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\n\n\n\n\n\nVanne pneumatique | COVNA\n<meta content='\"vanne' pneumatique vous voulez conna le prix de la vanne s pla contactez-nous name='\"description\"'>\n<meta content='\"vanne' pneumatique name='\"keywords\"'>\n<meta property='\"og:url\"' content='\"https:\/\/www.covna-china.com\/dlp\/pneumatic-valve.html\"'>\n<meta property='\"og:type\"' content='\"Organization\"'>\n<meta property='\"og:title\"' content='\"Vanne' pneumatique covna>\n<meta property='\"og:description\"' content='\"vanne' pneumatique vous voulez conna le prix de la vanne s pla contactez-nous>\n<meta property='\"og:image\"' content='\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/f5525800-8515-4ba5-9e16-a3f45fc539d0.png?t=1666644798&x-oss-process=image\/resize,w_500,h_500\/format,webp\"'>\n<link rel='\"preload\"' as='\"image\"' 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relative;\n overflow: hidden;\n cursor: pointer;\n display: block;\n width: 100%;\n padding: 0\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:before {\n content: ' ';\n display: block;\n padding-top: 100%\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577 a {\n position: absolute;\n top: 0;\n bottom: 0;\n left: 0;\n width: 100%;\n height: 100%;\n border: 0;\n display: block\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577 img {\n width: 100%;\n transition: all .4s ease\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577 h4 {\n font-size: 14px;\n color: #fff;\n text-transform: uppercase;\n letter-spacing: .1em;\n position: absolute;\n font-weight: 700;\n top: 50%;\n left: 50%;\n transform: translate(-50%, -50%);\n z-index: 99;\n opacity: 0;\n transition: all .4s ease\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:after {\n content: \"\";\n position: absolute;\n top: 0;\n left: 0;\n right: 0;\n bottom: 0;\n background: var(--primary);\n opacity: 0;\n transition: all .4s ease\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:hover img {\n transform: scale(1.05)\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:hover h4 {\n opacity: 1\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-image_1k55i_577:hover:after {\n opacity: .9\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-body_1k55i_245 {\n text-align: center\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-body_1k55i_245 a {\n color: #343434;\n font-size: 16px;\n line-height: 1.4;\n max-height: 2.8em;\n overflow: hidden;\n text-overflow: ellipsis\n }\n\n [digood-page-content] ._section-product_1k55i_572 ._product-item_1k55i_572 ._card-body_1k55i_245 p {\n color: #555556;\n font-size: 14px;\n line-height: 1.4;\n max-height: 4.2em;\n overflow: hidden;\n text-overflow: ellipsis\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 {\n background-color: #f8f9fa\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .tns-slider {\n display: flex\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item {\n background: #fff;\n padding: 50px 60px 0;\n height: 100%;\n cursor: pointer;\n position: relative;\n -webkit-transition: all .4s ease;\n transition: all .4s ease;\n -webkit-box-shadow: 0 10px 25px rgb(0 0 0 \/ 5%);\n box-shadow: 0 10px 25px rgb(0 0 0 \/ 5%)\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item>.icon {\n width: 120px;\n height: 120px;\n position: absolute;\n left: -15px;\n top: -30px;\n color: #0e97ff1 f\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item>p {\n font-size: 16px;\n color: #555556;\n line-height: 1.6;\n margin: 0;\n position: relative\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item .name-box {\n margin-top: 30px;\n border-top: 1px solid #fcfcfb;\n padding-top: 30px;\n padding-bottom: 60px;\n display: flex;\n align-items: center\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item .name-box .name-image {\n width: 40px;\n height: 40px;\n border-radius: 50%;\n overflow: hidden;\n text-align: center\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item .name-box .name-text {\n margin: 0 10px\n }\n\n [digood-page-content] ._section-reviews_1k55i_648 .review-item .name-box .name-title {\n margin: 0;\n font-size: 16px;\n color: var(--primary);\n font-weight: 600\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-info_1k55i_761 h5 {\n color: var(--primary);\n font-size: 14px;\n text-transform: uppercase;\n letter-spacing: 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._card-header_18vzw_353 ._icon_1k55i_658 {\n position: absolute;\n right: 0;\n font-size: 24px\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-list_18vzw_465 ._faq-item_1k55i_652 ._card-body_1k55i_245 {\n border: 0;\n padding: 0 30px 20px\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._faq-list_18vzw_465 ._faq-item_1k55i_652 ._card-body_1k55i_245 p {\n font-size: 16px;\n color: #555556\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._collapse_18vzw_331 {\n display: block;\n max-height: 0;\n overflow: hidden;\n transition: max-height .5s cubic-bezier(0, 1, 0, 1);\n transition: max-height .5s cubic-bezier(0, 1, 0, 1)\n }\n\n [digood-page-content] ._section-faq_1k55i_648 ._collapse_18vzw_331._open_18vzw_495 {\n max-height: 99em;\n transition: max-height .5s ease-in-out\n }\n\n [digood-page-content] ._section-blog_1k55i_706 {\n background-color: #fafafa\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 {\n margin-bottom: 30px\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577 {\n position: relative;\n overflow: hidden;\n cursor: pointer;\n display: block;\n width: 100%;\n padding: 0\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577:before {\n content: ' ';\n display: block;\n padding-top: 66.66%\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577 a {\n position: absolute;\n top: 0;\n bottom: 0;\n left: 0;\n width: 100%;\n height: 100%;\n border: 0;\n display: block;\n text-align: center\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577 ._date-time_1k55i_714 {\n background: #343434;\n width: 60px;\n height: 60px;\n text-align: center;\n color: #fff;\n font-size: 12px;\n font-weight: 600;\n text-transform: uppercase;\n line-height: 14px;\n border-radius: 50%;\n padding: 15px;\n position: absolute;\n top: 10px;\n left: 10px;\n z-index: 10\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-body_1k55i_245 a {\n display: block;\n font-size: 16px;\n line-height: 1.4;\n max-height: 4.2em;\n height: 4.2em;\n overflow: hidden;\n text-overflow: ellipsis;\n color: #343434;\n font-weight: 600;\n transition: all .4s ease\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-body_1k55i_245 a:hover {\n color: var(--primary)\n }\n\n [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-body_1k55i_245 p {\n font-size: 16px;\n color: #555556;\n line-height: 1.6;\n max-height: 4.8em;\n overflow: hidden;\n text-overflow: ellipsis\n }\n\n [digood-page-content] ._btn-more_1k55i_706 {\n display: inline-block;\n text-align: center;\n background-color: var(--primary);\n color: #fff;\n border-radius: 25px;\n padding: 10px 20px;\n margin-top: 30px;\n text-transform: capitalize\n }\n\n [digood-page-content] ._section-contact_1k55i_757 {\n background-color: #fff\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-info_1k55i_761 h5 {\n color: var(--primary);\n font-size: 14px;\n text-transform: uppercase;\n letter-spacing: .1em;\n font-weight: 700;\n line-height: 1em\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-info_1k55i_761 h2 {\n color: #343434;\n font-size: 36px;\n font-weight: 600;\n margin-top: 5px\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 ._form-group_1k55i_777 {\n margin-bottom: 30px\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 input,\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 textarea {\n border: none;\n outline: 0;\n background-color: transparent;\n padding: 0 15px 10px 15px;\n border-bottom: 2px solid #e4e0db;\n font-size: 18px;\n color: #555556;\n display: block;\n width: 100%\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 textarea {\n height: 90px\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 ._btn-action_1k55i_545 {\n border: none;\n outline: 0;\n padding: 0;\n background: var(--primary);\n display: inline-block;\n vertical-align: middle;\n width: 170px;\n height: 55px;\n line-height: 55px;\n text-align: center;\n font-size: 12px;\n font-weight: 700;\n letter-spacing: .1em;\n text-transform: uppercase;\n color: #fff;\n overflow: hidden;\n border: none;\n border-radius: 27.5px;\n transition: all .4s ease;\n cursor: pointer\n }\n\n [digood-page-content] ._section-contact_1k55i_757 ._contact-form_1k55i_777 ._btn-action_1k55i_545:hover {\n background-color: #343434\n }\n\n [digood-page-content] #_section-links_1k55i_757 {\n background-color: #ededed\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._section-title_1k55i_500 {\n color: #333\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-tab_13kno_350 .tab-nav .tab-link {\n color: #343434\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-tab_13kno_350 .tab-nav .tab-item.active .tab-link {\n color: var(--primary)\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-tab_13kno_350 .tab-nav .tab-item.active {\n border-color: var(--primary)\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-box_13kno_350 a {\n color: #343434\n }\n\n [digood-page-content] #_section-links_1k55i_757 ._tags-box_13kno_350 a:hover {\n color: #343434\n }\n\n [digood-page-content] #_section-links_1k55i_757 