Soft-seated butterfly valve with authorized end fitting suitability
The KSB butterfly valve BOAX-SF in lug design is a centric, soft-seated industrial valve for applications in water, energy and HVAC systems. The robust ductile iron body, the high-quality elastomer bellows and the authorized end valve suitability make the BOAX-SF a durable, versatile and reliable sealing solution. Thanks to the ISO 5211 flange, it is ideal for automated HVAC, water and industrial circuits.
In combination with AirTorque actuators and accessories for maximum efficiency and reliability.
| Feature | Specification |
| Type | BOAX-SF (Lug-Type) |
| Nominal size (DN) | DN 20 – DN 600 |
| Nominal pressure (PN) | PN 10 / PN 16 |
| Housing material | EN-GJS-400-15 (ductile iron) |
| Disc material | Stainless steel 1.4301 / 1.4308 |
| Seat/gasket | EPDM-XU, Nitrile-K, Epichlorohydrin EG |
| Temperature range | -10 °C to +130 °C (depending on gasket) |
| Standards | EN 593, EN 12266-1, ISO 5752-20, EN 558-1-20 |
| Face-to-face length | ISO 5752 Series 20 |
| Flanged connection | EN 1092-1 |
| Drive flange | ISO 5211 |
| Leakage rate | A according to EN 12266-1 |
| Coating | Epoxy resin or polyurethane, orange RAL 2002 |
| Special features | Maintenance-free, automation possible |
Our insulations are more than just accessories – they perfectly complement fittings and systems and increase efficiency, safety and adaptability.
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