{"id":489134,"date":"2024-11-05T12:21:41","date_gmt":"2024-11-05T12:21:41","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/api-std-609-2021\/"},"modified":"2024-11-05T12:21:41","modified_gmt":"2024-11-05T12:21:41","slug":"api-std-609-2021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/api\/api-std-609-2021\/","title":{"rendered":"API STD 609-2021"},"content":{"rendered":"<p>1.1 This standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for gray iron, ductile iron, bronze, steel, nickel-based alloy, or special alloy butterfly valves.<\/p>\n<p> 1.2 The following two categories of butterfly valves are included:<\/p>\n<p> a) Category A\u2014Manufacturer\u2019s rated cold working pressure (CWP) butterfly valves, usually with a concentric disc and seat configuration. Sizes covered are NPS 2 to NPS 60 for valves having ASME class 125 or class 150 flange bolting patterns.<\/p>\n<p> b) Category B\u2014ASME class and pressure-temperature-rated butterfly valves that have an offset seat and either an eccentric or a concentric disc configuration. Sizes covered are listed below:<\/p>\n<ul>\n<li> for lug and wafer, class 150 and 300: NPS 2 to NPS 60;<\/li>\n<li> for lug and wafer, class 600: NPS 3 to NPS 60;<\/li>\n<li> for double-flanged short and long pattern, class 150, 300, and 600: NPS 3 to NPS 60;<\/li>\n<li> for butt-welding ends, class 150, 300 and 600: NPS 3 to 60;<\/li>\n<\/ul>\n<p> Information to be specified by the purchaser is shown in Annex B.<\/p>\n<p> 1.3 Valve configurations include double-flanged, lug- and wafer-type with facings that permit installation between ASME and MSS flanges and butt-welding ends. Configurations conform to the standards and specifications listed in Section 2. Typical valve construction and nomenclature for valve parts are shown in Annex C.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Butterfly Valves: Double-flanged, Lug-and Wafer-type and Butt-welding Ends<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/api\/\"><b>API<\/b><\/a><\/td>\n<td>2021<\/td>\n<td>34<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":489142,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2642],"product_tag":[],"class_list":{"0":"post-489134","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-api","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/489134","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/489142"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=489134"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=489134"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=489134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}