The Plast-O-Matic Quick Dump Valve is designed for use in wet benches where the liquid in the sink has to be drained as quickly as possible. The valve is cemented or fused directly into the drain, depending on the material. A spring or air-loaded piston keeps the valve closed bubble-tight with up to 25” of water. A u-cup dynamic shaft seal eliminates sticking and allows smooth, instant movement of the piston. The outflow area is designed to provide superior drainage performance.

Standard operation is normally closed (air x spring) and opened with air pressure controlled by a remote 3-way solenoid valve. When air pressure is relieved, a non-wetted internal spring automatically closes valve. 40 PSI is required to fully open the air x spring version; maximum air pressure is 80 PSI.

The valve can be ordered, or easily converted to, a double-acting (air x air) design. In the double acting design, a remote 4-way air solenoid valve is used to control air pressure to open, and air pressure to close. Air x air requires 15 PSI to open full stroke, 20 PSI to close bubble-tight against 25" of water column. The air x air version can be used for much higher head pressure by increasing the air pressure used; maximum air pressure is 80 PSI.

Series IDA provides up to 50% greater flow capacity and requires less air pressure to operate. Higher flows translate into less particle adhesion to tank sidewalls and higher purity; lower air pressure permits installation flexibility. The valve is designed to the Plast-O-Matic "Million Cycle Life" standard under laboratory conditions; actual longevity may vary greatly depending on the application. A kit is available to replace all seals, the seat, and spring to rebuild Series IDA as necessary.

Materials of Construction:

Valve body, housing, piston & cylinder are choice of natural polypro, Kynar PVDF, or Geon PVC. Elastomers are choice of EPDM or FKM (Viton). In the normally-closed version, the spring (non-wetted) is 316 stainless steel. For other plastics or elastomers, please consult factory.