 300px; padding: 15px; background-color: rgba(0, 0, 0, 0.5); border-radius: 4px; display: none; text-align: center; font-size: 18px; color: #fff;'>\"), $(\"form\").submit((function(e) {\n var t = $(this).find(\"[name='email']\"),\n a = $(this).find(\"[name='message']\"),\n o = $(this).find(\"[name='contact[tel]']\"),\n n = !1,\n i = !1;\n\n function s(e) {\n $(\".error-msg\").html(e), $(\".error-msg\").stop().fadeIn(100), setTimeout(() => {\n $(\".error-msg\").stop().fadeOut(1e3)\n }, 3e3)\n }\n if (t.length && (\/[-\\w\\.]+@[-\\w\\.]+(\\.[-\\w]+)+\/.test(t.val()) ? n = !0 : (e.preventDefault(), s(\"Please enter the correct email address!\"))), n && a.length) {\n var r = a.val();\n \/\\S{10,}\/g.test(r.replace(\/\\s\/g, \"\")) ? (a.val(r), i = !0) : (e.preventDefault(), s(\"Please enter your message with more than 10 characters!\"))\n }\n if (n && i) {\n var c = window.location.host;\n if (o.length) {\n r = o.val().trim();\n \/^(zh\\-cn\\.)\/.test(c) || \/\\.risingcn\\.\/.test(c) ? \/^1[3456789]\\d{9}$\/.test(r) || (e.preventDefault(), s(\"\u8bf7\u8f93\u5165\u6b63\u786e\u7684\u624b\u673a\u53f7\u7801\uff01\")) : r.length\n }\n }\n if (\"homeForm\" == e.currentTarget.id) {\n e.preventDefault();\n let t = !1,\n a = window.location.protocol;\n document.location.hostname, document.location.pathname;\n n && i && (t = !0), t && $.post(a + \"\/\/inquiry.digoodcms.com\/api\/save\/covna\", $(this).serialize(), (function(e, t) {\n e.indexOf(\"Inquiry Send Success\") >= 0 && ($(\"#homeForm\").hide(), $(\".submit-success\").show())\n }))\n }\n }))\n }))\n <\/script><script type=\"text\/javascript\" defer>\n var Tawk_API = Tawk_API || {},\n Tawk_LoadStart = new Date;\n ! function() {\n var e = document.createElement(\"script\"),\n t = document.getElementsByTagName(\"script\")[0];\n e.async = !0, e.src = \"https:\/\/embed.tawk.to\/61b159f080b2296cfdd0c8b3\/1fmecel3r\", e.charset = \"UTF-8\", e.setAttribute(\"crossorigin\", \"*\"), t.parentNode.insertBefore(e, t)\n }()\n <\/script><style>\n #_section-links_1k55i_757 {\n padding: 60px 0 30px;\n background-color: #f8f9fa\n }\n\n #_section-links_1k55i_757 ._container-fluid_1k55i_128,\n #_section-links_1k55i_757 ._container_1k55i_128 {\n width: 100%;\n padding-right: 15px;\n padding-left: 15px;\n margin-right: auto;\n margin-left: auto\n }\n\n ._section-title_1k55i_500 {\n font-size: 24px;\n margin-bottom: 15px;\n font-weight: 500;\n color: #333\n }\n\n ._center_1k55i_505._tags-box_13kno_350 {\n text-align: center\n }\n\n @media (min-width:576px) {\n #_section-links_1k55i_757 ._container_1k55i_128 {\n max-width: 540px\n }\n }\n\n @media (min-width:768px) {\n #_section-links_1k55i_757 ._container_1k55i_128 {\n max-width: 720px\n }\n }\n\n @media (min-width:992px) {\n #_section-links_1k55i_757 ._container_1k55i_128 {\n max-width: 960px\n }\n }\n\n @media (min-width:1200px) {\n #_section-links_1k55i_757 ._container_1k55i_128 {\n max-width: 1140px\n }\n }\n\n #_section-links_1k55i_757._section-padding_1k55i_514 {\n padding: 60px 0\n }\n\n #_section-links_1k55i_757 ._section-header_1k55i_505 {\n margin-bottom: 30px\n }\n\n #_section-links_1k55i_757 ._tags-box_13kno_350 span {\n color: #343434;\n font-weight: 600\n }\n\n #_section-links_1k55i_757 ._tags-box_13kno_350 a {\n font-size: 12px;\n padding: 5px 10px;\n border: 1px dashed transparent;\n display: inline-block;\n color: #666;\n text-transform: capitalize\n }\n\n #_section-links_1k55i_757 ._icon_13kno_264 {\n color: inherit;\n fill: currentColor;\n height: 1em;\n width: 1em;\n vertical-align: middle\n }\n\n #_section-links_1k55i_757 ._tags-box_13kno_350 a:hover {\n border-color: #666\n }\n\n #_section-links_1k55i_757._dark_13kno_387 {\n background: #1c2135\n }\n\n #_section-links_1k55i_757._dark_13kno_387 ._section-header_1k55i_505 ._section-title_1k55i_505 {\n color: #fff\n }\n\n #_section-links_1k55i_757._dark_13kno_387 ._tags-box_13kno_350 span {\n color: #eee\n }\n\n #_section-links_1k55i_757._dark_13kno_387 ._tags-box_13kno_350 a:hover {\n border-color: #eee;\n color: #666\n }\n\n [dir=rtl] #_section-links_1k55i_757 {\n text-align: right\n }\n\n ._tags-tab_13kno_350 {\n display: flex;\n flex-direction: column\n }\n\n ._tags-tab_13kno_350 .tab-nav {\n list-style: none;\n display: flex;\n flex-wrap: wrap;\n padding: 0;\n margin-bottom: 15px\n }\n\n ._tags-tab_13kno_350.vetical {\n flex-direction: row\n }\n\n ._tags-tab_13kno_350.vetical .tab-nav {\n flex-direction: column;\n margin-right: 15px;\n padding-right: 15px;\n border-right: 1px solid #ddd\n }\n\n ._tags-tab_13kno_350.vetical .tab-nav .tab-item {\n width: 150px;\n padding: 5px 10px;\n margin-right: .5rem;\n border-bottom: 1px solid transparent\n }\n\n @media (min-width:768px) {\n ._tags-tab_13kno_350.vetical .tab-nav .tab-item {\n width: 220px\n }\n }\n\n ._tags-tab_13kno_350 .tab-nav .tab-link {\n display: inline-block;\n font-size: 14px;\n font-weight: 500;\n text-transform: capitalize;\n color: #666\n }\n\n ._tags-tab_13kno_350.vetical .tab-nav .tab-item {\n padding: 5px 0;\n margin-bottom: 5px\n }\n\n ._tags-tab_13kno_350 .tab-nav .tab-link ._icon_13kno_264 {\n margin-right: .5rem\n }\n\n ._tags-tab_13kno_350 .tab-nav .tab-item {\n margin-right: 1.5rem;\n margin-bottom: .5rem\n }\n\n ._tags-tab_13kno_350 .tab-nav .tab-item.active {\n border-color: #666\n }\n\n ._tags-tab_13kno_350 .tab-nav .tab-item.active .tab-link {\n color: #666\n }\n\n ._tags-tab_13kno_350.vetical .tab-content {\n min-height: 200px\n }\n\n ._tags-tab_13kno_350 .tab-content .tab-pane {\n display: none;\n height: 150px\n }\n\n ._tags-tab_13kno_350 .tab-content .tab-pane.show {\n display: block\n }\n\n [dir=rtl] ._tags-tab_13kno_350 .tab-nav .tab-link ._icon_13kno_264 {\n margin-right: 0;\n margin-left: .5rem\n }\n\n [dir=rtl] ._tags-tab_13kno_350 .tab-nav .tab-link {\n margin-right: 0;\n margin-left: .5rem\n }\n <\/style>\n<section id=\"_section-links_1k55i_757\"><div class=\"_container_1k55i_128\">\n <div class=\"_tags-box_13kno_350 _center_1k55i_505\">\n <h4 class=\"_section-title_1k55i_500\">Relaterede links<\/h4> <a href=\"https:\/\/da.covna-china.com\/dlp\/electric-valve.html\">elektrisk ventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/solenoid-valve.html\">magnetventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/pneumatic-valve.html\">pneumatisk ventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/electric-gate-valve.html\">elektrisk portventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/electric-butterfly-valve.html\">elektrisk sommerfuglventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/motorized-valve.html\">motoriseret ventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/pneumatic-knife-gate-valve.html\">pneumatisk knivportventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/ball-valve.html\">kugleventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/gate-valve.html\">portventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/butterfly-valve.html\">sommerfugl ventil<\/a> <a href=\"https:\/\/da.covna-china.com\/dlp\/globe-valve.html\">globus ventil<\/a>\n <\/div>\n <\/div>\n <\/section>\n<\/body>\n<\/html>\n","status":200,"headers":[],"cookies":[{"Name":"geoInfo","Value":"%7B%22ipAddress%22%3A%2243.135.133.238%22%2C%22countryName%22%3A%22United%20States%22%2C%22countryCode%22%3A%22US%22%2C%22cityName%22%3A%22Santa%20Clara%22%2C%22regionName%22%3A%22California%22%2C%22zipCode%22%3A%2295052%22%2C%22latitude%22%3A37.353%2C%22longitude%22%3A-121.9543%2C%22timeZone%22%3A%22America%5C%2FLos_Angeles%22%7D","Domain":"www.covna-china.com","Path":"\/","Max-Age":null,"Expires":null,"Secure":false,"Discard":false,"HttpOnly":false},{"Name":"saas_session","Value":"eyJpdiI6IlpxT2NLQitWNTlVT09YWitiMGdvTWc9PSIsInZhbHVlIjoieGxJaHBSc09CZVFRZi9RcnUrc0gzR0dsc1c5OU8zZ1ZUdk8vR1JpUTRZT0g1UklKbS9SQy9pVVlMc0I4cE5WRk5POHBEVit1bitUdjUvTEFKUW15MTEwZkxIYjI2OC9wc2dOVG1LbW5UVVJmaWlLV3YyOHdMVlAycFQzS1FRNWMiLCJtYWMiOiJkMjczNTUyM2VkMmFhM2Q3M2MwOTIyNWJjNzdiMWM4NDE0ZTlhN2JlZWUxOWVkNjQ4MmVjMGExN2FmZmExMjllIn0%3D","Domain":"www.covna-china.com","Path":"\/","Max-Age":"7200","Expires":1666767899,"Secure":false,"Discard":false,"HttpOnly":true,"samesite":"lax"}]}</script>