Watts_174A_Relief_Valve_
This is a tag for a Watts 174-A boiler relief valve; 30 ponds limit. Tag 174A 9407; EDP 1910274. Manufactured by Watts Regulator Corporation, North Andover, Massachucetts, February 1974. No copyright notice and no copyright registration; this document is Public Domain under Rule 5 of the U.S. Copyright Statutes. Ebook created by Gerard Arthus.
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