p {\n margin-bottom: 0;\n text-align: center\n }\n\n [dir=rtl] [digood-page-content] {\n text-align: right\n }\n\n [dir=rtl] [digood-page-content] ._section-header_1k55i_494 ._section-title_1k55i_498 {\n padding-left: 0;\n padding-right: 15px;\n border-left: none;\n border-right: 3px solid var(--primary);\n text-transform: capitalize\n }\n\n [dir=rtl] [digood-page-content] ._section-header_1k55i_494._center_1k55i_505 ._section-title_1k55i_498 {\n border: none\n }\n\n [dir=rtl] [digood-page-content] ._section-faq_1k55i_648 ._faq-item_1k55i_652 ._icon-box_1k55i_658 {\n right: auto;\n left: 15px\n }\n\n [dir=rtl] [digood-page-content] ._section-faq_1k55i_648 ._faq-item_1k55i_652 ._icon-box_1k55i_658:before {\n left: auto;\n right: -7px\n }\n\n [dir=rtl] [digood-page-content] ._section-blog_1k55i_706 ._blog-item_1k55i_710 ._card-image_1k55i_577 ._date-time_1k55i_714 {\n left: auto;\n right: 10px\n }\n <\/style>\n<style>\n body {\n margin: 0;\n font-family: 'Open Sans', sans-serif\n }\n\n a,\n a:hover {\n text-decoration: unset;\n color: inherit\n }\n\n .img-height {\n max-height: 100%;\n width: auto\n }\n\n .icon {\n width: 1em;\n height: 1em;\n fill: currentColor;\n vertical-align: middle\n }\n\n .container {\n width: 100%;\n padding-right: 15px;\n padding-left: 15px;\n margin-right: auto;\n margin-left: auto\n }\n\n .navbar {\n display: flex;\n justify-content: space-between;\n align-items: center\n }\n\n .header {\n background-color: #fff;\n -webkit-box-shadow: 0 0 2px rgb(0 0 0 \/ 15%);\n box-shadow: 0 0 2px rgb(0 0 0 \/ 15%)\n }\n\n .header.fixed {\n position: fixed;\n top: 0;\n right: 0;\n left: 0;\n z-index: 1050;\n -webkit-box-shadow: 0 0 16px rgb(0 0 0 \/ 32%);\n box-shadow: 0 0 16px rgb(0 0 0 \/ 32%)\n }\n\n .header .nav-logo {\n height: 80px;\n max-height: 80px;\n max-width: 300px\n }\n\n .header .nav-logo img {\n height: 100%\n }\n\n .nav-menu {\n display: none;\n align-items: center;\n list-style: none;\n margin: 0;\n padding: 0\n }\n\n .nav-menu>li>a {\n color: #555556;\n font-size: 16px;\n font-weight: 500;\n display: block;\n padding: 0 15px;\n line-height: 90px;\n text-transform: uppercase;\n -webkit-transition: all .4s ease;\n transition: all .4s ease;\n border-bottom: 2px solid transparent\n }\n\n .nav-menu>li>a.active,\n .nav-menu>li>a:hover {\n color: var(--primary);\n border-color: var(--primary)\n }\n\n .nav-menu>li:last-child>a {\n padding-right: 0\n }\n\n .fixed .nav-logo {\n height: 60px\n }\n\n .fixed .nav-menu>li>a {\n line-height: 60px\n }\n\n .footer {\n background-color: #ededed\n }\n\n .footer-bottom {\n border-top: 1px solid rgba(0, 0, 0, .05);\n padding: 30px 0\n }\n\n .footer-bottom p {\n color: #343434;\n margin: 0;\n font-size: 16px\n }\n\n .footer-bottom p a {\n color: var(--primary)\n }\n\n .cd-top {\n display: inline-block;\n height: 40px;\n z-index: 9;\n width: 40px;\n position: fixed;\n bottom: 60px;\n right: 30px;\n color: #fff;\n border-radius: 50%;\n font-size: 26px;\n text-align: center;\n background: #000;\n line-height: 34px;\n border: 2px solid #000;\n box-shadow: 0 0 10px rgb(0 0 0 \/ 5%);\n overflow: hidden;\n white-space: nowrap;\n visibility: hidden;\n opacity: 0;\n -webkit-transition: opacity .3s 0s, visibility 0s .3s;\n -moz-transition: opacity .3s 0s, visibility 0s .3s;\n transition: opacity .3s 0s, visibility 0s .3s;\n -webkit-transition: all .4s ease-in-out;\n -moz-transition: all .4s ease-in-out;\n -o-transition: all .4s ease-in-out;\n -ms-transition: all .4s ease-in-out;\n transition: all .4s ease-in-out\n }\n\n .cd-top .icon {\n width: 36px;\n height: 36px\n }\n\n .cd-top.cd-is-visible {\n visibility: visible;\n opacity: 1\n }\n\n .cd-top.cd-fade-out {\n opacity: .5\n }\n\n .cd-top:hover {\n background-color: #000;\n opacity: 1;\n color: #fff\n }\n\n [dir=rtl] .nav-menu>li:last-child>a {\n padding-left: 0\n }\n\n @media (min-width:576px) {\n .container {\n max-width: 540px\n }\n }\n\n @media (min-width:768px) {\n .container {\n max-width: 720px\n }\n\n .nav-menu {\n display: flex\n }\n }\n\n @media (min-width:992px) {\n .container {\n max-width: 960px\n }\n }\n\n @media (min-width:1200px) {\n .container {\n max-width: 1140px\n }\n }\n <\/style>\n<script type=\"application\/ld+json\">\n {\n \"@context\": \"https:\/\/schema.org\",\n \"@type\": \"Organization\",\n \"url\": \"https:\/\/www.covna-china.com\/dlp\/pneumatic-valve.html\",\n \"logo\": 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<header class=\"header\" id=\"header\"><meta http-equiv="Content-Type" content="text/html;charset=UTF-8" ><meta http-equiv=\"Content-Type\" content=\"text\/html;charset=UTF-8\">\n<div class=\"container\">\n <div class=\"navbar\">\n <div class=\"nav-logo\"> <a