Soft-sealing butterfly valves with elastomer bellows for water, chemicals & energy.
The KSB butterfly valves ISORIA 10 and ISORIA 16 are centric, soft-seated industrial valves with an elastomer liner for demanding applications in water, chemical and energy technology. Thanks to their compact design, high tightness, flexible body variants and the option of automated operation they are ideal for drinking water, cooling circuits, process plants, energy distribution and industrial supply systems.
In combination with AirTorque actuators and accessories – matched to the ISORIA 10 / 16 butterfly valve.
The ISORIA covers DN 40 to DN 1000 at 10 bar – the body design T1 to T5 follows the installation situation. For higher pressures up to 25 bar or a metal seat, the DANAÏS 150 should be specified.
| Feature | Specification |
| Type | ISORIA 10 / ISORIA 16 |
| Nominal size (DN) | DN 40 – DN 250 (larger on request) |
| Nominal pressure (PN) | ISORIA 10: PN 6 / 10; ISORIA 16: PN 6 / 10 / 16 (PN 20 on request) |
| Housing material | Ductile iron EN-GJS-400-15 (EN-JS1030) |
| Disc material | Stainless steel 1.4408 (cast iron on request) |
| Seat/gasket | EPDM (others on request) |
| Temperature range | -10 °C to +130 °C |
| Standards | EN 593, EN 558, ISO 5211 |
| Coatings | Polyurethane, blue RAL 5002 |
Our insulations are more than just accessories – they perfectly complement valves and systems and increase efficiency, safety and adaptability.
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