Watts 174A-3/4-30 Boiler Pressure Relief ValveThe Boiler Pressure Relief Valve from Watts (174A 3 4 30) protects hot water heating boilers by safely releasing excess pressure. This lever type relief valve combines a bronze body with a stainless steel spring for dependable operation and long lasting performance. Designed for 3 4 inch inlet and 3 4 inch outlet with female threaded connections, it fits standard boiler piping. The valve features a set pressure of 30 PSI and a service range of 30150

safe heating and dependable room comfort

Safety Relief Valve designed for hot water boiler systems and well systems

Temperature rating: 250°F

heat-resistant gasket material designed for gas furnaces

120V coil suitable for most control circuits

accurate responses to temperature changes

Temperature Rating: Up to 240°F

and 9 seconds for spring-return from full open to close

It meets ASHRAE 52

Built for reliable operation with standard 24-volt control circuits

It features durable materials

designed for reliable performance in demanding environments