GA Figure 955-T, 955-D:

Combination Air Valve for Sewage Dual Body

Size: 2" x 1" to 6"
Valve Type: Air Valve
Fluid: Wastewater

GA Industries Figures 955 Dual Body Combination Air Valves consist of a sewage air release valve factory piped to a sewage air & vacuum valve.It vents air from pipelines and systems as they are being filled with water and then closes tight once the system is full and pressurized.It also releases air and sewage gas that accumulates in the valve while the system is operational.And, it automatically opens to admit air to limit vacuum formation when the pipeline or system is drained and/or a negative pressure occurs.

The Figure 955L provides a larger orifice for faster release air and gas on systems operating at 75 PSI or lower.

Figure 955F includes optional “back flushing attachments” to facilitate cleaning sludge and debris from the valve.

  • Dual elongated bodies to minimize fouling and spillage
  • Full port large orifice for maximum air outflow and inflow
  • Individual isolating ball valves
  • Rugged cast iron body and cover
  • Corrosion resistant Type 316 stainless steel floats
  • Tight sealing and easily replaceable rubber seats
  • Body & Cover: Cast Iron, ASTM A126 Class B
  • Float: Stainless Steel, Type 316
  • Internal Linkage: Stainless Steel, Type 316
  • Replaceable Seat: Buna-N
  • External Fasteners: Steel, A307, Zinc Plated
Corrosion Protection
  • Standard: Uncoated internal, external coated with enamel primer, minimum 2 mil DFT
  • Optional: 316 SS external fasteners and internal and external NSF-61 certified 2-part epoxy, minimum 6 mil DFT
Drawings and Parts List
Fig 955 NPT Valve Drawing ECAV7000W-A
Fig 955-D FLG Valve ECAV7130W-A
Figure 955F NPT Valve with Backflush Drawing ECAV7000FW-A
Product Bulletin
Air Valve Bulletin VAG16 LR
Sample Specification
Dual Body Combination For Sewage Rev B
Technical Datasheet
Air Valve Sizing For Pipeline Filling and Draining
Figure 955T Data Sheet 955-01C
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Reliable wastewater valves designed for rigorous service

GA Industries sewage and wastewater valves are specially designed to accommodate the rigorous demands of the sewage collection, pumping and treatment process.

Whether a large regional sewage pump station, a small lift station or in-plant process pumping, GA Industries line of wastewater check, pump control and surge relief valves provide reliable service under difficult operating conditions. GA Industries ECO-Centric® plug valves handle solids and stringy material and are used in sewage and wastewater systems for pump, pipeline or process isolation.

Our full range of sewage and wastewater air valves automatically release air and sewage gas from forcemains to maintain pumping efficiency and minimize pipeline corrosion.

GA Figure 955-T, 955-D:
Combination Air Valve for Sewage Dual Body
GA Figure 955-T, 955-D Image
Size: 2" x 1" to 6"
Valve Type: Air Valve
Fluid: Wastewater

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