Description
For pumps with an internal bypass unloader. When it bypass mode, the recirculating water in the pump head will heat up very quickly. When temperatures cross 140 °F (60 °C), the thermal relief valve's wax plug will soften and open to relieve the hot water. After the system cools down, the plug will reset.
Inlet: ¼″, ⅜″ or ½″ M
Max. pressure: 200 psi (15 bar)
