Description
Standard Pressure Setting: 30psi (206.9 kPa).

Series 374A Watts Boiler Pressure Relief Valves are used in hot water boiler applications to protect against excessive pressure on all types of hot water heating boiler equipment. It consists of an iron body construction with forged bronze inlet connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series Watts 374A 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 and shall not be used as an operating control.
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Manuals (1)
Specs
Size:
3/4"
Pressure Set Point:
30 psi
Capacity:
550000 BTU/hr
ASME:
Yes
Material:
Bronze
Application:
Heating
Thread Type:
Female
Temperature Range (F):
250°F Max
Connection Type:
Threaded
Inlet Type:
Female Threaded
Outlet Type:
Female Threaded
Width:
2-1/2"
Height:
3-5/8"
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