href=\"\/\" title=\"Retour \u00e0 la page d\u2019accueil\" target=\"_blank\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/505305f3-ddd0-45d3-9969-d4e2367e5eb9.png?t=1666644798&x-oss-process=imageh_80\/format,webp\" width=\"200\" height=\"80\" alt=\"COVNA\" class=\"img-height\"><\/a> <\/div>\n <ul class=\"nav-menu\" id=\"nav-menu\">\n<li class=\"menu-item\"><a class=\"menu-item-link\" href=\"\/\">Domicile<\/a><\/li>\n <li class=\"menu-item\">\n<a class=\"menu-item-link\" href=\"https:\/\/fr.covna-china.com\/page\/about-us.html\">ENVIRON<\/a> <\/li>\n <li class=\"menu-item\">\n<a class=\"menu-item-link\" href=\"https:\/\/fr.covna-china.com\/products\/all.html\">PRODUITS<\/a> <\/li>\n <li 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<h1 class=\"_section-title_1k55i_498\">Introduction \u00e0 la vanne pneumatique<\/h1>\n <\/div>\n <div class=\"_text_1k55i_498\">\n <p>Les vannes pneumatiques sont des vannes entra\u00een\u00e9es par de l\u2019air comprim\u00e9. Lors de l\u2019achat de vannes pneumatiques, seules les sp\u00e9cifications, les cat\u00e9gories et les pressions de service peuvent \u00eatre sp\u00e9cifi\u00e9es pour r\u00e9pondre aux exigences d\u2019approvisionnement. Il peut \u00eatre utilis\u00e9 pour contr\u00f4ler divers types de fluides tels que l\u2019air, l\u2019eau, la vapeur, divers milieux corrosifs, la boue, l\u2019huile, le m\u00e9tal liquide et les milieux radioactifs. couler.<\/p>\n <\/div> <a href=\"#section-contact\" class=\"_btn-action_1k55i_545 _btn-scroll_1k55i_778\" name=\"btn-section-home\">Obtenir un devis<\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section id=\"section-features\" class=\"_section-padding_1k55i_514 _section-features_1k55i_648\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h5 class=\"_section-subtitle_1k55i_498\">Fonctionnalit\u00e9s<\/h5>\n <h2 class=\"_section-title_1k55i_498\">Pourquoi choisir COVNA?<\/h2>\n <\/div>\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"feature-item\">\n <div class=\"icon-box\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/3d822ab9-e000-4f57-967a-3b6250509c96.png?t=1666644798&x-oss-process=image\/resize,w_60,h_60\/format,webp\" width=\"60\" height=\"60\" alt=\"Artisanat exquis\" class=\"_img-fluid_1k55i_123\">\n<\/div>\n <h3 class=\"feature-title\">Artisanat exquis<\/h3>\n <p class=\"feature-text\">Restez fid\u00e8le \u00e0 l\u2019esprit d\u2019ing\u00e9niosit\u00e9 Usinage de pr\u00e9cision CNC 20 ans de conseils d\u2019ing\u00e9nieurs techniques<\/p>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"feature-item\">\n <div class=\"icon-box\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/9034508c-1340-44a6-9dfa-9ffe4770ea61.png?t=1666644798&x-oss-process=image\/resize,w_60,h_60\/format,webp\" width=\"60\" height=\"60\" alt=\"Innovation technologique\" class=\"_img-fluid_1k55i_123\">\n<\/div>\n <h3 class=\"feature-title\">Innovation technologique<\/h3>\n <p class=\"feature-text\">Fondation high-tech Insister sur l\u2019innovation et le d\u00e9veloppement \u00c9quipe de talents techniques seniors<\/p>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"feature-item\">\n <div class=\"icon-box\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/081974ab-1a15-400b-8134-5c2cf3ece550.png?t=1666644798&x-oss-process=image\/resize,w_60,h_60\/format,webp\" width=\"60\" height=\"60\" alt=\"Sp\u00e9cial personnalis\u00e9\" class=\"_img-fluid_1k55i_123\">\n<\/div>\n <h3 class=\"feature-title\">Sp\u00e9cial personnalis\u00e9<\/h3>\n <p class=\"feature-text\">Couple jusqu\u2019\u00e0 4678nm S\u00e9lection du guide technique senior Personnalisation sp\u00e9ciale selon les besoins du client<\/p>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"feature-item\">\n <div class=\"icon-box\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/b6edcc07-4ced-4b4f-abad-ef78d2138d9f.png?t=1666644798&x-oss-process=image\/resize,w_60,h_60\/format,webp\" width=\"60\" height=\"60\" alt=\"Qualit\u00e9 constante\" class=\"_img-fluid_1k55i_123\">\n<\/div>\n <h3 class=\"feature-title\">Qualit\u00e9 constante<\/h3>\n <p class=\"feature-text\">Certification internationale ISO9001 Adh\u00e9rer \u00e0 des processus de production standardis\u00e9s 1 million de cycles test de durabilit\u00e9<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section id=\"section-about\" class=\"_section-about_1k55i_568 _section-padding_1k55i_514\"><div class=\"_container_1k55i_128\">\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-6_1k55i_172\">\n <div class> <img class=\"_img-fluid_1k55i_123\" src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/99ac43d0-bdbb-454e-a69b-a19e36009343.png?t=1666644798&x-oss-process=image\/resize,w_600,h_338\/format,webp\" alt=\"\u00e0 propos de COVNA\" width=\"560\" height=\"315\">\n<\/div>\n <\/div>\n <div class=\"_col-md-6_1k55i_172\">\n <div class>\n <div class=\"_section-header_1k55i_494\">\n <h2 class=\"_section-title_1k55i_498\">Nous avons les meilleures solutions pour votre entreprise<\/h2>\n <\/div>\n <div class=\"_text_1k55i_498\">\n <p>COVNA Industrial Automation Co., Ltd. a \u00e9t\u00e9 cr\u00e9\u00e9e en 2000, un sp\u00e9cialiste des vannes automatis\u00e9es. Bas\u00e9 \u00e0 Dongguan en Chine, avec 3 bases de production situ\u00e9es \u00e0 Ningbo, Wenzhou et Dongguan.