{"id":11259,"date":"2021-12-31T06:49:08","date_gmt":"2021-12-31T06:49:08","guid":{"rendered":"https:\/\/zecovalve.com\/zeco-valve-latest-company-news-about-bsp-end-y-type-spring-check-valve-800-psi-ss316-full-port-ptfe-seat-quality-valve-supplier.html"},"modified":"2022-08-12T08:04:51","modified_gmt":"2022-08-12T08:04:51","slug":"zeco-valve-latest-company-news-about-bsp-end-y-type-spring-check-valve-800-psi-ss316-full-port-ptfe-seat-quality-valve-supplier","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/fr\/zeco-valve-latest-company-news-about-bsp-end-y-type-spring-check-valve-800-psi-ss316-full-port-ptfe-seat-quality-valve-supplier.html","title":{"rendered":"Usine de clapet anti-retour \u00e0 ressort UPVC - Clapet anti-retour \u00e0 ressort vs clapet anti-retour \u00e0 battant"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"h-what-is-a-check-valve\"><span style=\"font-family: arial, helvetica, sans-serif;\">Qu&#039;est-ce qu&#039;un <strong><mark style=\"background-color:var(--base)\" class=\"has-inline-color has-contrast-2-color\"><a href=\"https:\/\/zecovalve.com\/fr\/categorie-de-produits\/check-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">Clapet anti-retour<\/a><\/mark><\/strong>?<\/span><\/h2>\n\n\n\n<p><span style=\"font-family: arial, helvetica, sans-serif;\">La vanne utilis\u00e9e pour emp\u00eacher le reflux dans un syst\u00e8me de tuyauterie est connue sous le nom de clapet anti-retour. Il est \u00e9galement connu sous le nom de clapet anti-retour ou NRV. La pression du fluide traversant un pipeline ouvre la vanne, tandis que toute inversion du d\u00e9bit ferme la vanne.<\/span><\/p>\n\n\n\n<p><span style=\"font-family: arial, helvetica, sans-serif;\">Il permet un d\u00e9bit complet et sans obstruction et se ferme automatiquement \u00e0 mesure que la pression diminue. L&#039;op\u00e9ration exacte varie<\/span> <span style=\"font-family: arial, helvetica, sans-serif;\">en fonction du m\u00e9canisme de la vanne.<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Types de clapets anti-retour<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Clapets anti-retour \u00e0 battant.<\/li><li>Clapets anti-retour \u00e0 disque inclinable.<\/li><li>Clapets anti-retour \u00e0 plaquettes.<\/li><li>Clapets anti-retour \u00e0 ressort.<\/li><li>Clapets anti-retour \u00e0 piston.<\/li><li>Clapets anti-retour \u00e0 bille.<\/li><li>Clapets anti-retour Duo.<\/li><li>Clapets anti-retour anti-claquement.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Qu&#039;est-ce que le clapet anti-retour \u00e0 ressort\u00a0?<\/h2>\n\n\n\n<p>Clapet anti-retour \u00e0 ressort. Les vannes sont des dispositifs polyvalents utilis\u00e9s pour contr\u00f4ler le d\u00e9bit de liquides ou de gaz. Ils jouent un r\u00f4le important dans d&#039;innombrables syst\u00e8mes de tuyauterie et de processus, servant g\u00e9n\u00e9ralement \u00e0 r\u00e9guler le d\u00e9bit et la pression, \u00e0 d\u00e9marrer ou \u00e0 arr\u00eater le d\u00e9bit, ou \u00e0 emp\u00eacher l&#039;apparition d&#039;un reflux dans un syst\u00e8me.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"463\" height=\"179\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/Spring-ball-check-valve.png\" alt=\"\" class=\"wp-image-19745\" srcset=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/Spring-ball-check-valve.png 463w, https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/Spring-ball-check-valve-300x116.png 300w\" sizes=\"auto, (max-width: 463px) 100vw, 463px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Qu&#039;est-ce que le clapet anti-retour \u00e0 ressort UPVC\u00a0?<\/h2>\n\n\n\n<p>Le clapet anti-retour \u00e0 ressort UPVC convient aux applications industrielles en plastique\u00a0; offrant une excellente r\u00e9sistance environnementale et chimique. Une vanne en PVC simple \u00e0 installer et \u00e0 entretenir, configurable en tant que clapet anti-retour \u00e0 ressort ou clapet de pied, offre un certain nombre d&#039;avantages l\u00e0 o\u00f9 des \u00e9conomies d&#039;espace et de poids sont non seulement n\u00e9cessaires, mais jouent un facteur important dans le pipeline.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Principales caract\u00e9ristiques du clapet anti-retour \u00e0 ressort UPVC<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Disponible en version \u00e0 ressort ou \u00e0 pied, connexions\u00a0: douille \u00e0 solvant imp\u00e9riale, douille \u00e0 solvant m\u00e9trique et BSP viss\u00e9.<\/li><li>Tailles : 3\/8\u2033 \u00e0 4\u2033 (douille \u00e0 solvant imp\u00e9riale et BSP viss\u00e9) et 16 mm \u00e0 110 mm (douille \u00e0 solvant m\u00e9trique).