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Butterfly valveShow all applications
ISORIA 20/25
Centred-disc butterfly valve, sealed by elastomer liner, with lever or manual gearbox, pneumatic, electric or hydraulic actuator. Semi-lug body (T2), full-lug body (T4) or U-section body with flat faces (T5). Body types T2, T4 and T5 are suitable for downstream dismantling and dead-end service with counterflange. Connections to EN, ASME, JIS.
See all documents and downloadsMain Applications
- Cooling circuits
- Seawater desalination/reverse osmosis
- Flue gas desulphurisation
- Pulp and paper industry
Technical Data
- Nominal pressurePN 20, PN 25
- Max. nominal sizeDN 1000
- Max. allowed fluid temperature200 °C
Benefits
- 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 typeInstallation between flanges, Flange
- Design concept DriveWith electric actuator, With handwheel, Hydraulic, Lever, With pneumatic actuator, Without
- Casing materialEN-GJS-400-15/A536 GRADE 60-40-18
- Nominal pressurePN 20, PN 25
- Max. nominal sizeDN 1000
- Min. nominal sizeDN 32
- Max. allowed fluid temperature200 °C
- Min. allowed fluid temperature-10 °C
- Valve body typeSemi-lug type, Full-lug type, flat faces, Full-lug type, raised faces, U-shaped body, flat faces
Sectional Drawings
Documents
- Brazilian Portuguese
- Bulgarian
- Croatian
- Czech
- Danish
- Dutch
- English
- Estonian
- Finnish
- French
- German
- Greek
- Hungarian
- Italian
- Latvian
- Lithuanian
- Polish
- Romanian
- Slovak
- Slovenian
- Spanish
- Swedish
| Title | Format | Size | Last change |
|---|
| Title | Format | Size | Last change | |
|---|---|---|---|---|
| Declaration of conformity - ATEX (8401.8501_EN) | 0.19 | 4/20/2021 | ||
| Declaration of conformity - M Directive (8401.8505_EN) | 0.19 | 4/19/2021 | ||
| Declaration of conformity - AD 2000 (8401.8507_EN) | 0.18 | 4/19/2021 | ||
| Declaration of conformity - PED (8401.8502_EN) | 0.41 | 5/7/2021 |
| Title | Format | Size | Last change | |
|---|---|---|---|---|
| ATEX (8610.81_EN) | 0.4 | 4/19/2021 | ||
| Operating instructions - ISORIA/MAMMOUTH (8449.8_EN) | 1.59 | 4/19/2021 |
| Title | Format | Size | Last change | |
|---|---|---|---|---|
| Type series booklet Coating systems (8425.20_EN) | 2.28 | 7/3/2021 | ||
| Actuator selection ISORIA 20/25 (8447.15_EN) | 9 | 4/27/2021 | ||
| Type series booklet ISORIA 20/25 (8447.5_EN) | 7.88 | 5/5/2021 |
| Title | Format | Size | Last change | |
|---|---|---|---|---|
| ISORIA 20/25 (8447.521_EN) | 0.01 | 4/19/2021 |