Thermal Relief Valve, 1/2″ M x 1/8″ F 140° F, AP

by | Jul 25, 2026

Thermal Relief Valve, 1/2″ M x 1/8″ F 140° F, AP A must for any pump that might ever be left in bypass (unloading) mode for more than 15 seconds. This AP 1/2″ MPT x 1/8″ FPT Thermal Relief Valve installs in the bypass line and protects the pump...