Wastewater Air Valve
Our three function double Wastewater Air Valves control the ingress, discharge and bleed of accumulated gasses into pipelines to protect them from damaging vacuums and water hammer caused by pressure fluctuations; maintaining a stable system for more efficient flow.
They have a robust and low maintenance design, constructed from strong and lightweight ductile iron.
See our Working with Air Valves document for more information.
Product Information
Wastewater Air Valve
Technical Specification
- Range: DN50 - DN200
- Flanges & drillings: BS EN1092-2 1987 table 9 (PN16)
- Maximum working pressure: 16 bar
- Hydrostatic pressure tests:
- Seat - 1.1 x PN (17.6 bar)
- Body - 1.5 x PN (24.0 bar)
- Temperature range: -10°C to 60°C, insulate at 0°C and below
- Coating: Blue fusion bonded epoxy (>300µ and WRAS listed)
Features
- Unique lightweight ductile iron design
- Directly acting float mechanism
- Corrosion resistant construction
- Drainage valve as standard
- Robust low maintenance design
- Large sloped float chamber
- Also available in stainless steel
- Tapped cowl available for piped outflow
Benefits
- Innovative design
- Robust design
- Excellent performance
- Corrosion resistant
Options
- Isolating gate valve (recommended)
Applications
Sewage Treatment Works