GA Industries
VAG GA Industries Figure F990-D Vacuum Breaking Valves are air inlet only valves.They are normally closed and automatically open to admit air whenever the pipeline or system pressure falls approximately 0.25 PSI below atmospheric.The valves open as far as necessary to admit air at the rate needed to limit the vacuum condition and re-close when the system pressure recovers above the opening pressure.
Figure F990-D Vacuum Breaking Valves are typically installed at system high points where negative pressure first develops during system draining and/or where column separations are predicted to occur.They can also be installed adjacent to air & vacuum valves or combination air valves to supplement those valves' air inflow during uncontrolled pipeline draining.
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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.
