{"id":513,"date":"2026-04-16T10:10:10","date_gmt":"2026-04-16T02:10:10","guid":{"rendered":"https:\/\/www.yayevalve.com\/?post_type=product&#038;p=513"},"modified":"2026-04-16T11:03:56","modified_gmt":"2026-04-16T03:03:56","slug":"gb-cast-ductile-iron-blind-gate-valve","status":"publish","type":"product","link":"https:\/\/www.yayevalve.com\/fr\/product\/gb-cast-ductile-iron-blind-gate-valve\/","title":{"rendered":"Vanne \u00e0 opercule en fonte ductile GB"},"content":{"rendered":"<h2>Caract\u00e9ristiques structurelles de<\/h2>\n<ul>\n<li data-start=\"158\" data-end=\"313\">\n<p data-start=\"664\" data-end=\"910\">Utilisant une <b data-path-to-node=\"10,1,0\" data-index-in-node=\"21\">configuration \u00e0 tige non montante (NRS)<\/b> conception, la tige ne tourne que sans mouvement vertical pendant le fonctionnement. Cela garantit que la hauteur totale reste constante, r\u00e9duisant consid\u00e9rablement les exigences d'espace libre, ce qui la rend id\u00e9ale pour <b data-path-to-node=\"10,1,0\" data-index-in-node=\"234\">les pipelines souterrains, les armoires de service enterr\u00e9es<\/b>, ou les salles de pompes avec un espace sous plafond restreint.<\/p>\n<\/li>\n<li data-start=\"315\" data-end=\"481\">\n<p data-start=\"317\" data-end=\"481\">Le corps est fabriqu\u00e9 en <b data-path-to-node=\"12,1,0\" data-index-in-node=\"34\">Fonte ductile QT450<\/b>, offrant des propri\u00e9t\u00e9s m\u00e9caniques similaires \u00e0 celles de l'acier au carbone avec une excellente r\u00e9sistance \u00e0 la traction et un bon allongement. Face \u00e0 <b data-path-to-node=\"12,1,0\" data-index-in-node=\"173\">un tassement du sol ou des charges de trafic<\/b>, le corps de la vanne peut amortir la d\u00e9formation gr\u00e2ce \u00e0 sa t\u00e9nacit\u00e9 intrins\u00e8que, emp\u00eachant les fractures fragiles courantes dans la fonte grise et assurant la s\u00e9curit\u00e9 du syst\u00e8me \u00e0 long terme.<\/p>\n<\/li>\n<li data-start=\"483\" data-end=\"649\">\n<p data-start=\"1308\" data-end=\"1555\">Le coin est dot\u00e9 d'un <b data-path-to-node=\"14,1,0\" data-index-in-node=\"28\">encapsulage complet en caoutchouc EPDM<\/b>, utilisant une d\u00e9formation r\u00e9siliente pour cr\u00e9er une \u00e9tanch\u00e9it\u00e9 parfaite contre le si\u00e8ge de vanne plat. Cette conception d\u201c\u201d \u00e9tanch\u00e9it\u00e9 souple \u00bb permet une fermeture \u00e9tanche bidirectionnelle et emp\u00eache efficacement les d\u00e9faillances de fermeture caus\u00e9es par <b data-path-to-node=\"14,1,0\" data-index-in-node=\"266\">accumulation de s\u00e9diments<\/b>, un probl\u00e8me courant dans les vannes traditionnelles \u00e0 si\u00e8ge m\u00e9tallique.<\/p>\n<\/li>\n<li data-start=\"651\" data-end=\"843\">\n<p data-start=\"978\" data-end=\"1166\">Les surfaces internes et externes sont rev\u00eatues d'au moins 250 \u00b5m de <b data-path-to-node=\"16,1,0\" data-index-in-node=\"79\">poudre d'\u00e9poxy fusionn\u00e9e (FBE)<\/b>, formant une couche protectrice lisse et tr\u00e8s adh\u00e9rente. Ce processus r\u00e9pond <b data-path-to-node=\"16,1,0\" data-index-in-node=\"187\">les normes d'hygi\u00e8ne de l'eau potable<\/b>, emp\u00eache la contamination secondaire, et sa finition lisse r\u00e9duit la r\u00e9sistance du fluide tout en inhibant la fixation du tartre au fil du temps.