Flange Duckbill valve

Short Description:

Flange Duckbill Valve Size: DN50 – DN2600 Suitable for PN10, PN16 flange. Product Feature: There are flowing properties for this duckbill valve. Open and close automatically according to water pressure difference safety without noise and no need of human operation and maintenance. Small flow-in pressure and flow regulates naturally as water pressure. Good seal for reverse non-return and no leakage to avoid flow backwards. The better effect with larger pressure. Anti-corrosion, anti-agi...


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Flange Duckbill Valve

Flange Duckbill valve

Size: DN50 – DN2600

Suitable for PN10, PN16 flange.

Product Feature:

There are flowing properties for this duckbill valve.

Open and close automatically according to water pressure difference safety without noise and no need of human operation and maintenance.

Small flow-in pressure and flow regulates naturally as water pressure.

Good seal for reverse non-return and no leakage to avoid flow backwards. The better effect with larger pressure.

Anti-corrosion, anti-aging and longer working service.

Wide size scope and nominal diameter of DN50 – DN2600.

Flange Duckbill valve

Flange Duckbill valve

Requirement for Installation:

  • Generally, we advise customers using duckbill valve of flange type in applying for active jet and socket type for passive jet.
  • The mouth line of the duckbill valve should be vertical to the ground level when installing.  
  • Hoisting equipments are required for duckbill valve larger than DN 800 to ensure the using performance and working service.

Flange Duckbill valve

Flange Duckbill valve

Flange Duckbill valve

Flange Duckbill valve


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