The air check valve operates on differential pressure, closing when air is present. Designed to increase air eliminator efficiency during product depletion.
757 Differential Pressure Valve
The diaphragm differential pressure control valve has a normally closed, spring loaded design. Provides a constant 15 PSI differential pressure and controls flow when vapor is sensed. Security and 2-stage solenoid valves are available upon req [...]
650 Hydraulic Preset Valve
A normally closed, hydraulically balanced piston control valve allows for auto-batch preset deliveries. The inline, two–stage control valve is mechanically linked to Veeder Root Preset Counter.