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CSA/AM ANSI Z21.22-1999/CSA 4.4-M99
Relief Valves for Hot Water Supply Systems - First Edition
| contributor author | CSA/AM - CSA America, Inc. | |
| date accessioned | 2017-09-04T18:00:41Z | |
| date available | 2017-09-04T18:00:41Z | |
| date copyright | 1999.04.01 (R 2004) | |
| date issued | 2004 | |
| identifier other | AAZMIBAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;quessionid=F237659669B749A/handle/yse/183696 | |
| description abstract | This standard applies to the following types of relief valves constructed entirely of new, unused parts and materials: a. Temperature relief valves and combination temperature and pressure relief valves for use on storage tanks of hot water supply systems without heater input limitation "T&P" valves, hereinafter called. b. Valves having only pressure relief features for use on storage tanks of hot water supply systems without heater input limitation. c. Vacuum relief valves. A temperature relief valve, or a T&P valve shall operate when the temperature sensing element is at 210°F (99°C) or less. A device with a higher operating temperature is not acceptable under this Standard. A vacuum relief valve shall be of a single-purpose type. All references to psi throughout this standard are to be considered gage pressures unless otherwise specified. Exhibit A contains provisions that are unique to Canada. | |
| language | English | |
| title | CSA/AM ANSI Z21.22-1999/CSA 4.4-M99 | num |
| title | Relief Valves for Hot Water Supply Systems - First Edition | en |
| type | standard | |
| page | 76 | |
| status | Revised | |
| tree | CSA/AM - CSA America, Inc.:;2004 | |
| contenttype | fulltext |
