CSA ANSI Z21.22a-2000/CSA 4.4a-2000 (R2014)
September 11, 2020
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Scope
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 features for use on storage tanks of hot water supply systems with inputs up to and including 200,000 Btu per hour; (3) Automatic gas shutoff valves and devices; and (4) Vacuum relief valves.
Product Details
- Published:
- 01/17/2001
- Number of Pages:
- 5
- File Size:
- 1 file , 270 KB
- Product Code(s):
- 2414269, 2414269