Watts 0274751 94 PSI Max Pressure, 3/4" Inlet x 3/4" Outlet Size, 30-150 PSI Range, Pressure Relief Valve

This 3/4 inch 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 125 psi (862 kPa) with corresponding high pressure ratings up to 2,070,000 BTU/hr.2,070,000 BTU/hr.

Features:
Non-mechanical seat-to-disc alignment will not stick or freeze
Spring loaded
Automatic reseating
Bronze body

Specifications:

Manufacturer: Watts
Manufacturer Part Number: 0274751
Product Type: Pressure Relief Valve
Flow Capacity: 2070000 BTU/hr
Inlet Connection Size: 3/4 IN
Inlet Connection Type: Female Threaded
Inlet Thread Type: NPT
Lead Free: NO
Maximum Temperature: 250 Degree Fahrenheit
Maximum Working Pressure: 94 PSI
Outlet Connection Size: 3/4"
Outlet Connection Type: Female Threaded
Outlet Thread Type: NPT
Pressure Range: 30 to 150 PSI
Pressure Relief Setting: 125 PSI
Protection Type: Pressure
Series: 174A
Dimensions: 5.85" x 2.65" x 2.3"
Weight: 1.17 lb

Tech Sheet