<\/li><li>Pression nominale : PN10\/16 (ressort anti-retour et clapet de pied).<\/li><li>Corps en PVC-U avec joints toriques en EPDM.<\/li><li>100% test\u00e9 en usine.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Si\u00e8ge de clapet anti-retour \u00e0 ressort en PTFE<\/h2>\n\n\n\n<p>Les si\u00e8ges en PTFE sont fabriqu\u00e9s \u00e0 l&#039;aide de la technologie d&#039;extrusion et peuvent \u00eatre coup\u00e9s et fournis dans une large gamme de tailles standard ou peuvent \u00eatre fournis dans des formes et des couleurs sur mesure.<\/p>\n\n\n\n<p>Les si\u00e8ges en PTFE sont g\u00e9n\u00e9ralement utilis\u00e9s pour les joints de transport de fluides et de gaz, les \u00e9quipements m\u00e9dicaux, les \u00e9quipements alimentaires et de boissons (par exemple les machines \u00e0 caf\u00e9) et les syst\u00e8mes de distribution d&#039;eau.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Normes des clapets anti-retour<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Dimensions face \u00e0 face selon ANSI B16.10<\/li><li>Dimension de la bride d&#039;extr\u00e9mit\u00e9 selon ANSI B16.5<\/li><li>Indices de pression et de temp\u00e9rature selon ANSI B16.34<\/li><li>Test de pression selon API 598<\/li><li>Milieu Applicable\u00a0: eau, gaz, p\u00e9trole et autre milieu de causticit\u00e9<span style=\"font-size: 14px;\"><span style=\"font-family: arial, helvetica, sans-serif;\">.<\/span><\/span><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Clapet anti-retour \u00e0 ressort vs clapet anti-retour \u00e0 battant<\/h2>\n\n\n\n<p>La diff\u00e9rence entre les clapets anti-retour \u00e0 battant et les clapets anti-retour \u00e0 ressort. Le clapet d&#039;un clapet anti-retour \u00e0 battant \u00ab\u00a0bascule\u00a0\u00bb hors du si\u00e8ge pour permettre l&#039;\u00e9coulement vers l&#039;avant, puis revient sur le si\u00e8ge lorsque le d\u00e9bit est arr\u00eat\u00e9. En revanche, un clapet anti-retour \u00e0 ressort int\u00e8gre un ressort pour aider \u00e0 fermer le clapet anti-retour.<\/p>\n\n\n\n<p>Les clapets anti-retour \u00e0 battant sont limit\u00e9s dans l&#039;orientation dans laquelle ils peuvent \u00eatre install\u00e9s. Les clapets anti-retour \u00e0 battant ne peuvent \u00eatre install\u00e9s que dans des applications \u00e0 flux horizontal, ce qui limite consid\u00e9rablement l&#039;orientation de l&#039;installation. Bien que les clapets anti-retour \u00e0 battant offrent une plus grande capacit\u00e9 de d\u00e9bit (valeur CV plus \u00e9lev\u00e9e en supposant que le clapet est compl\u00e8tement ouvert), ils ne s&#039;adaptent pas toujours aux configurations de tuyauterie existantes. D&#039;autre part, les clapets anti-retour \u00e0 ressort peuvent \u00eatre mont\u00e9s dans n&#039;importe quelle orientation d&#039;\u00e9coulement avec les bonnes s\u00e9lections de ressorts. Ainsi, si vous disposez d&#039;un syst\u00e8me sur patins, d&#039;un espace difficile aux dimensions difficiles ou m\u00eame d&#039;une direction de tuyauterie unique, le choix d&#039;un clapet anti-retour \u00e0 ressort avec le bon r\u00e9glage du ressort (c&#039;est-\u00e0-dire la pression de fissuration du ressort) cr\u00e9e plus de possibilit\u00e9s pour trouver la bonne solution pour votre projet sp\u00e9cifique. syst\u00e8me de pompage.<\/p>\n\n\n\n<p>Un clapet anti-retour \u00e0 ressort aidera \u00e0 minimiser les effets du coup de b\u00e9lier, tandis qu&#039;un clapet anti-retour \u00e0 battant peut aggraver le probl\u00e8me. Tout effet de coup de b\u00e9lier pr\u00e9sent dans un syst\u00e8me de tuyauterie peut potentiellement \u00eatre amplifi\u00e9 par un clapet anti-retour \u00e0 battant. Consid\u00e9rons cet exemple de base pour expliquer le concept d&#039;un coup de b\u00e9lier : disons que vous avez une conduite contenant de l&#039;eau et que vous avez un clapet anti-retour. En aval de ce clapet anti-retour, vous disposez d&#039;un robinet \u00e0 bille quart de tour (c&#039;est l&#039;un des types de vannes de r\u00e9gulation les plus couramment utilis\u00e9s pour les conduites de plus petite taille). Disons que l&#039;eau coule et que quelqu&#039;un ferme brusquement le robinet \u00e0 bille quart de tour. Cela peut produire une onde de pression circulant dans la tuyauterie \u2013 c\u2019est ce qu\u2019on appelle un coup de b\u00e9lier. Avec un clapet anti-retour \u00e0 battant en particulier, le clapet de cette vanne sera ouvert jusqu&#039;\u00e0 ce que cette onde de pression revienne au clapet anti-retour. L&#039;onde de pression provoque la fermeture brusque du clapet, ce qui est tr\u00e8s audible et provoque une usure excessive du clapet anti-retour \u00e0 battant et d&#039;autres composants du syst\u00e8me de tuyauterie.