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Double Eccentric Butterfly Valve（AWWA C504）

 It will make the valve has a nonstop fixing surface on the circle and make the valve didn't touch the seat at all when it is completely opens. This plan will make the seat encounter a less grating and accordingly will delay its lifetime. In common application, this twofold balance butterfly valve is restricted to class 150.
The double eccentric  butterfly valve`s sealing ring is made of elastomer fit in disc, it availabe be used in unidirectional sealing application, Commonly used in the water or municipal water appliacation.

  • Design Feature


    • Replaceable seal on disk

    • Less seat wear, Low torque

    • Super long usage life

    • Renewable sealing ring

    • Epoxy paint body&disc

    • ISO 5211 top flange

    • Zero leakage

  • Design Standard


    • Design: AWWA C504

    • Face to face: ANSI B16.10 / ISO5752-13

    • Flange end: ASME B16.5 / ASME B16.47 / EN1092-2

    • Test: API598

  • Technical Specification


    • Size: 4”~80”(DN100~DN2000)

    • Class: 150Lb(PN10,PN16,150PSI,165PSI,225PSI)

    • Connection: Double Flange

    • Operation: Worm Gear / Electric actuator 

    • Temperature: -20°C to +80°C

    • Application: Municipal water / Sea water / Water Supply Service

  • Material Option


    • Body: Cast iron / Ductile iron

    • Disc: Cast iron / Ductile iron

    • Stem: SS420

    • Disc sealing: EPDM / NBR

    • Body seat: Seat with SS304

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