CSA ANSI Z21.22-1999/4.4-M99 Relief Valves for Hot Water Supply Systems

standard by CSA Group, 04/01/1999

Full Description

1.1 Scope 1.
1.1 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

Product Details

Published: 04/01/1999 Number of Pages: 33