<\/p>\n<\/li>\n<li data-start=\"845\" data-end=\"1043\">\n<p data-start=\"1361\" data-end=\"1847\">La cavit\u00e9 interne est dot\u00e9e de <b data-path-to-node=\"18,1,0\" data-index-in-node=\"53\">rails de guidage lat\u00e9raux<\/b> moul\u00e9s avec pr\u00e9cision qui maintiennent l'alignement du coin pendant le d\u00e9placement. Cette conception de rail de guidage r\u00e9duit la friction m\u00e9canique entre le coin et le si\u00e8ge, ce qui, combin\u00e9 \u00e0 l'\u00e9crou de tige de haute pr\u00e9cision, assure <b data-path-to-node=\"18,1,0\" data-index-in-node=\"252\">un faible couple de fonctionnement<\/b> m\u00eame pour les vannes de grand diam\u00e8tre, prolongeant la dur\u00e9e de vie du m\u00e9canisme de fonctionnement.<\/p>\n<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-515 size-full\" src=\"https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/04\/556.png\" alt=\"\" width=\"519\" height=\"646\" srcset=\"https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/04\/556.png 519w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/04\/556-402x500.png 402w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/04\/556-241x300.png 241w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/04\/556-10x12.png 10w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/04\/556-60x75.png 60w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2026\/04\/556-480x597.png 480w\" sizes=\"auto, (max-width:767px) 480px, 519px\" \/><\/p>\n<h2>Mat\u00e9riaux des composants principaux<\/h2>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr>\n<th>NON<\/th>\n<th>Pi\u00e8ce<\/th>\n<th>Mat\u00e9riaux<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>6<\/td>\n<td>Bonnette<\/td>\n<td>QT450-10<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>Tige<\/td>\n<td>2Cr13<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Vis<\/td>\n<td>6.8<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Calage<\/td>\n<td>NBR<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Disque<\/td>\n<td>QT450-10+EPDM<\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>Corps<\/td>\n<td>QT450-10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Dimensions de la connexion principale Classe 150LB<\/h2>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"8\">\n<thead>\n<tr>\n<th>DN<\/th>\n<th>L<\/th>\n<th>D<\/th>\n<th>K<\/th>\n<th>d<\/th>\n<th>C<\/th>\n<th>f<\/th>\n<th>n-\u03a6<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>50<\/td>\n<td>175<\/td>\n<td>165<\/td>\n<td>125<\/td>\n<td>102<\/td>\n<td>18<\/td>\n<td>2<\/td>\n<td>4-\u03a618<\/td>\n<\/tr>\n<tr>\n<td>65<\/td>\n<td>185<\/td>\n<td>185<\/td>\n<td>145<\/td>\n<td>122<\/td>\n<td>20<\/td>\n<td>2<\/td>\n<td>4-\u03a618<\/td>\n<\/tr>\n<tr>\n<td>80<\/td>\n<td>195<\/td>\n<td>200<\/td>\n<td>160<\/td>\n<td>138<\/td>\n<td>20<\/td>\n<td>2<\/td>\n<td>8-\u03a618<\/td>\n<\/tr>\n<tr>\n<td>100<\/td>\n<td>225<\/td>\n<td>220<\/td>\n<td>180<\/td>\n<td>158<\/td>\n<td>22<\/td>\n<td>2<\/td>\n<td>8-\u03a618<\/td>\n<\/tr>\n<tr>\n<td>125<\/td>\n<td>245<\/td>\n<td>250<\/td>\n<td>210<\/td>\n<td>188<\/td>\n<td>22<\/td>\n<td>2<\/td>\n<td>8-\u03a618<\/td>\n<\/tr>\n<tr>\n<td>150<\/td>\n<td>255<\/td>\n<td>285<\/td>\n<td>240<\/td>\n<td>212<\/td>\n<td>24<\/td>\n<td>2<\/td>\n<td>8-\u03a622<\/td>\n<\/tr>\n<tr>\n<td>200<\/td>\n<td>285<\/td>\n<td>340<\/td>\n<td>295<\/td>\n<td>268<\/td>\n<td>26<\/td>\n<td>2<\/td>\n<td>12-\u03a622<\/td>\n<\/tr>\n<tr>\n<td>250<\/td>\n<td>325<\/td>\n<td>405<\/td>\n<td>355<\/td>\n<td>320<\/td>\n<td