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BOAX-B Butterfly valve
Butterfly valve


Centred-disc butterfly valve, sealed by elastomer liner (EPDM XC or Nitrile K), with lever, manual gearbox, pneumatic or electric actuator; semi-lug body (T2), full-lug body (T4). Body types T2 and T4 are suitable for downstream dismantling and dead-end service. Valve disc made of nodular cast iron or stainless steel. Connections to EN.
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Main Applications

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Technical Data

  • Nominal pressurePN 6, PN 10, PN 16
  • Max. nominal sizeDN 1000
  • Max. allowed fluid temperature110 °C

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  • Spherically machined disc with rounded sealing contour
    • ensures durable and permanently tight shut-off
  • Splined or keyed connection without play between shaft and valve disc

    Technical Data

    • FunctionShut off/control flow
    • Connection typeFlange
    • Design concept DriveWith electric actuator, With handwheel, Lever, With pneumatic actuator, Without
    • Casing materialEN-GJS-400-15
    • Nominal pressurePN 6, PN 10, PN 16
    • Max. nominal sizeDN 1000
    • Min. nominal sizeDN 40
    • Max. allowed fluid temperature110 °C
    • Min. allowed fluid temperature-10 °C
    • Valve body typeWafer-type body, Semi-lug type, Full-lug type, raised faces, U-shaped body, flat faces

    Sectional Drawings


    TitleFormatSizeLast change
    TitleFormatSizeLast change
    Declaration of conformity - PED (8401.8502_EN)PDF0.415/7/2021
    TitleFormatSizeLast change
    Operating instructions - BOAX - B (8411.801_EN)PDF0.924/19/2021
    TitleFormatSizeLast change
    Type series booklet Coating systems (8425.20_EN)PDF2.287/3/2021
    BOAX-B (8409.11_EN)PDF8.976/1/2021
    Actuator selection BOAX-B (8409.21_EN)PDF14.28/26/2021