PRESSURE REDUCING VALVES

PRESSURE REDUCING VALVES

The deluge valves in this category all have a manually adjustable pilot fitted for easy and accurate setting of the regulated downstream pressure. The max. rated inlet pressure is 20 bar - and the regulated outlet pressure can be set in the range 3 to 15 bar.

Documents

pdf (DV050 1014C) - GW C300 Sprinkler Valve

(DV050 1014C) - GW C300 Sprinkler Valve

This valve is designed to supply water at constant pressure to a wet automatic sprinkler system. It is typically used where zones with automatic sprinkles shall operate at a lower pressure than provided by the fire pump. The C-300 sprinkler valve has a built in non-return facility which prevents backflow if the valve inlet pressure suddenly drops. When the C-300 valve opens as caused by activated sprinkler heads, an alarm signal by water pressure can activate an alarm gong or pressure switch.

pdf (DV050 1011B) - GW 300 Pressure Control Valve

(DV050 1011B) - GW 300 Pressure Control Valve

This valve is used where a controlled constant pressure is required for a downstream wet system - e.g. water supply to fire hydrants. The valve provides an alarm signal via TP5 port when activated. The valve has no actuator. During set-up (commissioning) the downstream pressure is pumped slightly higher than the pilot set-pressure setting, which will lock the deluge valve closed. In case of a downstream pressure drop the C-300 Pressure Control valve will open and start regulating.

pdf (DV050 1013B) - GW C300 Pump Control Valve

(DV050 1013B) - GW C300 Pump Control Valve

This valve is used where excessive uncontrolled pressure surges from the kick-in of fire pumps shall be avoided. The C-300 Pump Control valve is installed near the fire pump outlet, and is open in the stand-by position. When the fire pump starts, the full flow capacity of the C-300 Pump Control valve is discharged to drain. Immediately at pump start the C-300 valve pilot will monitor the pumped pressure and starts to close untill the pump pressure equals the pilot set-pressure of the C-300 valve, thus providing a controlled fire pump pressure increase to the pipe system - and preventing the damaging effects of surge and water hammer. For optimum pressure surge control the C300 valve should be selected with a flow capacity 1,5 x pump capacity.

pdf (DV050 1006D) - GW C300 Fluid Control Valve, Pressure Reducing

(DV050 1006D) - GW C300 Fluid Control Valve, Pressure Reducing

This valve is used where a constant downstream pressure is required, irrespective of the fire pump pressure. The deluge valve is fitted with a pressure control pilot that constantly monitors the downstream pressure and modulates the C-300 valve elastomeric orifice to open and close and maintain the pre-set downstream pressure.

GW Sprinkler A/S

Kastanievej 15
DK-5620 Glamsbjerg
Denmark

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