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211-02 Altitude Valve - Two-Way Flow w/Delayed Opening on Return Flow

211-02 Altitude Valve - 2-Way Flow w/Delayed Opening on Return Flow

[211-02]

The Cla-Val Pacific Model 211-02 Altitude Valve controls the high water level in reservoirs without the need for floats or other devices. It is a non-throttling valve that remains fully open until the shut-off point is reached. This valve closes at the high water level, and for return flow, delays its opening until the pressure at the valve inlet lowers to a preset adjustable pressure of one to seven pounds.

The CDS7 pilot control operates on the differential in forces between a spring load and the water level in the reservoir. When the force of the spring is overcome by the force of the reservoir head, the pilot closes the main valve. The desired high water level is set by adjusting the spring force. The pilot control measures the reservoir head through a customer supplied sensing line* connected directly to the reservoir.
 
This valve can also be furnished with auxiliary controls to meet the need for multiple functions, such as: pressure sustaining, pressure reduction, rate of flow control, solenoid override, etc.
 
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