EDCO Classic Vacuum Pumps Solenoid Controlled Air-Supply & Blow-Off

The pump base contains two integral, pilot-operated, 3-way air valves which provide full pump control via two solenoid valves. 

With a constant air-supply to the pump base, one solenoid valve controls vacuum on/off while a second solenoid valve controls blow-off air to dissipate vacuum for faster system cycle time.