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HDPE Flap Valve

    Place of Origin: China

Product Description

Product description:Flap valves are a very traditional method of preventing back flow in pipelines, culverts and other applications to prevent flooding. The HDPE Flap Valves are manufactured using modern materials and the latest manufacturing techniques to ensure the very best products are achieved in the most efficient manner. Due to the unique lightweight properties of the HDPE that is used to manufacture the flap valves, they are very easy to install in comparison to cast iron flap valves.

HDPE Flap Valve

Features and Benifits

1 Easy to install - No grouting required.
2 Light weight due to to the use of HDPE.
3 Virtually maintenance free.
4 Ultra Violet and impact resistant.
5 Standard sizes available for immediate dispatch.

6 Supplied complete with all seals and stainless steel fixings.


Nominal diameter: DN100mm to DN3000mm, other sizes available
Maximum working pressure: 25.0 meter water
Operating temperature: <60℃
Opening angle >90°
Corrosion resistance Yes
Applicable media water, river water, seawater, living water, industrial sewage.

NO. Components Materials Functions
1 Seat HDPE Support
2 Flange HDPE Fasten
3 Gate HDPE Flow Control
4 Seal EPDM Seal
5 Sleeve HDPE Antiabrasion
6 Hinge Pine SS 304 Hinge
7 Nut SS 304 Fasten
8 Cotter Pin SS 304 Fasten
9 Eye Bolt SS 304 Support

Integrate FRP Flange
Usually the flange drilling standard is based on DIN PN6, other standards avaible as ANSI CLASS150/300, DIN PN16/25, JIS10 etc. For special application, please contact GYLDT for detailed design.

The valve plate and the back plate are produced using HDPE. The hinge pin and ballast weight are produced in SS304 as standard. The ballast weight can be easily adjusted if required. The sealing arrangement consists of an EPDM lip seal in the back plate. The valve plate is also installed on an angle in relation to the back plate to ensure a good seal.
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Product Categories : Flap Valve

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