Double Hinge Flap Valve
Double hinge flap valves are simple non-return check valves that are installed on pipe outfalls or culverts. As fluids can only go through this valve one way, it prevents debris from flowing back, such as sticks and leaves.
Typically utilised in river, surface/stormwater and treatment works outfalls, the backing flange is cleverly drilled to facilitate either headwall or flange mounting.
Please note: To ensure effective operation, mount the flap valve with sufficient 'fall-away' to prevent the build-up of debris around the invert.
Technical Specification
- Range: DN80 - DN600
- Drillings: BS EN 1092-2:1987 table 9 (PN16). *BS10 table D
- Maximum working pressure: 6.0 metres static on-seat head
- Coating: Blue fusion bonded epoxy (>300µ and WRAS listed)
Features
- Unique lightweight ductile iron design
- Double hinge for optimal sealing
- Durable fusion bonded epoxy coating
- Anti-tamper stainless steel hinge pins
- Bushed hinge links
- Corrosion resistant construction
- Lifting eye as standard
- Drilled to suit flange & wall mounting
- WRAS listed materials
Benefits
- Designed in the UK
- Lightweight
- Robust construction
Datasheets
Knowledge hub
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