The ASCO AH4E Low-High-Off Hydramotor is a push-type, self-contained, electrohydraulic linear actuator featuring dual internal control valves for repeatable positioning.
The low-fire position is field adjustable to any position between 15% and 100% of stroke. When power is applied, the actuator shaft travels to the low-fire position. After an external switch completes the low-fire controller circuit, the shaft continues to the high-fire setting.
Opening the external switch returns the shaft to the low-fire setting, and power interruption fully closes the valve in 1 second or less from any position.
The AH4E Low-High-Off Hydramotor/V710(B) gas valve combination provides main line control for boiler, furnace, and oven applications plus industrial and commercial burners.
Features- Broad ambient temperature range suitable for hot (150° F/66° C) or frigid (-40° F/-40° C) environments
- Slow- or fast-opening constructions make it suitable for a variety of applications
- Type 1 General Purpose enclosure standard, optional Type 4 Watertight enclosure available for outdoor or indoor wash down installations
- Rugged construction ensures high reliability and durability
- Visual indication of valve open & closed position is standard
- Optional electrical interlock proof of closure switch is available
- Mountable in any position for installation flexibility
- UL Listed, FM Approved, CSA Certified