{"id":16714,"date":"2022-06-23T03:24:16","date_gmt":"2022-06-23T03:24:16","guid":{"rendered":"https:\/\/zecovalve.com\/?p=16714"},"modified":"2022-09-10T23:58:43","modified_gmt":"2022-09-10T23:58:43","slug":"six-classification-standards-of-resilient-seated-butterfly-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/de\/six-classification-standards-of-resilient-seated-butterfly-valve.html","title":{"rendered":"Sechs Klassifizierungsstandards f\u00fcr elastisch dichtende Absperrklappen"},"content":{"rendered":"<p>Das Absperrventil mit elastischem Sitz wird als Komponente zum Ein- und Ausschalten und zur Durchflussregelung von Rohrleitungssystemen in vielen Bereichen eingesetzt, beispielsweise in der Erd\u00f6l- und Chemieindustrie, Metallurgie und Wasserkraft. Die Absperrklappe des Absperrventils mit elastischem Sitz wird in Durchmesserrichtung der Rohrleitung installiert. Im zylindrischen Kanal des Absperrventilk\u00f6rpers dreht sich die scheibenf\u00f6rmige Absperrklappe um die Achse mit einem Drehwinkel zwischen 0\u00b0 und 90\u00b0. Bei einer Drehung um 90\u00b0 ist das Ventil vollst\u00e4ndig ge\u00f6ffnet.<\/p>\n\n\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-there-are-six-classifications-of-resilient-seated-butterfly-valve\">Es gibt sechs Klassifikationen von Absperrklappen mit weichem Sitz:<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Klassifizierung nach Dichtfl\u00e4chenmaterial<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>Weichdichtende Absperrklappe: Das Dichtungspaar besteht aus nichtmetallischem Weichwerkstoff.<\/li><li>Das Dichtungspaar besteht aus metallischem Hartmaterial und nichtmetallischem Weichmaterial: Absperrklappe mit Metallsitz. Das Dichtungspaar besteht aus Hartmetallmaterialien.<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Klassifizierung nach Bauform<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>Center <a href=\"https:\/\/zecovalve.com\/de\/products\/metal-seated-butterfly-valve.html\/\">Absperrklappe<\/a><\/li><li>Kohleventil mit einfach-exzentrischer Abdichtung<\/li><li>Absperrklappe mit doppelexzentrischer Abdichtung<\/li><li>Zapfventil mit Drei-Exzenter-Abdichtung<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Klassifizierung nach Siegelform<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>Zwangsdichtende Absperrklappe: elastisch dichtende Absperrklappe. Der spezifische Dichtdruck entsteht durch die Elastizit\u00e4t des Ventilsitzes bzw. der Ventilplatte, nachdem die Ventilplatte beim Schlie\u00dfen des Ventils auf den Ventilsitz gedr\u00fcckt hat.<\/li><li>Drehmomentdichtende Absperrklappe. Der Dichtdruck wird durch das auf die Klappenwelle ausge\u00fcbte Drehmoment erzeugt.<\/li><li>Druckdicht dichtendes Absperrventil. Der Dichtdruck entsteht durch die Beaufschlagung des Dichtelementes des elastischen Teils mit dem Ventilsitz bzw. der Ventilplatte.<\/li><li>Automatisch dichtende Absperrklappe. Der Sperrdruck wird automatisch durch den Mediumsdruck erzeugt.<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Klassifizierung nach Arbeitsdruck<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>Vakuum-Absperrklappe: die Absperrklappe mit einem niedrigeren Arbeitsdruck als der normale atmosph\u00e4rische Druck.<\/li><li>Niederdruck-Absperrklappe: die Absperrklappe mit Nenndruck PN &lt; 1,6 MPa.<\/li><li>Mitteldruck-Absperrklappe: Die Absperrklappe mit Nenndruck PN 2,5 \u2013 6,4 MPa.<\/li><li>Hochdruck-Absperrklappe: die Absperrklappe mit Nenndruck PN 10,0 \u2013 80,0 MPa.<\/li><li>H\u00f6chstdruck-Absperrklappe: die Absperrklappe mit Nenndruck PN &gt; 100 MPa.<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. Klassifizierung nach Kreuzung<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\"><li>Wafer-Absperrklappe<\/li><li>Flansch-Absperrklappe<\/li><li>Absperrklappe mit \u00d6se<\/li><li>Schwei\u00dfabsperrklappe<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>6. Klassifizierung nach Betriebstemperatur<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Hochtemperatur-Absperrklappe: t &gt; 450\u2103<\/li><li>Mitteltemperatur-Absperrklappe: 120\u2103<\/li><li>Normaltemperatur-Absperrklappe: -40\u2103<\/li><li>Niedertemperatur-Absperrklappe: -100\u2103<\/li><li>Ultra-Tieftemperatur-Absperrklappe: t &lt; \u2013 100 \u2103<\/li><\/ul>\n\n\n\n<!