Thermal overload protection with auto reset.
). Valve,Actuated Butterfly,2-1/2",PVC/FKM 10 Second cycle time 1-1/2" – 4", 25 second cycle time 6" and 8" (appx. Mechanical brake supplied as standard for 6"and 8" Type-57.Type 4X/7 diecast aluminum w/ powdercoat finish enclosure.