<\/p>\n <p>Nous fournissons une vanne \u00e9lectrique, une \u00e9lectrovanne, une vanne pneumatique, une vanne \u00e0 grille \u00e9lectrique, une vanne papillon \u00e9lectrique, une vanne de contr\u00f4le pneumatique, une vanne motoris\u00e9e, une vanne \u00e0 grille \u00e0 couteau pneumatique, une vanne \u00e0 commande pneumatique, une vanne \u00e0 commande pneumatique, une vanne \u00e0 boisseau sph\u00e9rique motoris\u00e9e, une vanne \u00e0 boisseau sph\u00e9rique \u00e9lectrique, une vanne \u00e0 boisseau sph\u00e9rique, une vanne \u00e0 grille, une vanne \u00e0 grille, une vanne \u00e0 papillon, une vanne \u00e0 globe, etc., Vous pouvez parcourir les produits connexes et lancer des consultations sur notre site Web.<\/p>\n <\/div> <a href=\"https:\/\/fr.covna-china.com\/page\/about-us.html\" class=\"btn _btn-more_1k55i_706\" name=\"btn-section-about\">Lire la suite<\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section class=\"_section-block_1k55i_573 _section-padding_1k55i_514\"><div class=\"_container_1k55i_128\">\n <h2 style=\"text-align:center\">Le principe de fonctionnement de la vanne de r\u00e9gulation pneumatique<\/h2>\n <p>La vanne de commande pneumatique est compos\u00e9e d\u2019un actionneur et d\u2019un m\u00e9canisme de r\u00e9glage. L\u2019actionneur est le composant de pouss\u00e9e de la vanne de r\u00e9gulation, qui g\u00e9n\u00e8re une pouss\u00e9e correspondante en fonction de la pression du signal de commande pour pousser le m\u00e9canisme de r\u00e9gulation en action. Le corps de la vanne est le composant r\u00e9gulateur de la vanne de r\u00e9gulation pneumatique, qui entre directement en contact avec le milieu r\u00e9gulateur pour r\u00e9guler le d\u00e9bit du fluide.<\/p>\n <\/div>\n <\/section><section id=\"section-products\" class=\"_section-padding_1k55i_514 _section-product_1k55i_572\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h5 class=\"_section-subtitle_1k55i_498\">Produits en vedette<\/h5>\n <h2 class=\"_section-title_1k55i_498\">Collection sur COVNA<\/h2>\n <\/div>\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/hard-seal-flange-three-eccentric-pneumatic-butterfly-valve.html\" title=\"Bride d\u2019\u00e9tanch\u00e9it\u00e9 dure Trois vannes papillon pneumatiques excentriques\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1639993251_Hard-Seal-Pneumatic-Flange-Three-Eccentric-Butterfly_yythk.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"Bride d\u2019\u00e9tanch\u00e9it\u00e9 dure Trois vannes papillon pneumatiques excentriques\" class=\"_img-fluid_1k55i_123\"><h4>Voir les d\u00e9tails<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/hard-seal-flange-three-eccentric-pneumatic-butterfly-valve.html\">Bride d\u2019\u00e9tanch\u00e9it\u00e9 dure Trois vannes papillon pneumatiques excentriques<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/covna-hk59-d-kitz-aluminum-alloy-wafer-air-operated-butterfly-valve.html\" title=\"COVNA HK59-D-KITZ Alliage d\u2019aluminium Plaquette Air pneumatique Papillon Valve\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1639728890_COVNA-HK59-D-S-Stainless-Steel-Pneumatic-Actuated-Butterfl-(1).jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"COVNA HK59-D-KITZ Alliage d\u2019aluminium Plaquette Air pneumatique Papillon Valve\" class=\"_img-fluid_1k55i_123\"><h4>Voir les d\u00e9tails<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/covna-hk59-d-kitz-aluminum-alloy-wafer-air-operated-butterfly-valve.html\">COVNA HK59-D-KITZ Alliage d\u2019aluminium Plaquette Air pneumatique Papillon Valve<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/din-jis-10k-gost-cast-steel-flange-pneumatic-knife-gate-valve.html\" title=\"DIN JIS 10K ANSI Gost Bride en acier coul\u00e9 Vanne de grille de couteau pneumatique\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1638501004_1.DIN-JIS-10K-ANSI-Gost-Cast-Steel-Flange-Pneumatic-Knife-Gate-Valve.