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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: 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src=\"\/\/v4-upload.goalsites.com\/728\/image_1637133592_Manual-valve.jpg?imageView2\/1\/w\/80\/h\/80\/format\/webp\" alt=\"Valvola manuale\">\n<\/div> <span>Valvola manuale<\/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:\/\/it.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=\"Valvola di controllo\">\n<\/div> <span>Valvola di controllo<\/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:\/\/it.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=\"Attuatore\">\n<\/div> 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La temperatura del fluido deve essere inferiore alla temperatura di taratura dell'elettrovalvola selezionata. La differenza massima di pressione di esercizio deve essere inferiore alla pressione massima di taratura dell'elettrovalvola; generalmente, l'elettrovalvola funziona in una direzione, quindi paga atte<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/matters-needing-attention-in-the-selection-of-solenoid-valves.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/classification-of-solenoid-valves.html\" title=\"Classificazione delle elettrovalvole\"> <img class=\"lazy\" alt=\"Classificazione delle elettrovalvole\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1637154256_1COVNA-HK0018-Series-Tri-Clamp-Food-Grade-Sanitary-Solenoid-Valve.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>Giu 29, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/classification-of-solenoid-valves.html\" title=\"Classificazione delle elettrovalvole\">Classificazione delle elettrovalvole<\/a> <\/h4>\n <p>1. Le elettrovalvole sono divise in tre categorie in linea di principio: 1) Elettrovalvola ad azione diretta: Principio: Quando energizzata, la bobina elettromagnetica genera forza elettromagnetica per sollevare l'elemento di chiusura dalla sede della valvola e la valvola si apre; quando l'alimentazione \u00e8 spenta, la forza elettromagnetica scompare, la molla preme il membro di chiusura sulla sede della valvola e la valvola si chiude. Caratteristiche: Non pu\u00f2 funzionare<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/classification-of-solenoid-valves.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/solenoid-valve-faults-and-troubleshooting-methods.html\" title=\"Guasti dell'elettrovalvola e metodi di risoluzione dei problemi\"> <img class=\"lazy\" alt=\"Guasti dell'elettrovalvola e metodi di risoluzione dei problemi\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1637137170_covnaactuator.com.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>Giu 29, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/solenoid-valve-faults-and-troubleshooting-methods.html\" title=\"Guasti dell'elettrovalvola e metodi di risoluzione dei problemi\">Guasti dell'elettrovalvola e metodi di risoluzione dei problemi<\/a> <\/h4>\n <p>1. L'elettrovalvola non funziona dopo essere stata energizzata Controllare se il cablaggio di alimentazione \u00e8 difettoso, il ri-cablaggio e la connessione del connettore Verificare se la tensione di alimentazione \u00e8 nel campo di lavoro -, regolare l'intervallo di posizione normale Se la bobina \u00e8 dissaldata e risaldata La bobina \u00e8 corta, sostituire la bobina Se la differenza di pressione di esercizio \u00e8 inappropriata, regolare la differenza di pressione<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/solenoid-valve-faults-and-troubleshooting-methods.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/how-to-quickly-judge-the-quality-of-solenoid-valve-on-site.html\" title=\"Come giudicare rapidamente la qualit\u00e0 dell'elettrovalvola in loco\"> <img class=\"lazy\" alt=\"Come giudicare rapidamente la qualit\u00e0 dell'elettrovalvola in loco\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1637890870_Solenoid-Valve.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>Giu 29, 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/how-to-quickly-judge-the-quality-of-solenoid-valve-on-site.html\" title=\"Come giudicare rapidamente la qualit\u00e0 dell'elettrovalvola in loco\">Come giudicare rapidamente la qualit\u00e0 dell'elettrovalvola in loco<\/a> <\/h4>\n <p>Innanzitutto, controlla se la bobina dell'elettrovalvola \u00e8 difettosa. Dare alla valvola a due posizioni un segnale di apertura o chiusura sul DCS, quindi vedere se l'elettrovalvola guadagna o perde potenza. Generalmente, puoi ascoltare il suono sulla scena. Se non riesci a sentirlo, ci deve essere un problema con la bobina. Per quanto riguarda l'elettrovalvola stessa, c'\u00e8 un problema? Se c'\u00e8 un problema con la bobina del solenoide, prima chec<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/how-to-quickly-judge-the-quality-of-solenoid-valve-on-site.