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Fire Sprinkler Pressure Relief Valve

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Model 4058 and 4059
Model 4058 and 4059

Fire Sprinkler Pressure Relief Valve

This Fire Sprinkler Pressure Relief Angle Valve is constructed from cast brass and can be specified as adjustable or fixed. It operates with a pressure range of 15 to 175 PSI and has a 0.75” NPT Male Inlet and a 0.75” NPT Female Outlet.

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MGI Corporate Brochure (pdf)
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MGI Brands Flyer (pdf)
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Potter Roemer Mechanical Brochure (pdf)
Potter Roemer Mechanical Products - Pressure Reducing Valve, Hose & Gate Valves, Flush Connection, Wall & Freestanding Connections, Hydrants, Roof Connections, Pump Test Connection, Hose Rack Assemblies, Hose & Storage, Nozzles, Hose Cabinets, Extinguisher Cabinets, Valve Cabinets, Fire Pro Products [L# L1001700, Feb 2026]13 MB

Specifications

MaterialCast Brass Valve
Body TypeAngle
AdjustableSpecify: Adjustable or Fixed
Pressure15 thru 175 PSI
ThreadMust be specified by customer
Inlet0.75" NPT Male
Outlet0.75" NPT Female