GA Industries Figure 3670-DR Altitude Valves are self-contained, hydraulically operated, differential piston actuated valves.The valves are installed on the tank fill line and reliably close when the tank is full to prevent overflow and automatically re-open to replenish the tank when the water level falls 6” to 12” below maximum.The backpressure pilot throttles the valve as needed to sustain a minimum inlet pressure.
The valve’s unique V-port trim provides semi-linear flow control while opening and closing for ideal surge control plus full port capacity to minimize head loss.
GA Industries Figure 3670-DR altitude valves are often installed on low level ground storage tanks to sustain the upstream system pressure while the tank is being filled.
The valve can be supplied with an optional solenoid to override the hydraulic controls and close the valve anytime upon electrical signal and/or a differential level pilot to delay re-opening in order to allow tank drawdown.
GA Figure 3200:
Altitude Valve, Single Acting, Flanged, Piston-Operated
GA Figure 3300:
Altitude Valve, Double Acting, Flanged, Piston-Operated
GA Figure 3400:
Altitude Valve, Single Acting with Stop Check, Flanged, Piston-Operated
GA Figure 3670-DR :
Backpressure Sustaining Single Acting Altitude Valve
GA Figure 3800:
Altitude Valve, Single Acting with Solenoid Shutoff, Flanged, Piston-Operated
GA Figure 3900:
Altitude Valve, Double Acting with Solenoid Shutoff, Flanged, Piston-Operated
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From the raw water intake to the filtration plant to the finished waster distribution and storage system, GA Industries valves have been providing dependable service in large and small water systems. GA Industries pump control, check and relief valves mitigate damaging pressure surges and eliminate slam and bang that can result from the operation of water pumps.
Our full range of pilot operated control valves regulate distribution system pressure and prevent overflow of storage tanks and reservoirs. Air trapped in water pipelines can reduce system efficiency and exacerbate pressure surges. Our wide range of automatic air valves ensures we have the right valve to maintain an air free system.
And when it’s necessary to isolate a pump, process or section of pipeline, you can depend on GA Industries butterfly valves for reliable flow shutoff.