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/how-electric-ball-valve-are-used-in-cold-water.html\" title=\"Come vengono utilizzate le valvole a sfera elettriche in acqua fredda\"> <img class=\"lazy\" alt=\"Come vengono utilizzate le valvole a sfera elettriche in acqua fredda\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1637137201_electric-3-piece-flange-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>30 maggio 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/how-electric-ball-valve-are-used-in-cold-water.html\" title=\"Come vengono utilizzate le valvole a sfera elettriche in acqua fredda\">Come vengono utilizzate le valvole a sfera elettriche in acqua fredda<\/a> <\/h4>\n <p>Le valvole a sfera elettriche sono utilizzate per fornire un modo efficiente e affidabile per fornire acqua fredda a case o aziende. Valvole a sfera elettriche per acqua fredda I proprietari di case hanno molte opzioni quando installano scaldacqua automatici. Il modello tradizionale pu\u00f2 richiedere alle persone di avere un professionista che esce e installa il sistema. Tuttavia, l'utilizzo di uno scaldabagno elettrico pu\u00f2 ridurre notevolmente i costi perch\u00e9 l'intero processo ca<\/p> <a class=\"read-more-btn\" href=\"https:\/\/it.covna-china.com\/article\/how-electric-ball-valve-are-used-in-cold-water.html\">Leggi di pi\u00f9 >><\/a>\n <\/div>\n <\/div>\n <div class=\"blog-card col-lg-4 col-md-6 col-12 wow fadeInUp\"> <a href=\"https:\/\/it.covna-china.com\/article\/electric-control-valve-why-you-should-consider-electric-control-of-air-cooling.html\" title=\"Valvola di controllo elettrica: perch\u00e9 dovresti prendere in considerazione il controllo elettrico del raffreddamento ad aria\"> <img class=\"lazy\" alt=\"Valvola di controllo elettrica: perch\u00e9 dovresti prendere in considerazione il controllo elettrico del raffreddamento ad aria\" src=\"\/\/v4-assets.goalsites.com\/yexuming\/icon\/loading1.gif\" data-original=\"\/\/v4-upload.goalsites.com\/728\/image_1636956448_163013411092575.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>30 maggio 2022<\/span>\n<\/li>\n <\/ul>\n<\/div>\n <h4> <a href=\"https:\/\/it.covna-china.com\/article\/electric-control-valve-why-you-should-consider-electric-control-of-air-cooling.html\" title=\"Valvola di controllo elettrica: perch\u00e9 dovresti prendere in considerazione il controllo elettrico del raffreddamento ad aria\">Valvola di controllo elettrica: perch\u00e9 dovresti prendere in considerazione il controllo elettrico del raffreddamento ad aria<\/a> <\/h4>\n <p>Il sistema di controllo delle valvole pi\u00f9 comune e comunemente usato \u00e8 il controllo elettrico a 2 vie a 9 volt. Valvola elettrica a 2 vie 9-24V Questo \u00e8 un dispositivo di controllo molto utile che aiuta a semplificare la progettazione della valvola consentendo un migliore controllo, una maggiore flessibilit\u00e0 e meno errori meccanici. I controlli motorizzati sono molto utili perch\u00e9 possono essere controllati ampiamente. 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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\">Link correlati<\/h4> <a href=\"https:\/\/it.covna-china.com\/dlp\/electric-valve.html\">valvola elettrica<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/solenoid-valve.html\">elettrovalvola<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/pneumatic-valve.html\">valvola pneumatica<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/electric-gate-valve.html\">valvola a saracinesca elettrica<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/electric-butterfly-valve.html\">valvola a farfalla elettrica<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/motorized-valve.html\">valvola motorizzata<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/pneumatic-knife-gate-valve.html\">valvola a saracinesca pneumatica a coltello<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/ball-valve.html\">valvola a sfera<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/gate-valve.html\">Saracinesca<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/butterfly-valve.html\">valvola a farfalla<\/a> <a href=\"https:\/\/it.covna-china.com\/dlp\/globe-valve.html\">valvola a globo<\/a>\n <\/div>\n <\/div>\n 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