BOAX-B Butterfly valve

Butterfly valve BOAX-B

Centred-disc butterfly valve with ISO 5211 compliant square shaft end, sealed by elastomer liner (EPDM XC / XU 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

  • Spray irrigation systems
  • Domestic water supply
  • Water extraction
  • Hot-water heating systems

Technical Data

Nominal pressure
PN 6, PN 10, PN 16
Max. nominal size
DN 1000
Maximum allowable fluid temperature
110 °C

Material number list – BOAX-B

1 product
Material number
BOAX-B Mat P-da5b DN100 PN10/16 T23g3gKDN 100Semi-lug typeACTAIR-NGEN-GJS-400-15+P40NITRILE-BUTADIENE-RUBBER K6.2 kg42388323


  • The spherical contact between valve disc and liner ensures durable and permanently tight shut-off.
  • Splined or keyed connection between shaft and valve disc: dry shaft, no contact with fluid handled
  • Sealing to atmosphere is ensured even when the actuator has been removed.

Technical Data

Shut off/control flow
Connection type
Design concept Drive
With electric actuator,
With handwheel,
With pneumatic actuator,
Casing material
Nominal pressure
PN 6,
PN 10,
PN 16
Max. nominal size
DN 1000
Min. nominal size
DN 40
Maximum allowable fluid temperature
110 °C
Minimum allowable fluid temperature
-10 °C
Valve body type
Wafer-type body,
Semi-lug type,
Full-lug type, raised faces,
U-shaped body, flat faces

Sectional Drawings