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Double hinge flap valve, DN80-DN600

Flap valves are simple check valves installed on pipe outfalls or culverts to prevent debris from flowing back, such as sticks and leaves. The backing flange is cleverly drilled to faciliate either headwall or flange mounting.

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

Type Product Code Weight**
kg
Datasheet Band Price Quantity Delivery Status
DN80 AQ/FLAP80 5 kg datasheet B
£68.00
DN100 AQ/FLAP100 6 kg datasheet B
£96.00
DN150 AQ/FLAP150 11 kg datasheet B
£143.00
DN200 AQ/FLAP200 16 kg datasheet B
£203.00
DN225 AQ/FLAP225 20 kg datasheet B
£258.00
DN250 AQ/FLAP250 23 kg datasheet B
£296.00
DN300 AQ/FLAP300 32 kg datasheet B
£403.00
DN350/375 AQ/FLAP350 34 kg datasheet B
£558.00
DN400 AQ/FLAP400 49 kg datasheet B
£609.00
DN450 AQ/FLAP450 56 kg datasheet B
£800.00
DN500 AQ/FLAP500 68 kg datasheet B
£1,013.00
DN600 AQ/FLAP600 93 kg datasheet B
£1,240.00
Type Product Code Weight**
kg
Datasheet Band Price Quantity Delivery Status
DN80 AQ/FLAP80 5 kg datasheet B
£68.00
DN100 AQ/FLAP100 6 kg datasheet B
£96.00
DN150 AQ/FLAP150 11 kg datasheet B
£143.00
DN200 AQ/FLAP200 16 kg datasheet B
£203.00
DN225 AQ/FLAP225 20 kg datasheet B
£258.00
DN250 AQ/FLAP250 23 kg datasheet B
£296.00
DN300 AQ/FLAP300 32 kg datasheet B
£403.00
DN350/375 AQ/FLAP350 34 kg datasheet B
£558.00
DN400 AQ/FLAP400 49 kg datasheet B
£609.00
DN450 AQ/FLAP450 56 kg datasheet B
£800.00
DN500 AQ/FLAP500 68 kg datasheet B
£1,013.00
DN600 AQ/FLAP600 93 kg datasheet B
£1,240.00
Same working day dispatch (Ordered before 4pm)
Lead time applies

DN: Nominal Diameter

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Product Information

Double hinge flap valve, DN80-DN600

Metal seat double hinge flap valve with a circular aperture to prevent backflow in outfall applications.

Typically used in river, surface/storm water and treatment works outfalls.

Technical Specification
  • Range: DN80-DN600
  • Drillings:BS EN1092-2 1987 Table 9 (PN16) *BS10 Table D
  • Maximum pressure: 6.0 metres static on-seat head
  • Coating: Blue fusion-bonded epoxy  (WRAS listed) 
Features
  • Unique lightweight ductile iron design
  • Double hinge for optimal sealing
  • Durable fusion bonded epoxy coated
  • Anti-tamper stainless steel hinge pins
  • Bushed hinge links
  • Corrosion resistant construction
  • Lifting eye as standard
  • Drilled to suit flange and wall mounting
  • Optional fasteners

 

Handy Hint! To ensure effective operation mount the flap valve with sufficient 'fall-away' to prevent the build-up of debris around the invert.