<\/p>\n\n\n\n<p>\u00c0 l\u2019inverse, un clapet anti-retour \u00e0 ressort aidera \u00e0 minimiser et, dans certains cas, \u00e0 \u00e9liminer les effets d\u2019un coup de b\u00e9lier. Comment? Lorsque nous pensons \u00e0 la m\u00eame onde de pression qui a ferm\u00e9 le clapet anti-retour \u00e0 battant, le ressort du clapet anti-retour se ferme avant que l&#039;onde de pression n&#039;y arrive. Les clapets anti-retour \u00e0 ressort sont consid\u00e9r\u00e9s comme des \u00ab clapets anti-retour silencieux \u00bb car ils utilisent un ressort pour aider le clapet \u00e0 fermer le clapet anti-retour avant l&#039;inversion du d\u00e9bit de fluide.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Applications des clapets anti-retour<\/h2>\n\n\n\n<p>La vanne est utilis\u00e9e pour emp\u00eacher le retour du fluide dans les canalisations et les \u00e9quipements, et la pression du fluide entra\u00eenera automatiquement le r\u00e9sultat de l&#039;ouverture et de la fermeture.<\/p>\n\n\n\n<p>Lorsque le fluide revient, le disque de la vanne se ferme automatiquement pour \u00e9viter les accidents.<\/p>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Balises associ\u00e9es :<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/fr\/\">Soupape ZECO<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a 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concernant 4 en couplage en fonte ductile rouge Collier de serrage rainur\u00e9 peint | Fournisseur de vannes de qualit\u00e9<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Qu&#039;est-ce qu&#039;un clapet anti-retour ? La vanne utilis\u00e9e pour emp\u00eacher le reflux dans un syst\u00e8me de tuyauterie est connue sous le nom de clapet anti-retour\u2026 <a title=\"Usine de clapet anti-retour \u00e0 ressort UPVC - Clapet anti-retour \u00e0 ressort vs clapet anti-retour \u00e0 battant\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/fr\/zeco-valve-latest-company-news-about-bsp-end-y-type-spring-check-valve-800-psi-ss316-full-port-ptfe-seat-quality-valve-supplier.html\" aria-label=\"Plus sur UPVC Spring Check Valve Factory \u2013 Spring Check Valve vs Swing Check Valve\">Lire plus<\/a><\/p>","protected":false},"author":2,"featured_media":19745,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2343,3552,3553,3554,2820,2821,3551],"class_list":["post-11259","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-check-valve","tag-ptfe-seat-supplier","tag-spring-check-valve","tag-spring-check-valve-vs-swing-check-valve","tag-types-of-check-valve","tag-types-of-check-valves","tag-upvc-spring-check-valve-factory","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/Spring-ball-check-valve.png",463,179,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/fr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":2343,"name":"check valve","slug":"check-valve","term_group":0,"term_taxonomy_id":2343,"taxonomy":"post_tag","description":"","parent":0,"count":11,"filter":"raw"},{"term_id":3552,"name":"ptfe seat supplier","slug":"ptfe-seat-supplier","term_group":0,"term_taxonomy_id":3552,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3553,"name":"Spring Check Valve","slug":"spring-check-valve","term_group":0,"term_taxonomy_id":3553,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3554,"name":"Spring Check Valve vs Swing Check Valve","slug":"spring-check-valve-vs-swing-check-valve","term_group":0,"term_taxonomy_id":3554,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2820,"name":"Types of Check Valve","slug":"types-of-check-valve","term_group":0,"term_taxonomy_id":2820,"taxonomy":"post_tag","description":"<!-- wp:paragraph -->\r\n\r\nCheck valves are found in almost every industrial application acting as one-way or non-return valves. Check valves are simple devices that perform a vital function by preventing reverse flows, therefore preventing damage and ensuring efficient operations. Different types of check valves are designed for a specific application. To help you choose the right check valve for your needs, here are a few of the most common types of check valves and their recommended applications. Follow this new blog in Linquip to find out more.