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Activair.cz > Products > Vacuum componets – ISO-KF (NW), ISO-K, ISO-F, CF > ISO Flanges & Components > ISO-K Flanges (clamped) > ISO-K Blank Flanges (Aluminium)
ISO-K Blank Flanges (Aluminium)
The ISO flange (also called Large ISO) is used for HV chamber ports and is available in two distinct styles; ISO-K which uses clamp fasteners and ISO-F which uses nut and bolt fasteners. A variety of bolt/clamp options permit joints between mixed ISO-K and -F flanges.
The design principles of ISO and KF seals are identical. Each flange face is counter-bored or grooved to receive a metal centering ring with an elastomeric o-ring around its O.D. As with KF, the ISO centering ring both aligns the flanges and holds the o-ring in place.
ISO flanges are limited (by the o-ring's properties) to applications with temperatures between ~0° C and 120–180° C, and pressure from atmosphere to ~10-8 torr or mbar.
| Flange Size | Nominal Tube O.D. | Weight kg |
| ISO63 | 63.5 | 0.22 |
| ISO80 | 76.2 | 0.22 |
| ISO100 | 101.6 | 0.45 |
| ISO160 | 152.4 | 1.13 |
| ISO200 | 203.2 | 1.81 |
| ISO250 | 254 | 2.72 |
| ISO320 | 323.9 | 6.8 |
| ISO400 | 406.4 | 10.43 |
| ISO500 | 508 | 15.42 |
| ISO630 | 660.4 | 18.14 |
