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Vacuum Breaking Valve


The GA Wastewater Vacuum Breaking Valve prevents critical vacuum conditions during system draining for water, wastewater, and sewage. The air inlet is supplied with a hood and screen to minimize entry of foreign material. 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 shutoff
  • Adjustable opening pressure
  • Protective hood and screen


  • Body, Disc: Cast Iron, ASTM A126 Class B
  • Body Seat: 316 Stainless Steel
  • O-Ring: Buna-N
  • Disc Arm: Ductile Iron ASTM A536, Grade 65-45-12
  • Cover: Steel
  • Shaft: Stainless Steel
  • Bushing: Bronze
  • Screen: Stainless Steel

Product versions


Product features and benefits
  • Two valve assembly including a wastewater vacuum breaking valve and a short body wastewater air release valve
  • 2-1/2”-24” Class 125 or 250 flanged
  • 5/16” orifice for pressure up to 75 PSI
  • 3/16” orifice for pressure up to 150 PSI


Product features and benefits
  • 2-1/2”-24” Class 125 or 250 flanged
  • Pressures up to 400 PSI
  • Temperatures to 150°F
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9025 Marshall Road
Cranberry Township, PA 16066
United States
+1 724-776-1020 +1 724-776-1254 Write e-mail