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_40f5bf-86\"} \/-->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"6d8495a3\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"3d442e11\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-3d442e11 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>GET TYPES OF CHECK VALVE INFORMATION<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Working of Types of Check Valves<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nAs already stated that a check valve operates on the principle of differential pressure. For a check valve to open, it must attain a minimum upstream pressure known as cracking pressure. Depending on the check valve design and size, the cracking pressure changes. When the upstream pressure reaches the cracking pressure, the valve opens allowing the fluid to enter. When the upstream pressure falls below the cracking pressure, back pressure is generated and the flow attempt to move from outlet to inlet. At this point, the check valve closes, and the flow halts. The closing mechanism of a check valve varies depending on the design and type of the valve. Spring or Gravity pressure normally assist the closing process.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Check Valve Types<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Lift Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLift-check valves feature a guided disc and a similar seating arrangement as globe valves. The disc is usually in the form of a piston or a ball. There are three body patterns (horizontal, angle, and vertical) that can be installed in horizontal or vertical lines with upward flow.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWhen the flow enters below the seat, a disk is raised from the seat by the pressure of the upward flow. When the flow stops or reverses, the backflow and gravity force the disk downward to set on the seat.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLift check valves are particularly suitable for high-pressure service where the velocity of flow is high. They are commonly used in high-rise buildings, industrial and power plant applications, and water and wastewater applications. They have no external moving parts and are known to be economical and reliable. Over time, these types of check valves can have high energy costs because the disc remains in the flow stream during operation.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThere are two types of lift check valves:\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":4} -->\r\n<h4>Piston Check Valve<\/h4>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThis type of check valve is also known as a plug check valve. It operates by controlling the flow of fluid in a piping system utilizing the linear motion of a piston within the valve chamber. Sometimes the piston has a spring attached, which helps it stay in the closed position when not in use.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":4} -->\r\n<h4>Ball Check Valve<\/h4>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe ball check valve operates simply using gravity. When there is enough pressure in the flow, the ball is lifted upward, and when the pressure is decreased, the ball rolls down and closes the opening. Ball Check Valves come in a wide range of material types and style types.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Swing Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nSwing Check Valves are available in straight body design and y-pattern design. The disk is suspended from the body by means of a hinge pin and seals against the seat which is integral to the body.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThese valves are typically used in sizes 2 inches and over. Swing check valves can be installed in both horizontal and vertical positions. They are not suitable for pulsating flow.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe closure response of the swing check valve is slower compared to the lift check valve due to longer disc travel and inertia of the disk.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":4} -->\r\n<h4>Specifications of Swing Check Valve<\/h4>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Valve Design: BS 1868 \/ API 6D<\/li>\r\n \t<li>Pressure Testing: BS 6755-I<\/li>\r\n \t<li>Face To Face: ANSI B 16.10<\/li>\r\n \t<li>Flange Drilling : ANSI B 16.5 \/ BS 10 Table \/ DIN \/ IS \/ JIS Std.<\/li>\r\n \t<li>Butt Weld End: ANSI B 16.25<\/li>\r\n \t<li>Face to Face: ANSI B 16.10<\/li>\r\n \t<li>Socket Weld End: ANSI B 16.11<\/li>\r\n \t<li>Screwed End: ANSI B 1.20.1(BSP\/NPT)<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Tilting Disc Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe tilting disc check valve is similar in appearance to an eccentric butterfly valve. The valve body is double\u2010flanged and of a short length. The disc is held in place via a shaft which is positioned eccentrically from the body centreline in both the horizontal and vertical axes.