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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 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Les seves parts d'obertura i tancament s\u00f3n plaques de portes. La direcci\u00f3 de moviment de la placa de la porta \u00e9s perpendicular a la direcci\u00f3 del fluid. El mitj\u00e0 es talla mitjan\u00e7ant una porta de vora de ganivet que pot tallar materials de fibra. La placa de la porta t\u00e9 dues superf\u00edcies de segellat. Les dues superf\u00edcies de segellat de la v\u00e0lvula de porta de mode m\u00e9s utilitzada formen w<\/p> <a class=\"read-more-btn\" href=\"https:\/\/ca.covna-china.com\/article\/features-of-knife-gate-valve.html\">Llegir m\u00e9s >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/ca.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"Qu\u00e8 \u00e9s la v\u00e0lvula de control el\u00e8ctric?\"> <img class=\"lazy\" alt=\"Qu\u00e8 \u00e9s la v\u00e0lvula de control el\u00e8ctric?\" 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>24 d'octubre de 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/ca.covna-china.com\/article\/what-is-electric-control-valve.html\" title=\"Qu\u00e8 \u00e9s la v\u00e0lvula de control el\u00e8ctric?\">Qu\u00e8 \u00e9s la v\u00e0lvula de control el\u00e8ctric?<\/a> <\/h4>\n <p>La v\u00e0lvula de control el\u00e8ctric \u00e9s una v\u00e0lvula d'accionament hidr\u00e0ulic amb una v\u00e0lvula solenoide com a v\u00e0lvula guia. Sovint s'utilitza per al control autom\u00e0tic en subministrament i drenatge d'aigua i sistemes industrials. La resposta de control \u00e9s precisa i r\u00e0pida, i el sistema de canonades s'obre i es tanca remotament segons els senyals el\u00e8ctrics per realitzar un funcionament remot. Pot substituir la v\u00e0lvula de porta i la v\u00e0lvula de papallona per operati el\u00e8ctric gran<\/p> <a class=\"read-more-btn\" href=\"https:\/\/ca.covna-china.com\/article\/what-is-electric-control-valve.html\">Llegir m\u00e9s >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/ca.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"La difer\u00e8ncia entre v\u00e0lvula accionada per aire i v\u00e0lvula el\u00e8ctrica\"> <img class=\"lazy\" alt=\"La difer\u00e8ncia entre v\u00e0lvula accionada per aire i v\u00e0lvula el\u00e8ctrica\" 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>24 d'octubre de 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/ca.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\" title=\"La difer\u00e8ncia entre v\u00e0lvula accionada per aire i v\u00e0lvula el\u00e8ctrica\">La difer\u00e8ncia entre v\u00e0lvula accionada per aire i v\u00e0lvula el\u00e8ctrica<\/a> <\/h4>\n <p>Una v\u00e0lvula pneum\u00e0tica \u00e9s una v\u00e0lvula accionada per aire comprimit. En comprar v\u00e0lvules pneum\u00e0tiques, nom\u00e9s cal especificar les especificacions, els tipus i les pressions de treball per complir els requisits de compra. fluir. La difer\u00e8ncia entre la v\u00e0lvula pneum\u00e0tica i la v\u00e0lvula solenoide \u00e9s la difer\u00e8ncia en la font del senyal. La v\u00e0lvula solenoide utilitza electricitat per controlar el gas pilot per emp\u00e8nyer el nucli de la v\u00e0lvula a canviar de sentit<\/p> <a class=\"read-more-btn\" href=\"https:\/\/ca.covna-china.com\/article\/the-difference-between-air-operated-valve-and-electric-valve.html\">Llegir m\u00e9s >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/ca.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"Quins avantatges t\u00e9 la v\u00e0lvula de porta?\"> <img class=\"lazy\" alt=\"Quins avantatges t\u00e9 la v\u00e0lvula de porta?\" 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>Setembre 07, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/ca.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\" title=\"Quins avantatges t\u00e9 la v\u00e0lvula de porta?\">Quins avantatges t\u00e9 la v\u00e0lvula de porta?