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    Concentric butterfly valve HOME >> PRODUCTS >> Butterfly Valve

    Product Description

    Product Feature

    Concentric structure, with pin on the through shaft or pinless double half shaft design.

    Disc has two way bearing, no installation direction requirements.

    End flange can meet different connection standards.

    Backed replaceable seat with good performance and a longer working life.

    Easy installation, no need flange gasket.

    Technical Parameters

    Nominal diameter: 600~1200 600~1200

    Nominal pressure: 1.0 1.6

    Testing pressure: Shell(Mpa) 1.5 2.4

    Seal(Mpa): 1.1 1.76

    Suitable temperature: -40°C~200°C

    Suitable medium: Drinking water,sewage,seawater,food,medicines,gas,oil and acid

    Main Raw Material

    Body:Cast iron, Ductile iron, Carbon steel,CF8M

    Disc: Plated ductile iron, CF8, Aluminum bronze

    Stem: Stainless steel  

    Seat: EPDM/NBR, WRAS-EPDM,Viton ,Silicon

    Actuator: Lever, Gearbox,Hand wheel, Pneumatic, Electric

    1.Replaceable backed seat

    2.Pin disc/Pinless Nylon disc/Epoxy disc


    Reference Standard

    Design standard API 609

    Testing standard API 598

    Top flange standard ISO5211

    End flange standard DIN PN10 / PN16,ANSI 125# / 150#,BS4504 PN10 / PN16

    Face to face standard API 609,EN558-1 20 Series,ISO5752 20 Series