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe double eccentricity of the shaft results in the lower section of the disc occupying a greater area in the flow path. Consequently, the disc begins to open at very low flow rates. The tilting disc check valve is therefore commonly used in pumping systems with low flow rates and also for pulsating flows.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDuring flow reversal, the disc closes due to gravity and the upper part of the disc above the shaft centreline pushes against the flow thus acting as a hydraulic brake that cushions the disc as it returns to the closed position. Tilting disc valves can be supplied with optional levers and weights to adjust the closing characteristics of the valve. As such, the tilting disc check valves are well suited to reduce the risk of water hammers.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Butterfly Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA butterfly check valve is known as a dual plate check valve, folding disc check valve, double-disc, or split disc check valve. As the name suggests, two halves of the disk move towards the centerline with the forward flow, and with reverse flow two halves open and rest on the seat to close the flow.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThese types of check valves are good for low-pressure liquid systems as well as gas piping systems. Its lightweight and compact construction make it a preferable choice when space and convenience are important. Besides, it is 80 to 90% lighter than the conventional full-body check valve and the cost of installation and maintenance is lower compared to other types.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Stop Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nStop-check valves can be used for many applications. They\u2019re designed to start, stop, and regulate the flow of materials, and they help to prevent backflow.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nIf the pressure in the system is too low, these valves will automatically close to prevent reverse flow. As a result, damage usually caused by backflow is prevented.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nstop-check-valveThese types of check valves also work with an external mechanism or an override control. With these, you can set the valve to close regardless of flow direction or pressure to ensure safe and efficient operations.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nGenerally, stop-check valves are used in power plants and boiler systems. They\u2019re also beneficial for petroleum production and refining, hydrocarbon processing, and high-pressure safety services.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Diaphragm Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDiaphragm check valves consist of rubber flexing diaphragms or self-centering discs for preventing backflow. When the inlet pressure is increased, the diaphragm flexes open, and flow starts. There are two types of diaphragm check valves;\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Free-floating Normally Open Valve<\/li>\r\n \t<li>Fixed Flexing Normally closed Valve<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nIn the case of normally open diaphragm valves, no cracking pressure is required as the self-centering elastomeric diaphragm is free-floating. However, they need back pressure to close the valve. On the other hand, normally closed valves need a certain inlet pressure to overcome the elasticity of the fixed diaphragm.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDue to very low cracking pressure, Diaphragm check valves find their use in low pressure and vacuum applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Spring Loaded Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThere are two types of Spring Loaded Check Valves; Spring Loaded in-line valves and Spring loaded Y-valves.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":4} -->\r\n<h4>Spring Loaded in-line valve<\/h4>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nIn-line valves are also known as Nozzle Check Valves or Silent Check Valves. These valves employ a centrally guided stem-disc assembly along with a compression spring. To open the valve, the flow pressure must be more than the spring force and cracking pressure. In that case, the flow pushes the disc allowing the flow. When the inlet pressure reduces, the spring pushes the disc against the orifice and shut the valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":4} -->\r\n<h4>Spring Loaded Y-valve<\/h4>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe operating principle of Spring-loaded y-check valves is similar to in-line check valves. The only difference is that the spring and movable disc are located at an angle to form a \u2018y\u2019 shape. The main advantage of Y-type check valves is that they can be inspected and serviced while the valve is still connected to the system.