In-line check valve is mounted between the strainer and meter assembly to help increase air eliminator efficiency by creating additional back pressure and help reduce the reverse back flow.
655 Electronic Control Valve
A normally closed two-stage diaphragm preset valve for use with electronic relay control. Stainless steel or brass pilot valves are available. Dimensionally interchangeable with the 650 Hydraulic Preset Valves.
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.