STD 609-2009

Butterfly Valves: Double-flanged@ Lug- and Wafer-type (Seventh Edition)

STD 609-2009 发布历史

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 that provide tight shutoff in the closed position. The following two categories of butterfly valves are included. a) Category A??Manufacturer's rated cold working pressure (CWP) butterfly valves@ usually with a concentric disc and seat configuration. Sizes covered are NPS 2 to NPS 48 for valves having ASME Class 125 or Class 150 flange bolting patterns. b) Category B??ASME Class and pressure-temperature rated butterfly valves that have an offset seat and either an eccentric or a concentric disc configuration. These valves may have a seat rating less than the body rating. For lug and wafer@ Class 150@ 300@ and 600@ sizes covered are NPS 3 to NPS 24. For double-flanged long pattern@ Class 150@ 300@ and 600@ sizes covered are NPS 3 to NPS 36. For double-flanged short pattern@ Class 150 and 300@ sizes covered are NPS 3 to NPS 48. For double-flanged short pattern@ Class 600@ sizes covered are NPS 3 to NPS 24. Valve configurations include double-flanged@ lug- and wafer-types with facings that permit installation between ASME and MSS flanges that conform to the standards and specifications listed in Section 2.

STD 609-2009由API - American Petroleum Institute 发布于 2009-10-01，并于 2016-02-26 实施。

STD 609-2009的历代版本如下：

• 1991年01月01日 STD 609-1991
• 1997年05月01日 STD 609-1997
• 2004年05月01日 STD 609-2004
• 2009年10月01日 STD 609-2009
• 2016年02月01日 STD 609-2016

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标准号

STD 609-2009

发布日期

2009年10月01日

实施日期

2016年02月26日

废止日期

无

中国标准分类号

/

国际标准分类号

/

发布单位

API - American Petroleum Institute

引用标准

32

适用范围

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 that provide tight shutoff in the closed position. The following two categories of butterfly valves are included. a) Category A??Manufacturer's rated cold working pressure (CWP) butterfly valves@ usually with a concentric disc and seat configuration. Sizes covered are NPS 2 to NPS 48 for valves having ASME Class 125 or Class 150 flange bolting patterns. b) Category B??ASME Class and pressure-temperature rated butterfly valves that have an offset seat and either an eccentric or a concentric disc configuration. These valves may have a seat rating less than the body rating. For lug and wafer@ Class 150@ 300@ and 600@ sizes covered are NPS 3 to NPS 24. For double-flanged long pattern@ Class 150@ 300@ and 600@ sizes covered are NPS 3 to NPS 36. For double-flanged short pattern@ Class 150 and 300@ sizes covered are NPS 3 to NPS 48. For double-flanged short pattern@ Class 600@ sizes covered are NPS 3 to NPS 24. Valve configurations include double-flanged@ lug- and wafer-types with facings that permit installation between ASME and MSS flanges that conform to the standards and specifications listed in Section 2.