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Ductile Cast Iron Flap Valves

    Place of Origin: China

Product Description

Cast iron Flap Valve applicable to water supply and wastewater treatment projects in various pipe and water channel as overflow, check effect, also can be applied to various vertical shaft manhole cover; Only for one-way water flow of round, square or rectangular export, the structure is simple, reliable work, no human operation, usable flange connection, also can connect with embedded parts fixed.

Features and Benifits

  • 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


Nominal diameter: DN100mm to DN3000mm, other sizes available
Maximum working pressure: 25.0 meter water
Operating temperature: <100℃
Opening angle >90°
Corrosion resistance No
Applicable media water, river water, seawater, living water, industrial sewage.

NO. Components Materials Functions
1 Seat Ductile Cast Iron Support
2 Flange Ductile Cast Iron Fasten
3 Gate Ductile Cast Iron Flow Control
4 Seal EPDM Seal
5 Eye Bolt SS 304 Support
6 Bolt SS 304 Support
7 Nut SS 304 Fasten
8 Saddle Ductile Cast Iron Fasten

Integrate Ductile Cast Iron 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.

Detailed design information, please contact GYLDT.

Contact us if you need more details on Ductile Cast Iron Flap Valves. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Flap Valves、Iron Flap Valves. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Flap Valve

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