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.