ASCO™ Series H137 Hydramotor Valves

The ASCO Series H137 is a cast-iron bodied safety shutoff valve with electrohydraulic actuator for on-off control of combustion gas. It is designed for boilers, industrial furnaces, dryers, dehydrators, large conversion burners, air heaters, and similar applications. The self-contained Hydramotor actuator is a powerful, pull-type hydraulic ram providing output force of 1,400 pounds to fully open the valve. Upon current interruption, dual-redundant relief valves dump hydraulic pressure, closing the valve in 1 second or less.