-- Andy:h-related-tags -->\n<h2 id=\"h-related-tags\">Verwandte Tags:<\/h2>\n<!-- \/Andy:h-related-tags -->\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/\">ZECO-Ventil<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/introduction-of-epdm-nbr-butterfly-valve-seat-industrial-valve-information-news-zeco-valve.html\/\">NBR-Absperrklappe<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/difference-between-gate-valve-and-butterfly-valve.html\/\">Unterschied zwischen Absperrschieber und Absperrklappe<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/produkt\/manual-gate-valve\/\">Hersteller von manuell bet\u00e4tigten Absperrschiebern<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/the-function-of-globe-valve-in-pipeline-system.html\/\">Was sind Absperrventile?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/what-is-an-axial-flow-silent-check-valve.html\/\">Was ist ein Axialr\u00fcckschlagventil<\/a>\n\n<\/div>\n\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/china-gate-valves-suppliersnon-rising-stem-gate-valvesks-gate-valves.html\/\">Was ist ein Absperrschieber?<\/a>\n\n<\/div>\n\n\n\n<div class=\"re_main\">\n<a href=\"https:\/\/zecovalve.com\/de\/tag\/shanghai-pressure-reducing-valve-factory\/\">Shanghai Druckminderventilfabrik<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Die Absperrklappe mit elastischem Sitz ist ein Bauteil, das zur Auf-Zu- und Durchflussregelung von Rohrleitungssystemen verwendet wird und in vielen Bereichen, wie z. B. ... <a title=\"Sechs Klassifizierungsstandards f\u00fcr elastisch dichtende Absperrklappen\" class=\"read-more\" href=\"https:\/\/zecovalve.com\/de\/six-classification-standards-of-resilient-seated-butterfly-valve.html\" aria-label=\"Mehr zu Sechs Klassifizierungsnormen f\u00fcr Absperrklappen mit weichem Sitz\">Weiterlesen ...<\/a><\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[2210],"tags":[2424,3657,3192,2422,2366,2421,2420,2423],"class_list":["post-16714","post","type-post","status-publish","format-standard","hentry","category-butterfly-valve","tag-center-butterfly-valve","tag-center-line-butterfly-valve","tag-china-epdm-butterfly-valve","tag-flange-butterfly-valve","tag-lug-butterfly-valve","tag-resilient-seat-butterfly-valve","tag-resilient-seated-butterfly-valve","tag-wafer-butterfly-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":false,"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/de\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":2210,"name":"Butterfly Valve","slug":"butterfly-valve","term_group":0,"term_taxonomy_id":2210,"taxonomy":"category","description":"","parent":0,"count":49,"filter":"raw","cat_ID":2210,"category_count":49,"category_description":"","cat_name":"Butterfly Valve","category_nicename":"butterfly-valve","category_parent":0}],"tag_info":[{"term_id":2424,"name":"center butterfly valve","slug":"center-butterfly-valve","term_group":0,"term_taxonomy_id":2424,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":3657,"name":"Center line Butterfly Valve","slug":"center-line-butterfly-valve","term_group":0,"term_taxonomy_id":3657,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_e4c4a1-9b\"} \/-->\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 CENTERLINE BUTTERFLY VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nA resilient seated butterfly valve with superior design features and materials of construction to provide repeatable tight shutoff in severe abrasive and corrosive environments for a variety of applications.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Standard of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Flange Standard.:DIN2501, BS10-D, BS4504, ANSI B16.1, B16.42, JIS B2239<\/li>\r\n \t<li>Valve Tested: API598<\/li>\r\n \t<li>Face to Face: DIN3202-K1, EN558-1 20 SERIES, BS5155, MSS SP-67<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Material of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table -->\r\n<figure class=\"wp-block-table\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td><strong>o<\/strong><\/td>\r\n<td><strong>Parts Name<\/strong><\/td>\r\n<td><strong>Material<\/strong><\/td>\r\n<\/tr>\r\n<tr>\r\n<td>1<\/td>\r\n<td>Body<\/td>\r\n<td>C.I. \/ D.I. \/ C.S.