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"DIN JIS 10K ANSI Gost Bride en acier coul\u00e9 Vanne de grille de couteau pneumatique\" class=\"_img-fluid_1k55i_123\"><h4>Voir les d\u00e9tails<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/din-jis-10k-gost-cast-steel-flange-pneumatic-knife-gate-valve.html\">DIN JIS 10K ANSI Gost Bride en acier coul\u00e9 Vanne de grille de couteau pneumatique<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/pneumatic-Cylinder-Linear-knife-gate-valve.html\" title=\"SS 316 Cylindre pneumatique Actionneur lin\u00e9aire Vanne \u00e0 grille de couteau\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1638499804_SS-316-Pneumatic-Cylinder-Linear-Actuator-Knife-Edg.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"SS 316 Cylindre pneumatique Actionneur lin\u00e9aire Vanne \u00e0 grille de couteau\" class=\"_img-fluid_1k55i_123\"><h4>Voir les d\u00e9tails<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/pneumatic-Cylinder-Linear-knife-gate-valve.html\">SS 316 Cylindre pneumatique Actionneur lin\u00e9aire Vanne \u00e0 grille de couteau<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/covna-hk57-t-double-union-pvc-3-way-pneumatic-actuator-ball-valve.html\" title=\"COVNA HK57-T Double Union PVC 3 voies Actionneur pneumatique Vanne \u00e0 boisseau sph\u00e9rique\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1644575004_HK57-Pneumatic-Plastic-Ball-Valve-3.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"COVNA HK57-T Double Union PVC 3 voies Actionneur pneumatique Vanne \u00e0 boisseau sph\u00e9rique\" class=\"_img-fluid_1k55i_123\"><h4>Voir les d\u00e9tails<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/covna-hk57-t-double-union-pvc-3-way-pneumatic-actuator-ball-valve.html\">COVNA HK57-T Double Union PVC 3 voies Actionneur pneumatique Vanne \u00e0 boisseau sph\u00e9rique<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/covna-hk55-3ps-f-series-pneumatic-3-pieces-flanged-ball-valve.html\" title=\"COVNA HK55-3PS-F S\u00e9rie Pneumatique 3 Pi\u00e8ces Vanne \u00e0 boisseau sph\u00e9rique \u00e0 bride\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1639019065_HK55F-3PS%E7%B3%BB%E5%88%97-%E6%B0%94%E5%8A%A8%E4%B8%89%E7%89%87%E5%BC%8F%E6%B3%95%E5%85%B0%E7%90%83%E9%98%80.jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"COVNA HK55-3PS-F S\u00e9rie Pneumatique 3 Pi\u00e8ces Vanne \u00e0 boisseau sph\u00e9rique \u00e0 bride\" class=\"_img-fluid_1k55i_123\"><h4>Voir les d\u00e9tails<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/covna-hk55-3ps-f-series-pneumatic-3-pieces-flanged-ball-valve.html\">COVNA HK55-3PS-F S\u00e9rie Pneumatique 3 Pi\u00e8ces Vanne \u00e0 boisseau sph\u00e9rique \u00e0 bride<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/covna-hk56w-2-way-pneumatic-operated-sanitary-ball-valve.html\" title=\"COVNA HK56W Vanne \u00e0 boisseau sph\u00e9rique sanitaire pneumatique 2 voies\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1639015324_%E6%B0%94%E5%8A%A8%E5%8D%AB%E7%94%9F%E7%BA%A7%E4%B8%A4%E9%80%9A%E7%90%83%E9%98%80-(2).jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"COVNA HK56W Vanne \u00e0 boisseau sph\u00e9rique sanitaire pneumatique 2 voies\" class=\"_img-fluid_1k55i_123\"><h4>Voir les d\u00e9tails<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/covna-hk56w-2-way-pneumatic-operated-sanitary-ball-valve.html\">COVNA HK56W Vanne \u00e0 boisseau sph\u00e9rique sanitaire pneumatique 2 voies<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-3_1k55i_169\">\n <div class=\"_product-item_1k55i_572 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/product\/covna-hk55-f-series-pneumatic-flange-ball-valve.html\" title=\"Vanne \u00e0 boisseau sph\u00e9rique \u00e0 bride pneumatique de la s\u00e9rie COVNA HK55-F\"> <img src=\"\/\/upload.digoodcms.com\/728\/image_1638761842_2.-COVNA-HK55-F-Series-Pneumatic-Flange-Ball-Valve-(6).jpg?imageView2\/1\/w\/450\/h\/450\/format\/webp\" width=\"450\" height=\"450\" alt=\"Vanne \u00e0 boisseau sph\u00e9rique \u00e0 bride pneumatique de la s\u00e9rie COVNA HK55-F\" class=\"_img-fluid_1k55i_123\"><h4>Voir les d\u00e9tails<\/h4>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/product\/covna-hk55-f-series-pneumatic-flange-ball-valve.html\">Vanne \u00e0 boisseau sph\u00e9rique \u00e0 bride pneumatique de la s\u00e9rie COVNA HK55-F<\/a> <\/h4>\n <p style=\"text-align:left\"><\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"text-center\"> <a href=\"https:\/\/fr.covna-china.com\/products\/all.html\" class=\"btn _btn-more_1k55i_706\" name=\"btn-section-products\">Voir plus<\/a> <\/div>\n <\/div>\n <\/section><section id=\"section-reviews\" class=\"_section-padding_1k55i_514 _section-reviews_1k55i_648 scrollspy\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h5 class=\"_section-subtitle_1k55i_498\">Avis d\u2019utilisateurs<\/h5>\n <h2 class=\"_section-title_1k55i_498\">Ce que les utilisateurs disent de COVNA<\/h2>\n <\/div>\n <div class=\"_slider-wrap_1k55i_471\">\n <div class=\"slider-reviews\">\n <div class=\"slider-item\">\n <div class=\"review-item\"> <svg class=\"icon\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\"><path fill=\"currentColor\" d=\"M10,7L8,11H11V17H5V11L7,7H10M18,7L16,11H19V17H13V11L15,7H18Z\"><\/path><\/svg><p>La fabrication est en place, et la qualit\u00e9 est tr\u00e8s bonne en un coup d\u2019\u0153il!