Watts 740 Boiler Pressure Relief Valve

Watts 740 Boiler Pressure Relief Valve provides essential protection for hot water heating boilers. The lever-operated valve delivers precise relief at the correct pressure, ensuring safe operation in residential or light commercial systems.

Designed for reliability, this valve features a 1-1/2 inch inlet and 2 inch outlet with female threaded connections. It uses an iron body, stainless steel spring, metal seat, and a non-metallic disc to balance durability with performance. Set pressure is 30 PSI, with a working range from 30 to 75 PSI and a temperature rating up to 250°F, making it suitable for standard boiler circuits.

• Lever-operated design for easy manual testing and reset
• Inlet/Outlet sizes: 1-1/2" inlet, 2" outlet; female threaded x female threaded
• Materials: iron body, stainless steel spring, metal seat, non-metallic disc
• Pressure & Temp: set pressure 30 PSI; operating range 30–75 PSI; up to 250°F
• Standards & Application: ASME NB, HV, MIL-V-18634B Type I Class 3A Style B; hot water heating boiler
• Extras: seat located above drain, expanded outlet, test lever included

For safe, reliable boiler operation, choose the Watts 740 Boiler Pressure Relief Valve, engineered to meet rigorous industry standards and provide dependable relief when demand rises.