Air/Vacuum Clean Water Valves

Air/Vacuum Valves, often referred to as “large orifice valves”, are used to allow large volumes of air to be exhausted from or admitted into a water pipeline as it is being filled or drained. When draining the pipeline, the float drops, allowing air to enter, preventing loss of pressure, possible pipeline collapse and damaging water column separation.



1/2″ – 20″
 up to 740 psig (5100 kPa)
ASTM A126 Class B cast iron for Class 125 and Class 250 valves. Class 300 ductile iron valves shall be constructed of ASTM A536 Grade 65-45-12 ductile iron. Class 300 steel valves shall be constructed of ASTM A216 Grade WCB cast steel
Benefits and features
  • Unconditionally guaranteed T316 stainless steel floats
  • Stainless steel 316 internal trim
  • Exclusive high/low pressure resilient seating
  • Full pipe size inlets and outlets provide maximum protection
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Air Release Wastewater

Combination Clean Water Valves

Combination Wastewater

Combination Wastewater Valves
Vacuum Breaker
Vacuum Breaker Air Valves