ISO-KF · SEALING COMPONENTS
ISO-KF SS303 Reducing Centering Ring
ZEROVAC ISO-KF reducing centering rings align and seal ISO-KF flanges with different nominal bores. The AISI 303 body and selectable elastomer O-ring create a compact transition component.
- Connection Standard
- ISO-KF
- Transition Groups
- DN 10-16 / 20-25 / 32-40
- Ring Material
- AISI 303 / EN 1.4305
- O-ring Options
- CR, FPM, NBR, EPDM, VMQ
- Leak Rate
- < 1 × 10⁻⁹ mbar·L/s
TECHNICAL DRAWING · DIMENSIONS · ORDER CODES
Transition dimensions and elastomer ordering codes
A, B, C, D and E are identified in the cross-section drawing. All dimensions are in millimetres.
Scroll horizontally to review every published dimension and order code.
| ISO-KF | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | CR | FPM | NBR | EPDM | VMQ |
|---|---|---|---|---|---|---|---|---|---|---|
| DN 10-16 | 17 | 10 | 12 | 8 | 3.9 | 211721 | 211078 | 211724 | 211727 | 211730 |
| DN 20-25 | 26 | 20 | 22 | 8 | 3.9 | 211722 | 211079 | 211725 | 211728 | 211731 |
| DN 32-40 | 41 | 32 | 34 | 8 | 3.9 | 211723 | 211080 | 211726 | 211729 | 211732 |
CR: NeopreneFPM: VitonVMQ: Silicone
INSTALLATION NOTE
Use the ring for the correct transition group with suitable ISO-KF flanges and a clamp; keep the O-ring and all sealing surfaces clean, particle-free and undamaged.