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Double Eccentric Butterfly Valve DN100 to DN2400 - China Suppliers and Factory for Efficient Water Network Solutions

The Double Eccentric Resilient Seated Butterfly Valve is a leading choice among water network solutions. Designed with a unique disc that shifts its center along two axes, this valve significantly reduces operating torque values, minimizes friction on the disc sealing area, and enhances service life. As a prominent manufacturer in China, our factory specializes in producing high-quality valves, making us a trusted supplier for businesses seeking reliable water management products. Choose our Double Eccentric Butterfly Valve for optimal performance and durability in your water systems

    Double Eccentric Butterfly Valve Product Features

    1. GGG40/50 Ductile Iron Body & Disc allows high impact and streching resistance

    2. Double Eccentric / Double Offset Disc Design

    3. Resilient Seated Type

    4. Disc sealing ring EPDM as default. NBR or VITON options are available

    5. Block moulded solid/one-piece T-shaped disc sealing ring extends drop-tight sealing life time

    6. Easy to replace disc sealing ring without dismantling the valve from the pipeline and without dismantling the disc from the valve itself just by taking out the retaining ring through its bolts. Iit is easy to replace the disc sealing ring without any additional equipments

    7. SS308/316 grade stainless steel welding seat on the body is manufactured through automatic welding machines and microfinished precise milling operation. When disc is fully closed, disc sealing ring applies equal pressure on every point on the welding seat.

    8. Drop-tight closure

    9. Double O-ring feature on both shafts ensures high sealing

    10. Shafts are equipped with bronze bushings having high corrosion resistance

    11. Ensures minimized pressure loss and increased energy efficiency with double shaft design

    12. With the o-rings on the bearing bushings, disc pin holes are protected against corrosion. Dry shaft up to request.

    13. Easy to operate with self locking gearbox equipped with mechanical indicator

    14. Low torque requirements during operation

    15. Easy to install on the line, light weight and occupies less space

    16. Full coating on the body and disc internally & externally with an average of 250 microns. Higher coating thicknesses are available when required.

    17. WRAS approved coating available upon request which meets hygienic requirements for potable water applications

    18. Maintenance free design for the valve and gearbox

    19. Default operation is gearbox with ISO top flange ready to connect electrical actuator. Pneumatic actuators can be installed directly on the top flange of the valve itself.

    20. V106 Double Eccentric Butterfly valves are deisgned bi-directional according to EN1074-2. For proper installation, direction arrow on the body should be considered.

    21. Operation with extended spindle version is also available

    22. Balanced positioned lifting holes on the body ease transportation and installation.

    23. Hydrostatic test pressure for seat: PN x 1.1 , for shell: PN x 1.5 according to EN 12266-1.

    Product Display

    Frequently Asked Questions

    What materials are used for the body and disc of the valve?
    The body and disc are made of GGG40/50 Ductile Iron, which allows high impact and stretching resistance.
    What is the default material for the disc sealing ring?
    The disc sealing ring is EPDM by default. NBR or VITON options are also available depending on your requirements.
    Is it difficult to replace the disc sealing ring?
    No, it is easy to replace the disc sealing ring without dismantling the valve from the pipeline and without dismantling the disc from the valve itself. You just need to take out the retaining ring through its bolts, requiring no additional equipments.
    Is this valve suitable for potable water applications?
    Yes, a WRAS approved coating is available upon request, which meets hygienic requirements for potable water applications.
    Can pneumatic actuators be installed on this valve?
    Yes. The default operation is a gearbox with an ISO top flange ready to connect an electrical actuator, but pneumatic actuators can also be installed directly on the top flange of the valve itself.
    What are the hydrostatic test pressures for this valve?
    According to EN 12266-1, the hydrostatic test pressure for the seat is PN x 1.1, and for the shell is PN x 1.5.