\u00a0\/ S.S.<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>2<\/td>\r\n<td>Disc<\/td>\r\n<td>A536 60-40-18 \/ CF8 \/ CF8M \/ Br \/ AI-Br<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>3<\/td>\r\n<td>Seat<\/td>\r\n<td>NBR \/ EPDM \/ VITON \/ PTFE<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>4<\/td>\r\n<td>Stem<\/td>\r\n<td>SS410 \/ SS304 \/ SS216<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>5<\/td>\r\n<td>Pin<\/td>\r\n<td>SS304 \/ SS316<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>6<\/td>\r\n<td>Bushing<\/td>\r\n<td>PTFE \/ Bronze<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>7<\/td>\r\n<td>O-Ring<\/td>\r\n<td>NBR \/ EPDM \/ VITON<\/td>\r\n<\/tr>\r\n<tr>\r\n<td>8<\/td>\r\n<td>Key<\/td>\r\n<td>Carbon Steel \/ SUS304 \/ SUS316<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Design Features of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Corrosion Resistance<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWith Centerline Butterfly Valves only two parts of the valve come in contact with the medium. This means that neither the body nor mechanical parts such as the shaft are exposed to the corrosive environment.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe only two parts in contact with the medium are the body lining and the disc. These are available in a selection of materials so that a suitable corrosion-resistant combination can be chosen for most any application.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Bi-directional Shutoff<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCenterline Butterfly Valves are liquid and gas-tight in both flow directions. The disc presses with uniform compression into the elastic cartridge seat over the entire circumference of the valve.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Replaceable Seat<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe replaceable seat consists of a reinforced backup ring, on which the elastomer seat material is vulcanized. When mounting the valve between the pipe flanges this stable seat cannot be deformed or displaced. The cartridge design also prevents deformation when the valve is cycled, such as stretching and bulging of the elastomer in front of the moving disc.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nThe fixed connection between the elastomer and the backup ring allows the use of the valve in a full vacuum and high flow velocities. The slightly protruding sealing lip of the seat also serves as the flange seal.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-features-of-centerline-butterfly-valve\">Features of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>Suitable for both gaseous and liquid service<\/li>\r\n \t<li>Phenolic Backed Seat for superior sealing and long term use<\/li>\r\n \t<li>Single-piece stem design assures even torque distribution<\/li>\r\n \t<li>Positive shutoff bi-directionally<\/li>\r\n \t<li>Direct mount automation<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Applications of Centerline Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li>HVAC<\/li>\r\n \t<li>Chemical\/Petrochemical Processing<\/li>\r\n \t<li>Food and Beverage<\/li>\r\n \t<li>Power and Utilities<\/li>\r\n \t<li>Pulp and Paper<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->","parent":0,"count":12,"filter":"raw"},{"term_id":3192,"name":"China EPDM Butterfly Valve","slug":"china-epdm-butterfly-valve","term_group":0,"term_taxonomy_id":3192,"taxonomy":"post_tag","description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_d933f8-47\"} \/-->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-what-is-epdm-butterfly-valve\">What is EPDM Butterfly Valve?<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nEPDM is the abbreviated name for Ethylene Propylene Diene Monomer. In general industry, one may see other abbreviations or trade names used in lieu of EPDM such as EPT, Nordel, ECD, or EPR. All of these are the same materials as EPDM. EPDM is a standard seat material offered in Bray resilient-seated butterfly valves.\r\n\r\n<!