GA Figure 931T:

Slow Closing Air & Vacuum Valve for Water, NPT

Size: 1/2", 1" and 2" NPT
Valve Type: Air Valve
Fluid: Water

VAG GA Industries Figure 931-T is a Figure 930-T Air & Vacuum Valve and a bronze 'surge check' valve factory assembled and tested as a unit.This valve system vents air during filling and admits air during draining.Pus, the surge check's 'slow closing' regulated exhaust feature minimizes surges, shock and valve damage caused by sudden air valve closure due to column separation/rejoining.

Figure 931-T is standard with NPT inlet and outlet, optional outlet cowl.The 1" and 2" can be supplied with optional flanged inlet.

Characteristics
  • Compact and lightweight
  • Full port orifice for maximum air outflow and inflow
  • Tight sealing and easily replaceable rubber seat
  • Surge check automatically closes upon excessive air discharge rate to minimize surge and protect air valve
Material
  • Air & Vacuum Valve Body and Cover - Cast Iron, ASTM A126 Class B
  • Air & Vacuum Valve Float: Stainless Steel, Type 316
  • Air & Vacuum Valve Valve Seat: Rubber, Buna-N
  • Air & Vacuum Valve External Fasteners: Zinc Plated Steel (Optional 316 Stainless Steel)
  • Surge Check: Lead Free Bronze
Corrosion Protection
  • Air & Vacuum Valve standard with internal and external NSF-61 certified 2-part epoxy
  • Optional 316 Stainless Steel external fasteners
Downloads
Technical Datasheet
Figure 931T Data Sheet 931-02B
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Clean Water

Dependable valves that meet your clean water needs

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.

GA Figure 931T:
Slow Closing Air & Vacuum Valve for Water, NPT
GA Figure 931T Image
Size: 1/2", 1" and 2" NPT
Valve Type: Air Valve
Fluid: Water

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