- Home
- Companies
- GW Sprinkler A/S
- Products
- GW - Model C300 - Automatic Water ...
GW - Model C300 -Automatic Water Control Valve Non Regulating (w. Strainer & Restrictors) with Solenoid (Electrical Actuation)
This valve is used where a controlled and smooth opening and closing of the deluge water supply is called for. The valve`s adjustable restrictors can be set to provide the opening- and closing speed desired, to prevent the damaging effects of reaction forces and water hammer. The valve is fitted with an external heavy duty solenoid valve to facilitate reliable electrical activation. The solenoid is fitted with a latch that locks the deluge valve open when activated, thus requireing manual re-setting to close.
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 closing is required. 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 close and open. It is activated electrically via the solenoid, to trip upon signal from the detection system /panel or manually activated switch.
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.
The GW C-300 deluge 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 the 3/2 way solenoid, mounted on the deluge valve, in the de-energized (NC) state.
Upon instruction (energizing), the 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 providing a balanced valve performance, preventing water hammer and damage to downstream pipework and components.
The solenoid is latched in the open position, hence the GW C-300 deluge valve will remain open until manually re-set. Resetting is done by de-energizing the solenoid, followed by pushing the latch from axial to perpendicular position. This will switch the solenoid to closed position, to block the drain and allow water to pressurize the sleeve cavity, thus contracting the elastomeric sleeve against the core seat in the center of the valve casing – closing the deluge valve.
The GW C-300 deluge valve can be manually activated by opening the manual release valve (1/2” Ball Valve) fitted at the bottom of the valve body.