Flap Gates

Flap gates are used as an efficient backflow  prevention solution in most free discharge applications. These are used for automatic drainage from outfall structures to river , estuaries and sea and for preventing reverse flow flood / tide from river, estuary and sea to plant. These are gravity operated and need minimal water pressure for operation. The flap opens when the head in pipe or conduit exceeds 0.2 feet above the head in the receiving body of water. The flap closes when the head in the receiving body of water exceeds the head in the pipe or the conduit. When fully open the flap gate offers a very low head loss.  These are offered in varied designs and various materials of construction such as Cast Iron / Ductile cast iron / Stainless steel / Super Duplex stainless steel / HDPE / Composite etc to suit the intended application.

SERIES : A-601 – CAST IRON FLAP GATES
Opening Size range 100 mm to 750 mm Higher sizes on request
Head Range Seating head up to 6 m.
Applicable Standards As per Jash design.
Mounting Face Wall Anchored
Sealing system Resilient Seal arrangement
Technical Features Click to open
Drawing & Data Sheet Click to open
SERIES : A-602 – CAST IRON FLAP GATES (FC-AC & FV-ACP)
Opening Size range 300 mm to 1500 mm (FV-ACP design) 300 mm to 2700 mm (FV-AC design) Higher sizes on request
Head Range Suitable for high seating head as per requirement.
Applicable Standards As per Jash design.
Mounting Face Wall Anchored
Sealing system Resilient Seal arrangement
Technical Features Click to open
Drawing & Data Sheet Click to open
SERIES : A-603 – CAST IRON FLAP GATES (FV – AR)
Opening Size range 300 mm to 2700 mm Higher sizes on request
Head Range Suitable for high seating head as per requirement.
Applicable Standards As per Jash design.
Mounting Face Wall Anchored
Sealing system Resilient Seal arrangement
Technical Features Click to open
Drawing & Data Sheet Click to open
SERIES : A-611, 612 – STAINLESS STEEL FLAP GATES
Opening Size range 300 mm to 2700 mm Higher sizes on request
Head Range Suitable for high seating head as per requirement.
Applicable Standards As per Jash design.
Mounting Face Wall Anchored
Sealing system Resilient Seal arrangement
Technical Features Click to open
Drawing & Data Sheet Click to open
SERIES : A-641, 642 – HDPE FLAP GATES
Opening Size range 300 mm to 1500 mm Higher sizes on request
Head Range Suitable for low head conditions.
Applicable Standards As per Jash design.
Mounting Face Wall Anchored
Sealing system Resilient Seal arrangement
Technical Features Click to open
Drawing & Data Sheet Click to open
SERIES : A-652 – COMPOSITE FLAP GATES
Opening Size range 300 mm to 2700 mm Higher sizes on request
Head Range Suitable for low head conditions.
Applicable Standards As per Jash design.
Mounting Face Wall Anchored
Sealing system Resilient Seal arrangement
Technical Features Click to open
Drawing & Data Sheet Click to open
SERIES : A-672 – FLEXIBLE FLAP GATES
Opening Size range 300 mm to 1200 mm Higher sizes on request
Head Range Suitable for low head conditions.
Applicable Standards As per Jash design.
Mounting Face Wall Anchored
Sealing system Resilient Seal arrangement
Technical Features Click to open
Drawing & Data Sheet Click to open