Relief Valves

Watts is one of the leading manufacturers for relief valves at very affordable prices. The following are some of the more popular relief valves:

1. Series 100XL Temperature and Pressure Watts Relief Valves- used in water heater and hot water storage tank applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 100,000 BTU/hr.
   
2. Watts Series 40L, 40XL Automatic Reseating Temperature and Pressure Relief Valves- used in commercial water heater applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters.
   
3. Series 140S, 140X Automatic Reseating Temperature and Pressure Relief Valves.
   
4. Watts Series 174A Boiler Pressure Relief Valves are used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment.
   
5. Watts Series 530C Calibrated Pressure Relief Valves are used in commercial, residential and industrial applications to protect against excessive pressure in systems containing water, oil, or air. This Watts Relief Valve consists of a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring, brass bonnet, Buna-N disc, and Buna-N O-ring.
   

For more information on Relief Valves visit our website www.supplyhouse.com