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Foot Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA foot valve is a check valve that has a strainer installed on the inlet side to prevent debris from entering the valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Duckbill Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nDuckbill Check Valves are unique, one-piece, elastomeric components that enable flow to proceed through a soft tube that feeds into the downstream side of the valve wherein back pressure collapses the tube and cuts off the flow.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Wafer Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWafer check valves are very slim and compact in design and use a swinging disc to allow or block flow. They are lightweight and suitable for various applications. They are economical and are available in various sizes. The following figure shows the typical working of a Wafer Check Valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWafer check valves are ideal for services requiring low-pressure loss as the valve operation takes place at a very low-pressure difference.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Silent Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nSilent check valves are incredibly useful for water pipelines and systems. These valves are engineered to control and protect against pressure surges that can occur in water lines. They also work to prevent water hammer and reverse flow.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nSilent check valves are constructed with a spring-assisted disc. When the fluid pressure in the valve is higher than the cracking pressure, or the pressure needed open or close the valve, the spring lowers the disc to prevent reverse flow.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe valve is also manufactured to include a guide to keep the disc moving in vertically. This allows it to reseat properly.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Non-slam Check Valve<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe swing check valve closes abruptly because of gravity and causes a pressure surge resulting in shock waves.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThese high-pressure waves cause severe stress on the piping system.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThis problem can be minimized by installing a Non-Slam type check valve. Non-Slam check valves do not rely on gravity. As the upstream velocity of the fluid slows the spring assist on the valve start to close the disc.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nBy the time the upstream velocity comes to 0, the disc is completely closed. With the reverse flow eliminated, the force necessary to produce a water hammer on either side of the valve is substantially reduced.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":13,"filter":"raw"},{"term_id":2821,"name":"Types of Check Valves","slug":"types-of-check-valves","term_group":0,"term_taxonomy_id":2821,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":3551,"name":"upvc spring check valve factory","slug":"upvc-spring-check-valve-factory","term_group":0,"term_taxonomy_id":3551,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2343,"label":"check valve"},{"value":3552,"label":"ptfe seat supplier"},{"value":3553,"label":"Spring Check Valve"},{"value":3554,"label":"Spring Check Valve vs Swing Check Valve"},{"value":2820,"label":"Types of Check Valve"},{"value":2821,"label":"Types of Check Valves"},{"value":3551,"label":"upvc spring check valve factory"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>UPVC Spring Check Valve Factory - Spring Check Valve vs Swing Check Valve<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zecovalve.com\/fr\/zeco-valve-latest-company-news-about-bsp-end-y-type-spring-check-valve-800-psi-ss316-full-port-ptfe-seat-quality-valve-supplier.html\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"UPVC Spring Check Valve Factory - Spring Check Valve vs Swing Check Valve\" \/>\n<meta property=\"og:description\" content=\"What is a Check Valve? 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