
ISO-KF · FLANGES & FITTINGS
ISO-KF AISI 304 Stainless Steel Blank Flange
ZEROVAC ISO-KF blank flanges close unused vacuum-system ports. The one-piece AISI 304 / EN 1.4301 construction combines with a matching centering ring, O-ring and clamp for quick, removable and repeatable installation.
- Connection Standard
- ISO-KF
- Size Range
- DN 10 - DN 50
- Material
- AISI 304 / EN 1.4301
- Product Type
- One-piece blank flange
- Leak Rate
- < 1 × 10⁻⁹ mbar·L/s
TECHNICAL DRAWING · DIMENSIONS · ORDER CODES
Blank flange dimensions and order codes
A is the total axial thickness from the sealing face to the rear face. All dimensions are in millimetres.

Scroll horizontally to review every published dimension and order code.
| ISO-KF | A (mm) | Material | Order Code |
|---|---|---|---|
| DN 10 | 5 | AISI 304 / EN 1.4301 | 211181 |
| DN 16 | 5 | AISI 304 / EN 1.4301 | 211182 |
| DN 25 | 5 | AISI 304 / EN 1.4301 | 211183 |
| DN 40 | 5 | AISI 304 / EN 1.4301 | 211184 |
| DN 50 | 6 | AISI 304 / EN 1.4301 | 211185 |
Connection standard: ISO-KFMaterial: AISI 304 / EN 1.4301Leak rate: < 1 × 10⁻⁹ mbar·L/s
INSTALLATION NOTE
Use the blank flange with a matching ISO-KF flange, centering ring/O-ring and clamp. Keep all sealing surfaces clean and undamaged.
