ANSI Z21.22-1999 标准详情
- 标准号:ANSI Z21.22-1999
- 中文标题:热水供给系统用安全阀(与CSA 4.4-1998相同)
- 英文标题:Relief Valves for Hot Water Supply Systems (same as CSA 4.4-1998)
- 标准类别:美国国家标准
- 发布日期:1999
Details test and examination criteria for: 1.Temperature relief valves and combination temperature and pressure relief valves for use on storage tanks of hot water supply systems without heater input limitation; 2.Valves having only pressure relief f
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