GA Industries
The GA Industries Figure 983 is a Figure 950 Combination Air Valve and a 'surge check' valve factory assembled and tested as a unit.This valve system vents air during filling, admits air during draining and continually releases air that collects in the valve while the system is pressurized and operational.
The surge check's 'slow closing' adjustable regulated exhaust feature minimizes surge, shock and valve damage by controlling the rate at which the air valve closes.Figure 983 valves are recommended at high points in the system where a transient negative pressure condition occurs after pump shutdown or a rapid change in flowing velocity are predicted to occur.
Figure 983-DT is standard with NPT outlet, optional cowl.The Figure 983-DC is standard with an outlet cowl while the Figure 983-DJ has a Class 125 flanged outlet.
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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.