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Watts 174A series, 30 psi relief valve is intended for use with hot water boilers with rating of up to 650K BTU.
Technical Specifications:
Features:
Technical Specifications:
- Size: 3/4"
- Connections: Female NPT (inlet) x Female NPT (outlet)
- Relief Pressure: 30 psi (fixed/non-adjustable)
- Max Boiler BTU: 650K BTU
- Max operating temperature: 250°F
Features:
- With seat located above drain, the sediment in water cannot clog/foul it
- Non-mechanical disc-to-seat alignment prevents sticking or freezing
- Water seal designed to protect the steel spring from contact with water
- Rugged, bronze body
- ASME listed, meets MIL-V-18634B