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Single Body Combination Air Valve


The GA Single Body Combination Air Valve is a two-valve assembly consisting of an air & vacuum valve and an air release valve. The combination allows the valve to exhaust large amounts of air at start-up, to release small pockets of air while the system is running, and to prevent critical vacuum conditions during draining. The Kinetic feature prevents the valve from blowing shut before all the air is vented. For additional configurations, see Product versions below.

American Iron and Steel compliant version available.

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General information

Product features and benefits

  • Rugged and corrosion resistant
  • Drop tight seating
  • Full length guides ensure proper seating
  • Spherical, stainless steel float
  • Rubber cushions protect float from damage
  • Ensures complete purging of all air prior to valve closure


  • Body, Cover: Cast Iron, ASTM A126 Class B
  • Seat: Buna-N
  • Float Ball: 316 Stainless Steel
  • Float Guide: UHMWPE
  • Cushion: Buna-N
  • Bolts: Steel

Product versions


Product features and benefits
  • 2”-16” with ANSI or ISO flange connection
  • 3/16” diameter orifice for working pressures up to 150 PSI
  • 1/8” diameter for pressure to 300 PSI

Flanged, Anti-Slam

Product features and benefits
  • Incorporates a surge check valve
  • Minimizes slam, system shock, and valve damage
  • For pipelines where fluid velocity can exceed 10ft/sec, where column separation can occur, or at the discharge of large vertical turbine pumps
  • 3” -16” with ANSI or ISO flange connection

Standard NPT

Product features and benefits
  • A single compact, lightweight body
  • ½” to 3” NPT
  • Working pressures up to 300 PSI
  • Water temperatures between 33F and 180F
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9025 Marshall Road
Cranberry Township, PA 16066
United States
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