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  • Rubber Duckbill Valve Customizable - China

    price: contact company for price

    Slip On Duckbill Check Valves- XH81A( 2" - 14" )

    Duckbill Check Valves, widely used in the demanding applications of many industries, are precision- molded, one- piece elastomeric valves that provide reliable backflow prevention at low pressure differentials. Duckbill check valves allow free flow with positive differential pressure. With negative differential pressure, backflow is checked. Pressure drop across the valve is a feature unique to Duckbill Check Valves. They can be designed to operate in a few millimeters ( inches) of water to several hundred kPa ( psi) , depending on valve size, geometry and compound characteristics. Duckbill Check Valves are also designed to start functioning at specific opening and closing pressure ranges, depending on your specifications.


    Reliable backflow prevention

    100% elastomeric construction eliminates maintenance

    Will not corrode, warp or freeze open or shut

    1”- 2” Cracking Pressure, Low Head loss

    Custom built for each application based on pressure and flow conditions

    Available in diameters from 1/ 2" ( 12mm) to 14"


    1. The inner diameters are matched to the pipe outer diameter on which installed.

    2. The weight is approximate.

    3. The dimensions are not integrated in the above table, contact GYLDT for more information.

    4. GYLDT will make duckbill valves with any inner diameters upon request.

    5. The usual material of the clamp is stainless steel 304, other material available upon request.

    7. Duckbill valves of dimensions in the above table are available in inventory. Any other dimensions and designs available upon request.


    Prices in above table are for body material to be neoprene, EPDM or nitrile.


    1. When order amount less than $1000, the prices in above table are EXW basis. If CIF by sea needed, GYLDT will ask $500 for all the other costs.

    2. When order amount between $1000 and $5000, the prices in above table are FOB China sea port basis. If CIF by sea needed, GYLDT will ask $200 for all the other costs.

    3. When order amount between $5000 and $20000, the prices in above table are CIF to indicated port by sea basis.

    4. When order amount more than $20000, please contact GYLDT for discount.

    5. When urgent delivery need to be by air, please contact GYLDT for air freight.

    Product Images: XH81A Duckbill Valve

    Company Contact:

    • Phone: 15194603957

    • Address: zhongyuan western jianshe road, zhengzhou, China

    • Email: Email

    Published date: April 14, 2015 -

    • Business Description: Gongyi Liangda Tubes Co., LTD.,(GYLDT) committed itself to the valves and pipe fittings design and production, is the leading manuf acturers and suppliers in China, the product range including:rubber expansion joints, dismantling joints, metal expansion bellows, flap valves and Flanges, etc. Since 2014, GYLDT begins valves and pipe fittings puchasing agent service, we will devote us to supply our clients proper products and best service. GYLDT emphasizes on technology ...

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