GW - Model C300 -Fluid Control Valve Non Regulating with Strainer & Restrictors

This is a hydraulically operated elastomeric sleeve valve. It is typically fitted into a fire water main – or section branch pipe, where a controlled opening and/or closing performance is called for. Installation can be either horizontally or vertically.

The GW C-300 deluge valve is “self-powered” – and utilizes the system upstream (inlet) pressure to hydraulically open and close. The valve will interface with an actuator or solenoid valve (not supplied) to provide a simple robust on/off valve for the controlling of water supplies.

The linear “straight thru” valve design with the aqua-dynamically shaped fingers provides a remarkable low pressure drop across the valve, in the fully open position.

This elastomeric sleeve type valve is normally closed, and is maintained in the closed position by diverting upstream water directly to the flow control sleeve cavity. This is accomplished by an interfacing actuator or solenoid valve (to be fitted between port TI and TO).

Upon instruction the actuator /solenoid switches to open position and water is allowed to drain from within the sleeve cavity, thus releasing the hydraulic pressure that seals the sleeve against the seat. The deluge valve opens in a controlled way as upstream pressure lifts the sleeve off the seat and water starts flowing through the valve, gradually expanding the elastomeric flow control sleeve.

The opening (and closing) speed is adjustable via restrictors controlling the in and out flow to the sleeve cavity, thus preventing surge, water hammer and damage to downstream pipework and components.

The valve is maintained in the open position as long as water is allowed to drain from the sleeve cavity. The valve can be (remotely) reset (closed) by switching the actuator/ solenoid to closing position, thus allowing water to flow into the sleeve cavity, building up pressure and contracting the elastomeric sleeve against the core seat in the center of the valve casing.