API 6D Ed. 22 标准详情
- 标准号:API 6D Ed. 22
- 中文标题:
- 英文标题:Specification For Pipeline Valves (gate, Plug, Ball And Check Valves)
- 标准类别:美国石油学会API
- 发布日期:
Covers flanged and butt welding gate, plug, ball and check valves. Clarifies types, categories and bore sizes of valves covered; adjusts test and marking requirements accordingly; simplifies dimensional table for gate valves; adds metric conversions
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