Description
The Watts F383310 1-1/4 Pressure Relief Valve 740-050 is a safety system designed to control excessive pressure in closed-loop heating and hot water circuits within HVAC systems. It opens automatically when internal pressure exceeds its calibrated set point discharging fluid to a safe outlet and reducing stress on system components. It is used in boiler assemblies, hydronic heating loops and storage tanks where pressure regulation is required for stable operation. The valve serves as a protective element that maintains safe operating conditions by preventing over-pressurization of piping, heat exchangers and connected equipment during thermal expansion or flow restriction places.
