This 3/4 IN boiler pressure relief valve is used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a bronze body construction with NPT threaded female inlet and NPT threaded female outlet (drain) connections, non-metallic disc to metal seating, stainless steel spring and test lever. It resists corrosive water conditions, sticking and freezing and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief, not as an operating control. The pressure relief is set at 50 PSI with corresponding high pressure ratings up to 950000 BTU/HR.

Watts Pressure Relief Valve, Item Name: Pressure Relief Valve, Series/Model: Series 174A/Model 174A-050 3/4, 3/4 IN Nominal, FNPT X FNPT Connection, 30 - 150 PSI, Bronze Body, Industry Standards: Buy American Act Compliant, Lead Free: No

• Spring loaded
• Non mechanical seat-to-disc alignment will not stick or freeze
• Automatic reseating

• Installation Instruction Name https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/0274513_Inst.pdf
• Specification Name https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/0274513_Spec.pdf