Compact Wastewater Air Valve

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Compact double orifice air valve. Please see below our Working with Air Valves document and our Compact Air Valves datasheets under the Option Comparison tab. 


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Orders placed by 4pm have same working day dispatch and next working day delivery, selected models only

Grouped product items
Type Code Band Price Quantity Delivery Status
2" BSP PN16 AQ/AV25 B
£964.80 £804.00


Compact double orifice air valve, having three functions:

  • Efficient release of air to prevent pressure build-up
  • Ingress of air to prevent vacuum, in the pipe system
  • Controlled bleed of air to maintain system stability

Suitable for wastewater and sewage applications


Technical Specification

  • Inlet: 2" BSP
  • Maximum working pressure: 16 Bar
  • Hydrostatic Pressure Tests:
    Seal: 1.1 x PN (17.6 Bar)
    Body: 1.5 x PN (24.0 Bar)
  • Temperature range: -10°C to 70°C, insulate at 0°C and below
  • Coating: Blue fusion bonded epoxy (WRAS listed)


  • Isolating gate valve (recommended)
  • Engineered surge alleviation protection
  • Flanged inlet
  • Rapid fill protection


  • Unique lightweight ductile iron design
  • Directly acting stainless steel float
  • Excellent outflow performance
  • Sloped float chamber
  • Corrosion resistant construction
  • Tapped outlet cowl for piped outflow
  • Drainage valve as standard
  • Robust low maintenance design
  • Available in stainless steel (price on request)

* We can also supply accessories, such as, isolating gate valve and inflow/outflow check valve.

Type Code Weight (kg) Curve Price PDF Delivery Status Compare

2" BSP PN16




£964.80 £804.00


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  • Same day dispatch
  • Lead times may apply
  • DN: Nominal Diameter



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