>29<\/td>\n<td>2<\/td>\n<td>12-\u03a626<\/td>\n<\/tr>\n<tr>\n<td>300<\/td>\n<td>350<\/td>\n<td>460<\/td>\n<td>410<\/td>\n<td>378<\/td>\n<td>32<\/td>\n<td>2<\/td>\n<td>12-\u03a626<\/td>\n<\/tr>\n<tr>\n<td>350<\/td>\n<td>385<\/td>\n<td>520<\/td>\n<td>470<\/td>\n<td>430<\/td>\n<td>35<\/td>\n<td>2<\/td>\n<td>16-\u03a626<\/td>\n<\/tr>\n<tr>\n<td>400<\/td>\n<td>397<\/td>\n<td>580<\/td>\n<td>525<\/td>\n<td>490<\/td>\n<td>38<\/td>\n<td>2<\/td>\n<td>16-\u03a630<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Pourquoi choisir YAYE<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-67 size-full\" src=\"https:\/\/yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE.webp\" alt=\"\" width=\"2076\" height=\"1253\" srcset=\"https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE.webp 2076w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-800x483.webp 800w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-500x302.webp 500w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-1200x724.webp 1200w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-300x181.webp 300w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-768x464.webp 768w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-1536x927.webp 1536w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-2048x1236.webp 2048w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-124x75.webp 124w, https:\/\/www.yayevalve.com\/wp-content\/uploads\/2025\/12\/YIYE-480x290.webp 480w\" sizes=\"auto, (max-width:767px) 480px, (max-width:2076px) 100vw, 2076px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>Strictement con\u00e7u conform\u00e9ment aux normes GB\/T 12232, ce <b data-path-to-node=\"1\" data-index-in-node=\"66\">robinet \u00e0 soupape \u00e0 passage int\u00e9gral en fonte ductile GB \u00e0 tige non montante (NRS)<\/b> constitue une solution de premier ordre pour la distribution d'eau municipale, la protection incendie et les infrastructures CVC. Le corps est moul\u00e9 avec pr\u00e9cision en fonte ductile de haute qualit\u00e9 QT450-10, offrant une r\u00e9sistance \u00e0 la traction et une r\u00e9silience sup\u00e9rieures par rapport \u00e0 la fonte traditionnelle, ce qui garantit l'int\u00e9grit\u00e9 structurelle contre les contraintes de la conduite et les effets de coup de b\u00e9lier. La <b data-path-to-node=\"1\" data-index-in-node=\"469\">configuration \u00e0 tige non montante (NRS)<\/b> est sp\u00e9cialement con\u00e7ue pour les installations o\u00f9 l'espace est limit\u00e9, car la tige tourne sans d\u00e9placement vertical, prot\u00e9geant ainsi les filetages de la corrosion environnementale et des impacts m\u00e9caniques. Son \u00e9tanch\u00e9it\u00e9 centrale utilise une technologie de coin r\u00e9silient enti\u00e8rement encapsul\u00e9 associ\u00e9e \u00e0 un passage d'\u00e9coulement profil\u00e9 \u00e0 fond plat, permettant des performances hydrauliques sans s\u00e9diments et une fermeture \u00e9tanche fiable et bidirectionnelle. De plus, les surfaces internes et externes sont trait\u00e9es avec un rev\u00eatement \u00e9poxy \u00e9lectrostatique robuste de qualit\u00e9 alimentaire (\u2265250\u03bcm), offrant une barri\u00e8re anticorrosion exceptionnelle tout en maintenant la puret\u00e9 du milieu. Cela en fait un choix id\u00e9al pour r\u00e9guler l'eau propre, les eaux us\u00e9es, l'air ambiant et les huiles neutres avec un minimum d'entretien sur le cycle de vie.