-- \/wp:paragraph -->\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 CHINA EPDM BUTTERFLY VALVE PRICE<\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Specifications of EPDM Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table {\"className\":\"is-style-stripes\"} -->\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Design Standard<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">EN 593,\u00a0MSS SP67\u00a0\u00a0\u00a0API 609\u00a0\u00a0BS5155<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Inspection &amp;\u00a0Test<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">API 598\u00a0\u00a0ISO 5208\u00a0\u00a0EN 12266<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">End Standard<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">ANSI B16.1 CL. 125LB &amp;\u00a0B16.5 CL. 150LBAS 2129 Table D\u00a0&amp; E\u00a0\u00a0\u00a0BS 10 Table D\u00a0&amp; EDIN 2501 PN6, PN10 &amp;\u00a0PN16EN 1092 PN6, PN10 &amp;\u00a0PN16ISO 2531 PN6, PN10 &amp;\u00a0PN16ISO 7005 PN6, PN10 &amp;\u00a0PN16KS B\u00a01511 \/\u00a0JIS B\u00a02210 5K &amp;\u00a010KMSS SP44 CL. 150LB\u00a0\u00a0AWWAC207SABS 1123 Table 1000\/3 &amp;\u00a0Table 1600\/3<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Face to Face<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">ISO 5752,\u00a0EN 558,\u00a0MSS SP67, and API 609\u00a0\u00a0DIN3202<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Top Flange<\/td>\r\n<td class=\"has-text-align-left\" data-align=\"left\">ISO 5211<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types of China EPDM Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n \t<li><strong>Wafer Butterfly valves<\/strong>\r\n<ul>\r\n \t<li>Equipped with a tightly fitting seal, o ring, and a flat valve face, Wafer Butterfly valves have good control of flow, which assures unidirectional flow.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Flanged Butterfly valves<\/strong>\r\n<ul>\r\n \t<li>These Flanged Butterfly valves with flanges on both ends. The flange ends connect with the flanges on the pipeline by bolts.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Lug-Style Butterfly valves<\/strong>\r\n<ul>\r\n \t<li>A Lug-Style Butterfly valve has the function of reducing pressure rating.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Welded Butterfly valves<\/strong>\r\n<ul>\r\n \t<li>Butt Weld Butterfly valves and Socket Weld Butterfly valves are two commonly used Welded Butterfly valves. These kinds of valves are of the enclosed type, helping to both on-off and regulate service.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Parts of EPDM Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:table {\"className\":\"is-style-stripes\"} -->\r\n<figure class=\"wp-block-table is-style-stripes\">\r\n<table>\r\n<tbody>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Parts<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Material<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Body<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Cast iron, Ductile iron, WCB<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Seat<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">EPDM, NBR, VITON, PTFE<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Disc<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Nickel ductile iron, AI bronze, Stainless Steel<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Stem<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Stainless Steel, Monel<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Bushing<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">PTFE<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">\"O\" ring<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">PTFE<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Pin<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Stainless Steel<\/td>\r\n<\/tr>\r\n<tr>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Key<\/td>\r\n<td class=\"has-text-align-center\" data-align=\"center\">Stainless Steel<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n<!-- \/wp:table -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Advantages of EPDM Butterfly Valve<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nButterfly valves are similar to ball valves but have more advantages. They are open and close very quickly when actuated pneumatically. The disc is lighter than a ball, and the valves require less structural support than a ball valve of comparable diameter. Butterfly valves are very precise, which makes them advantageous in industrial applications. They are quite reliable and require very little maintenance.