Thermal Relief Valve 91055 1/2"M. 1/2" Male. Hose Tail 6mm. Copper Sonde. Max: 63°C. Max: 10 Bar.

Thermal / Safety Relief Valves will activate if the temperature exceeds 63°C. The relief valve is set above the working pressure. If the working pressure exceeds a predetermined pressure, then the relief will activate and release the water pressure.