GA Figure 945:

Combination Air Valve for Water, Single Body

Size: 1/2" to 4"
Valve Type: Air Valve
Fluid: Water

VAG GA Industries Figures 945-T Combination Air Valves are 'triple function' valves.They vent air from pipelines and systems as they are being filled with water and then close tight once the system is full and pressurized.They also release air that accumulates in the valve while the system is operational.And, they automatically open to admit air to limit vacuum formation when the pipeline or system is drained and/or a negative pressure occurs in the valve.

The Figure 945-T Combination Air Valves are typically installed at high points in the system where air naturally rises during filling and in operation and vacuum first forms during draining.

  • Compact and light weight
  • Full port orifice for maximum air outflow and inflow
  • Utilizes “kinetic” operating principle, designed not to blow shut
  • Rugged iron body and cover
  • Corrosion resistant Type 316 stainless steel float
  • Tight sealing and easily replaceable rubber seats
  • Body & Cover: Cast Iron, ASTM A126 Class B
  • Floats: Stainless Steel, Type 316
  • Internal Linkage: Stainless Steel, Type 316
  • Replaceable Seats: Buna-N
  • External Fasteners: Zinc Plated Steel
Corrosion Protection
  • Standard: Uncoated internal, external coated with enamel primer, minimum 2 mil DFT
  • Optional: 316 SS external fasteners and Internal/external NSF-61 certified 2-part epoxy, minimum 6 mil DFT.
Drawings and Parts List
Figure 945 1/2-1in Drawing ECAV7136W-B
Figure 945 2in Drawing ECAV7137W-B
Figure 945 3in Drawing ECAV7138W-B
Figure 945 4in Drawing ECAV7134W-B
Installation, Maintenance and Operating Instructions
IOM Figure 945 1/2"-1" 022420A
IOM Figure 945 2" 022420A
Product Bulletin
Air Valve Bulletin VAG16 LR
Sample Specification
Combination For Water Rev B
Technical Datasheet
Air Valve Sizing For Pipeline Filling and Draining
Figure 945 Data Sheet 945-01H
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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 945:
Combination Air Valve for Water, Single Body
GA Figure 945 Image
Size: 1/2" to 4"
Valve Type: Air Valve
Fluid: Water

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