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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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L'irrigazione agricola pu\u00f2 ottimizzare il flusso d'acqua attraverso l'uso di varie valvole di azionamento e controllo per garantire che venga utilizzata solo la quantit\u00e0 ottimale di acqua e non sprecata. Naturalmente, il nostro COVNA pu\u00f2 fornire queste valvole pneumatiche ed elettriche per piccole e grandi applicazioni di irrigazione. In questo articolo, impareremo come selezionare e applicare gli attuatori COVNA per regolare il flusso d'acqua nella pratica dell'irrigazione.<br><br>Dove possono essere utilizzati gli attuatori nel settore dell'irrigazione agricola?<br><br>Le valvole elettriche e le valvole pneumatiche hanno una vasta gamma di applicazioni nel settore dell'irrigazione agricola, ma ci vuole un po 'di riflessione e considerazione per trovare il loro miglior uso. L'uso pi\u00f9 grande \u00e8 quello di controllare il flusso d'acqua attraverso anelli di controllo automatizzati. Questi anelli richiedono sensori di umidit\u00e0 per analizzare il livello di umidit\u00e0 del terreno per aprire \/ chiudere la valvola dell'acqua di conseguenza. In questo caso \u00e8 possibile utilizzare una valvola on\/off o di controllo del flusso.<br><br>Quando si utilizzano valvole di controllo, valvole come valvole di arresto e valvole angolari sono di solito la prima scelta nell'irrigazione agricola. Rispetto ad altre valvole, queste valvole hanno una chiusura pi\u00f9 stretta. Gli attuatori COVNA sono adatti per applicazioni con queste valvole perch\u00e9 soddisfano requisiti come coppia, resistenza generale all'usura, ecc., Perch\u00e9 queste applicazioni potrebbero richiedere che l'attuatore sia all'aperto, ecc. 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href=\"https:\/\/it.covna-china.com\/videos\/lives.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Vivere<\/a> <\/li>\n <li> <a href=\"https:\/\/it.covna-china.com\/encyclopedias\/encyclopedia.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Enciclopedia<\/a> <\/li>\n <li> <a href=\"https:\/\/it.covna-china.com\/page\/contact-us.html\"><i class=\"fas fa-long-arrow-alt-right\"><\/i>Contattaci<\/a> <\/li>\n <\/ul>\n<\/div>\n <div class=\"footer-links footer-contact wow fadeInUp\">\n <h3 class=\"ft_title\">Contattaci<\/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>Telefono:<\/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>Ubicazione:<\/p>\n <p>Longchang Micro-Chuangyuan, Dongcheng District Dongguan City, Cina, 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class=\"btn\" type=\"submit\">Invia<\/button> <\/div> <input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_ipAddress\" name=\"custom[ipAddress]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_countryName\" name=\"custom[countryName]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_regionName\" name=\"custom[regionName]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_cityName\" name=\"custom[cityName]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_countryCode\" name=\"custom[countryCode]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_zipCode\" name=\"custom[zipCode]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_latitude\" name=\"custom[latitude]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_longitude\" name=\"custom[longitude]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_timeZone\" name=\"custom[timeZone]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_ipAddress\" name=\"geoip[ipAddress]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_countryName\" name=\"geoip[countryName]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_countryCode\" name=\"geoip[countryCode]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_regionName\" name=\"geoip[regionName]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_cityName\" name=\"geoip[cityName]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_zipCode\" name=\"geoip[zipCode]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_latitude\" name=\"geoip[latitude]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_longitude\" name=\"geoip[longitude]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_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:\/\/it.covna-china.com\/page\/contact-us.html\" target=\"_blank\">Informativa sulla privacy<\/a><br>Diritto d'autore 2021 GuangDong COVNA Co., Ltd.<\/p>\n <\/div>\n <\/div>\n <div class=\"rightmenu\">\n <ul>\n<li 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<\/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>Richiesta rapida<\/h2>\n <form class=\"form-3b52d116d103db2f52fb4903610e2c97\" 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>Nome:<\/label> <input type=\"text\" name=\"contact[Name]\" class=\"form-control\" placeholder=\"Inserisci il tuo nome\">\n<\/div>\n <div class=\"form-group\"> <label>*E-mail:<\/label> <input type=\"email\" name=\"email\" class=\"form-control\" placeholder=\"Inserisci la tua email\" required=\"required\" pattern=\"[-\\w\\.]+@[-\\w]+(\\.[-\\w]+)+\">\n<\/div>\n <div class=\"form-group\"> <label>Telefono:<\/label> <input type=\"text\" name=\"contact[Phone]\" class=\"form-control\" placeholder=\"Inserisci il numero di telefono\" 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name=\"custom[countryCode]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_zipCode\" name=\"custom[zipCode]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_latitude\" name=\"custom[latitude]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_longitude\" name=\"custom[longitude]\" type=\"hidden\" value><input class=\"custom-ae03dcb8eaf7b97bb1132859c422e479_timeZone\" name=\"custom[timeZone]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_ipAddress\" name=\"geoip[ipAddress]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_countryName\" name=\"geoip[countryName]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_countryCode\" name=\"geoip[countryCode]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_regionName\" name=\"geoip[regionName]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_cityName\" name=\"geoip[cityName]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_zipCode\" name=\"geoip[zipCode]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_latitude\" name=\"geoip[latitude]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_longitude\" name=\"geoip[longitude]\" type=\"hidden\" value><input class=\"geo-663c40799e8ded1932de100dcf5dbedf_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, o;\n 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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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