<\/p>\n <div class=\"name-box\">\n <div class=\"name-text\">\n <h5 class=\"name-title\">Lion<\/h5>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"slider-item\">\n <div class=\"review-item\"> <svg class=\"icon\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\"><path fill=\"currentColor\" d=\"M10,7L8,11H11V17H5V11L7,7H10M18,7L16,11H19V17H13V11L15,7H18Z\"><\/path><\/svg><p>Clients r\u00e9guliers, la coop\u00e9ration a \u00e9t\u00e9 tr\u00e8s heureuse!<\/p>\n <div class=\"name-box\">\n <div class=\"name-text\">\n <h5 class=\"name-title\">Mondes<\/h5>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"slider-item\">\n <div class=\"review-item\"> <svg class=\"icon\" width=\"24\" height=\"24\" viewbox=\"0 0 24 24\"><path fill=\"currentColor\" d=\"M10,7L8,11H11V17H5V11L7,7H10M18,7L16,11H19V17H13V11L15,7H18Z\"><\/path><\/svg><p>La finition est fine, la taille est correcte, le design est en place et le service est attentif et attentionn\u00e9!<\/p>\n <div class=\"name-box\">\n <div class=\"name-text\">\n <h5 class=\"name-title\">Kepler<\/h5>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section id=\"section-faq\" class=\"_section-padding_1k55i_514 _section-faq_1k55i_648\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h5 class=\"_section-subtitle_1k55i_498\">Foire aux questions<\/h5>\n <h2 class=\"_section-title_1k55i_498\">Avez-vous des questions?<\/h2>\n <\/div>\n <div class=\"_faq-list_18vzw_465\" itemscope itemtype=\"https:\/\/schema.org\/FAQPage\">\n <div class=\"_card_1k55i_233 _faq-item_1k55i_652\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n <div class=\"_card-header_18vzw_353\">\n <h4> <a data-toggle=\"faq_collapse\" href=\"#faq0\"> <span itemprop=\"name\">Qu\u2019est-ce qu\u2019une vanne pneumatique et quelle est sa fonction ?<\/span> <svg class=\"_icon_1k55i_658\" viewbox=\"0 0 24 24\"><path d=\"M7.41,8.58L12,13.17L16.59,8.58L18,10L12,16L6,10L7.41,8.58Z\"><\/path><\/svg><\/a> <\/h4>\n <\/div>\n <div itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"faq0\" class=\"_collapse_18vzw_331 _open_18vzw_495\">\n <div class=\"_card-body_1k55i_245\">\n <p itemprop=\"text\">Qu\u2019est-ce qu\u2019une vanne pneumatique et quelle est la fonction de la vanne pneumatique Une vanne pneumatique est \u00e9galement connue sous le nom de vannes de r\u00e9gulation directionnelle, la fonction principale d\u2019une vanne pneumatique est de commuter le flux d\u2019air. Ces vannes sont capables de maintenir la pression. La gamme de vannes pneumatiques est vaste et il existe de nombreuses cat\u00e9gories de vannes pneumatiques.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_card_1k55i_233 _faq-item_1k55i_652\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n <div class=\"_card-header_18vzw_353\">\n <h4> <a data-toggle=\"faq_collapse\" href=\"#faq1\"> <span itemprop=\"name\">O\u00f9 les vannes pneumatiques sont-elles utilis\u00e9es?<\/span> <svg class=\"_icon_1k55i_658\" viewbox=\"0 0 24 24\"><path d=\"M7.41,8.58L12,13.17L16.59,8.58L18,10L12,16L6,10L7.41,8.58Z\"><\/path><\/svg><\/a> <\/h4>\n <\/div>\n <div itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"faq1\" class=\"_collapse_18vzw_331\">\n <div class=\"_card-body_1k55i_245\">\n <p itemprop=\"text\">La pneumatique est \u00e9galement utilis\u00e9e dans les vannes de r\u00e9gulation, la pneumatique a de nombreuses applications dans diff\u00e9rentes industries. Il a \u00e9galement d\u2019autres applications telles que la dentisterie, la construction et l\u2019exploitation mini\u00e8re.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_card_1k55i_233 _faq-item_1k55i_652\" itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\">\n <div class=\"_card-header_18vzw_353\">\n <h4> <a data-toggle=\"faq_collapse\" href=\"#faq2\"> <span itemprop=\"name\">Principe de fonctionnement de la vanne pneumatique<\/span> <svg class=\"_icon_1k55i_658\" viewbox=\"0 0 24 24\"><path d=\"M7.41,8.58L12,13.17L16.59,8.58L18,10L12,16L6,10L7.41,8.58Z\"><\/path><\/svg><\/a> <\/h4>\n <\/div>\n <div itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" id=\"faq2\" class=\"_collapse_18vzw_331\">\n <div class=\"_card-body_1k55i_245\">\n <p itemprop=\"text\">L\u2019actionneur pneumatique utilise de l\u2019air comprim\u00e9 comme source d\u2019alimentation, et le mouvement du piston entra\u00eene le bras de manivelle \u00e0 tourner \u00e0 90 degr\u00e9s, de sorte que la vanne peut \u00eatre ouverte et ferm\u00e9e automatiquement. Ses composants sont: boulon de r\u00e9glage, bo\u00eete d\u2019actionneur, bras de manivelle, bloc-cylindre, arbre de cylindre, piston, bielle, arbre de cardan.