Watts 0274934 Valve 30067439-890 Comprehensive Hardware: Includes multiple ceramic

Comprehensive Hardware: Includes multiple ceramic bushing sizes (

This specific model is primary rated for 60Hz operation

Key Benefits Dead-End Lockup: The high-leverage valve linkage ensures absolute shut-off

ensuring exact fit and function without modify field wiring

The barbed fittings ensure a leak-resistant seal when paired with standard HVAC pneumatic tubing

Watts 0274934 Valve 30067439-890 Comprehensive Hardware: Includes multiple ceramicThe Watts 0274934, also identified as the Watts 174A 1 30, is a high capacity 1 inch ASME pressure relief valve designed specifically for hot water heating systems and domestic supply boilers. Engineered with a heavy duty bronze body and a stainless steel spring, this valve provides critical overpressure protection for equipment rated up to 1,005,000 BTU hr. The 174A series is the industry standard for contractors requiring a 30 PSI relief setting