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list {\"ordered\":true} -->\r\n<ol>\r\n \t<li>Turning on\/off easily and rapidly with less force. Having less fluid resistance and can be operated frequently.<\/li>\r\n \t<li>Simple structure, small size, and short face-to-face dimension, which are suitable for large-diameter valves.<\/li>\r\n \t<li>It can be used for transmitting mud, fewer liquids are stored at the apertures of the pipe.<\/li>\r\n \t<li>Long service life. Standing the test of tens of thousands of opening\/closing operations.<\/li>\r\n \t<li>Butterfly valves have excellent regulation performance.<\/li>\r\n \t<li>Small torque. The pressure on discs at the two sides of the spindle is almost equal, causing contrary torque. Thereby, the valves can be opened with less force.<\/li>\r\n \t<li>A sealing face is generally made of rubber or plastic. So the butterfly valves can be with good sealing under low pressure.<\/li>\r\n<\/ol>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2>EPDM Butterfly Valve - China Manufacturers, Factory, Suppliers<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nWe'll make each hard work to become excellent and excellent, and speed up our measures for standing from the rank of intercontinental top-grade and high-tech enterprises for Epdm Butterfly Valve, Rubber Lined Double Flange Butterfly Valve, Butterfly Valve Wafer, Electric Actuator Butterfly Valve, Lug Support Butterfly Valve. We warmly welcome friends from all walks of existence to cooperate with us. The product will supply to all over the world, such as in Europe, America, Australia, Zurich, Mexico, Greece, and Azerbaijan. We have top engineers in these industries and an efficient team in the research. What is more, we have our own archives mouths and markets in China at a low cost. Therefore, we can meet different inquiries from different clients. Please find our website to check more information about our products.\r\n\r\n<!-- \/wp:paragraph -->","parent":0,"count":7,"filter":"raw"},{"term_id":2422,"name":"flange butterfly valve","slug":"flange-butterfly-valve","term_group":0,"term_taxonomy_id":2422,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2366,"name":"lug butterfly valve","slug":"lug-butterfly-valve","term_group":0,"term_taxonomy_id":2366,"taxonomy":"post_tag","description":"","parent":0,"count":7,"filter":"raw"},{"term_id":2421,"name":"resilient seat butterfly valve","slug":"resilient-seat-butterfly-valve","term_group":0,"term_taxonomy_id":2421,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2420,"name":"resilient seated butterfly valve","slug":"resilient-seated-butterfly-valve","term_group":0,"term_taxonomy_id":2420,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2423,"name":"wafer butterfly valve","slug":"wafer-butterfly-valve","term_group":0,"term_taxonomy_id":2423,"taxonomy":"post_tag","description":"","parent":0,"count":5,"filter":"raw"}],"taxonomy_info":{"category":[{"value":2210,"label":"Butterfly Valve"}],"post_tag":[{"value":2424,"label":"center butterfly valve"},{"value":3657,"label":"Center line Butterfly Valve"},{"value":3192,"label":"China EPDM Butterfly Valve"},{"value":2422,"label":"flange butterfly valve"},{"value":2366,"label":"lug butterfly valve"},{"value":2421,"label":"resilient seat butterfly valve"},{"value":2420,"label":"resilient seated butterfly valve"},{"value":2423,"label":"wafer butterfly valve"}]},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Six Classification Standards of Resilient Seated Butterfly Valve - ZECO 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\/de\/six-classification-standards-of-resilient-seated-butterfly-valve.html\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Six Classification Standards of Resilient Seated Butterfly Valve - ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"The resilient seat butterfly valve, as a component used to\u00a0achieve\u00a0on-off and\u00a0flow\u00a0control of pipeline system, has been widely used in many fields, such ... 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