<\/a> <\/h4>\n <p>1. Petita resist\u00e8ncia al flux. El canal mitj\u00e0 dins del cos de la v\u00e0lvula \u00e9s recte, el mitj\u00e0 flueix en l\u00ednia recta i la resist\u00e8ncia al flux \u00e9s petita. 2. Estalvia m\u00e9s m\u00e0 d'obra a l'hora d'obrir i tancar. En comparaci\u00f3 amb la v\u00e0lvula del globus, perqu\u00e8 tant si est\u00e0 oberta com tancada, la direcci\u00f3 de moviment de la porta \u00e9s perpendicular a la direcci\u00f3 del flux del medi. 3. L'al\u00e7ada \u00e9s gran i el ti d'obertura i tancament<\/p> <a class=\"read-more-btn\" href=\"https:\/\/ca.covna-china.com\/article\/what-are-the-advantages-of-gate-valve.html\">Llegir m\u00e9s >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/ca.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"Coneixes la difer\u00e8ncia entre v\u00e0lvula el\u00e8ctrica i v\u00e0lvula solenoide?\"> <img class=\"lazy\" alt=\"Coneixes la difer\u00e8ncia entre v\u00e0lvula el\u00e8ctrica i v\u00e0lvula solenoide?\" 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>Setembre 07, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/ca.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\" title=\"Coneixes la difer\u00e8ncia entre v\u00e0lvula el\u00e8ctrica i v\u00e0lvula solenoide?\">Coneixes la difer\u00e8ncia entre v\u00e0lvula el\u00e8ctrica i v\u00e0lvula solenoide?<\/a> <\/h4>\n <p>1. La v\u00e0lvula solenoide t\u00e9 un excel\u00b7lent rendiment anti-fuites, s'obre i es tanca r\u00e0pidament i t\u00e9 una pot\u00e8ncia baixa. \u00c9s adequat per al seu \u00fas com a tall en algunes canonades qu\u00edmiques com la corrosi\u00f3 i la toxicitat; les v\u00e0lvules el\u00e8ctriques s'utilitzen principalment per a la regulaci\u00f3 del flux de canonades i normalment s'instal\u00b7len en el subministrament d'aire i la refrigeraci\u00f3. La sortida d'aire de la canonada tamb\u00e9 es pot utilitzar en canonades l\u00edquides i s'utilitza \u00e0mpliament en canya<\/p> <a class=\"read-more-btn\" href=\"https:\/\/ca.covna-china.com\/article\/do-you-know-the-difference-between-electric-valve-and-solenoid-valve.html\">Llegir m\u00e9s >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/ca.covna-china.com\/article\/what-is-the-function-of-the-electric-gate-valve.html\" title=\"Quina \u00e9s la funci\u00f3 de la v\u00e0lvula de porta el\u00e8ctrica?\"> <img class=\"lazy\" alt=\"Quina \u00e9s la funci\u00f3 de la v\u00e0lvula de porta el\u00e8ctrica?\" 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>Setembre 07, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/ca.covna-china.com\/article\/what-is-the-function-of-the-electric-gate-valve.html\" title=\"Quina \u00e9s la funci\u00f3 de la v\u00e0lvula de porta el\u00e8ctrica?\">Quina \u00e9s la funci\u00f3 de la v\u00e0lvula de porta el\u00e8ctrica?<\/a> <\/h4>\n <p>La v\u00e0lvula de porta el\u00e8ctrica \u00e9s una v\u00e0lvula \u00e0mpliament utilitzada, que s'utilitza principalment en la regulaci\u00f3 anal\u00f2gica del flux mitj\u00e0 en sistemes l\u00edquids, de gas i vent, i \u00e9s el control de la IA. En el control de grans v\u00e0lvules i sistemes de vent, les v\u00e0lvules el\u00e8ctriques tamb\u00e9 es poden utilitzar per al control de l'interruptor de dues posicions. El principi de funcionament de la v\u00e0lvula de la porta el\u00e8ctrica \u00e9s que la v\u00e0lvula de la porta el\u00e8ctrica sol estar connectada per un actuador el\u00e8ctric i la v\u00e0lvula, un<\/p> <a class=\"read-more-btn\" href=\"https:\/\/ca.covna-china.com\/article\/what-is-the-function-of-the-electric-gate-valve.html\">Llegir m\u00e9s >><\/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:\/\/ca.covna-china.com\/articles\/valves-study\/2.html\">2<\/a><\/li>\n <li><a href=\"https:\/\/ca.covna-china.com\/articles\/valves-study\/3.html\">3<\/a><\/li>\n <li><a href=\"https:\/\/ca.covna-china.com\/articles\/valves-study\/4.html\">4<\/a><\/li>\n <li><a href=\"https:\/\/ca.covna-china.com\/articles\/valves-study\/5.html\">5<\/a><\/li>\n 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