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Water pressure relief valve P4000A prevents pressure build-up in a fire protection system or other closed type system whenever the line pressure exceeds the setting of the spring caused by pumps, elevated piping and thermal expansion.

This water pressure regulator valve comes with 3/4" pressure relief valve which is designed for fire sprinkler system relief. Built using cast bronze and stainless steel, this pressure control valve has standard adjustability from 20-200psi.

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