BOAX-S/SF Butterfly valve

Butterfly valve BOAX-S/SF

Centred-disc butterfly valve with ISO 5211 compliant square shaft end for butterfly valves from DN 350, with heat barrier and elastomer liner (EPDM XU or nitrile K), with lever, manual gearbox or electric actuator (BOAXMAT-S and BOAXMAT-SF); semi-lug body (T2) or full-lug body (T4) for downstream dismantling and dead-end service. Valve disc made of stainless steel 1.4308, connections to EN.
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Main Applications

  • Hot-water heating systems
  • Air-conditioning systems
  • Domestic water supply
  • Paint shops

Technical Data

Nominal pressure
PN 6, PN 10, PN 16
Max. nominal size
DN 600
Maximum allowable fluid temperature
130 °C

Material number list – BOAX-S/SF

1 product
Material number
BOAX-S PN6/10/16 DN150 T23G6K6GXU LP330DN 150Semi-lug typeETHYLENE-PROPYLENE-DIENE-RUBBER8.8 kg42087770


  • Thermometer of accuracy class 1 (optional). Please indicate when ordering the valve.
  • Valve certified to
    • DVGW, ÖVGW, SVGW and BELGAQUA for drinking water applications, with EPDM elastomer liner, approved by KTW, ILP Nancy

Technical Data

Shut off/control flow
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 600
Min. nominal size
DN 20
Maximum allowable fluid temperature
130 °C
Minimum allowable fluid temperature
-10 °C
Valve body type
Semi-lug type,
Full-lug type, raised faces

Sectional Drawings