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/section><section id=\"section-news\" class=\"_section-padding_1k55i_514 _section-blog_1k55i_706\"><div class=\"_container_1k55i_128\">\n <div class=\"_section-header_1k55i_494 _center_1k55i_505\">\n <h2 class=\"_section-title_1k55i_498\">Nos mises \u00e0 jour et articles de blog<\/h2>\n <\/div>\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-4_1k55i_170\">\n <div class=\"_blog-item_1k55i_710 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/article\/where-the-butterfly-valve-is-applicable.html\" title=\"| \u00e0 valve pneumatique Lorsque la vanne papillon est applicable\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/6148e12e-dcc5-419e-99f8-6df68fa341e8.png?t=1666644798&x-oss-process=image\/resize,w_600,h_400\/format,webp\" width=\"600\" height=\"400\" alt=\"| \u00e0 valve pneumatique Lorsque la vanne papillon est applicable\" class=\"_img-fluid_1k55i_123\"><div class=\"_date-time_1k55i_714\">23 D\u00e9c<\/div>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/article\/where-the-butterfly-valve-is-applicable.html\">| \u00e0 valve pneumatique Lorsque la vanne papillon est applicable<\/a> <\/h4>\n <p>{mot-cl\u00e9},Les vannes papillon conviennent \u00e0 la r\u00e9gulation du d\u00e9bit. \u00c9tant donn\u00e9 que la perte de pression de la vanne papillon dans le pipeline est relativement importante, elle est environ trois fois sup\u00e9rieure \u00e0 celle de la vanne \u00e0 grille.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-4_1k55i_170\">\n <div class=\"_blog-item_1k55i_710 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/article\/how-to-choose-electric-butterfly-valve.html\" title=\"| \u00e0 valve pneumatique Comment choisir la vanne papillon \u00e9lectrique\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/2a542176-508c-49dd-a5f7-f6a7bcb17035.png?t=1666644798&x-oss-process=image\/resize,w_600,h_400\/format,webp\" width=\"600\" height=\"400\" alt=\"| \u00e0 valve pneumatique Comment choisir la vanne papillon \u00e9lectrique\" class=\"_img-fluid_1k55i_123\"><div class=\"_date-time_1k55i_714\">23 D\u00e9c<\/div>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/article\/how-to-choose-electric-butterfly-valve.html\">| \u00e0 valve pneumatique Comment choisir la vanne papillon \u00e9lectrique<\/a> <\/h4>\n <p>{mot-cl\u00e9}. Le disque de la vanne papillon est que le disque a un arbre tournant sur la position du si\u00e8ge de la vanne. L\u2019angle de rotation d\u00e9termine le degr\u00e9 d\u2019ouverture et de fermeture de la vanne.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"_col-md-4_1k55i_170\">\n <div class=\"_blog-item_1k55i_710 _card_1k55i_233\">\n <div class=\"_card-image_1k55i_577\"> <a href=\"\/article\/gate-valve-movement.html\" title=\"| \u00e0 valve pneumatique Mouvement de vanne\"> <img src=\"https:\/\/seo-console-assets.goalsites.com\/uploads\/covna-china_com\/e904918a-1de8-4300-a2ea-5122a34471d6.png?t=1666644798&x-oss-process=image\/resize,w_600,h_400\/format,webp\" width=\"600\" height=\"400\" alt=\"| \u00e0 valve pneumatique Mouvement de vanne\" class=\"_img-fluid_1k55i_123\"><div class=\"_date-time_1k55i_714\">08 janv.<\/div>\n <\/a> <\/div>\n <div class=\"_card-body_1k55i_245\">\n <h4> <a href=\"\/article\/gate-valve-movement.html\">| \u00e0 valve pneumatique Mouvement de vanne<\/a> <\/h4>\n <p>{mot-cl\u00e9},La plupart des vannes \u00e0 vanne sont scell\u00e9es de force, c\u2019est-\u00e0-dire que lorsque la vanne est ferm\u00e9e, la vanne doit \u00eatre forc\u00e9e contre le si\u00e8ge de la vanne par une force externe pour assurer l\u2019\u00e9tanch\u00e9it\u00e9 de la surface d\u2019\u00e9tanch\u00e9it\u00e9.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <div class=\"text-center\"> <a href=\"https:\/\/fr.covna-china.com\/articles\/all.html\" class=\"btn _btn-more_1k55i_706\" name=\"btn-section-news\">Lire la suite<\/a> <\/div>\n <\/div>\n <\/section><section class=\"_section-contact_1k55i_757 _section-padding_1k55i_514\" id=\"section-contact\"><div class=\"_container_1k55i_128\">\n <div class=\"_row_1k55i_160\">\n <div class=\"_col-md-5_1k55i_171\">\n <div class=\"_contact-info_1k55i_761\">\n <h5>Contat Us<\/h5>\n <h2 class=\"_section-title_1k55i_498\">Avez-vous des questions? 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