GA Industries
GA industries Figure 993-D Vacuum Breaking and Air Release Valves are specially designed for use with sewage and other solids bearing fluids.They consist of a large orifice vacuum breaking valve and a small orifice air release valves factory assembled and tested as a unit.
The large orifice valve opens to rapidly admit air into the pipeline or system during negative pressure conditions such as column separation to limit the vacuum and then closes when the pressure recovers to atmospheric.The air is then slowly released through the small orifice as the system re-pressurizes to minimize the consequences of column rejoining.
The valve is standard 3" to 8" sizes with Class 125 flanged connection.Larger sizes and higher pressures are available.
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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.