<\/p>\n<table data-path-to-node=\"1\">\n<thead>\n<tr>\n<td><strong>Description<\/strong><\/td>\n<td><strong>Valeur<\/strong><\/td>\n<td><strong>Unit\u00e9<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"1,1,0,0\"><b data-path-to-node=\"1,1,0,0\" data-index-in-node=\"0\">Pression Nominale (PN)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,1,1,0\">16<\/span><\/td>\n<td><span data-path-to-node=\"1,1,2,0\">\u2013<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,2,0,0\"><b data-path-to-node=\"1,2,0,0\" data-index-in-node=\"0\">DN<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,2,1,0\">50\u2013400<\/span><\/td>\n<td><span data-path-to-node=\"1,2,2,0\">mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,3,0,0\"><b data-path-to-node=\"1,3,0,0\" data-index-in-node=\"0\">Pression d'\u00e9preuve : Pression d'\u00e9preuve de coque<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,3,1,0\">2.4<\/span><\/td>\n<td><span data-path-to-node=\"1,3,2,0\">MPa<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,4,0,0\"><b data-path-to-node=\"1,4,0,0\" data-index-in-node=\"0\">Pression d'\u00e9preuve : Pression d'\u00e9preuve d'\u00e9tanch\u00e9it\u00e9<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,4,1,0\">1.76<\/span><\/td>\n<td><span data-path-to-node=\"1,4,2,0\">MPa<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,5,0,0\"><b data-path-to-node=\"1,5,0,0\" data-index-in-node=\"0\">Pression d'\u00e9preuve : Pression d'\u00e9preuve \u00e0 l'air<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,5,1,0\">0.6<\/span><\/td>\n<td><span data-path-to-node=\"1,5,2,0\">MPa<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,6,0,0\"><b data-path-to-node=\"1,6,0,0\" data-index-in-node=\"0\">Temp. appropri\u00e9e.<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,6,1,0\">\u2264 120<\/span><\/td>\n<td><span data-path-to-node=\"1,6,2,0\">\u2103<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"1,7,0,0\"><b data-path-to-node=\"1,7,0,0\" data-index-in-node=\"0\">Milieu appropri\u00e9<\/b><\/span><\/td>\n<td><span data-path-to-node=\"1,7,1,0\">Eau, Vapeur, Huile (W.A.O)<\/span><\/td>\n<td><span data-path-to-node=\"1,7,2,0\">\u2013<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"featured_media":514,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[36,17],"product_tag":[],"class_list":["post-513","product","type-product","status-publish","has-post-thumbnail","product_cat-casting-gate-valves","product_cat-gate-valves","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.yayevalve.com\/fr\/wp-json\/wp\/v2\/product\/513","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yayevalve.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.yayevalve.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yayevalve.com\/fr\/wp-json\/wp\/v2\/comments?post=513"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yayevalve.com\/fr\/wp-json\/wp\/v2\/media\/514"}],"wp:attachment":[{"href":"https:\/\/www.yayevalve.com\/fr\/wp-json\/wp\/v2\/media?parent=513"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.yayevalve.com\/fr\/wp-json\/wp\/v2\/product_brand?post=513"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.yayevalve.com\/fr\/wp-json\/wp\/v2\/product_cat?post=513"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.yayevalve.com\/fr\/wp-json\/wp\/v2\/product_tag?post=513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}