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ISO Blank Flange
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.
- Overview
- Related Products
- ISO Blank Flanges
We design and manufacture fully customizable vacuum chambers to match your exact process requirements, with flexible configurations covering a wide range of industrial and lab scenarios:
Material: 304 stainless steel, 316L stainless steel, or customer-specified materials
Operating temperature range: -190°C to +1500°C (water cooling configuration available for high-temperature working conditions)
Sealing method: Fluororubber "O"-ring for general vacuum use, or metal oxygen-free copper gasket for ultra-high vacuum and extreme temperature environments
Quality is verified at every step before delivery, with mandatory factory inspections on every unit:
🔹Vacuum leak rate test
🔹Customizable surface treatments:
Wire drawing and polishing, sandblasting and electrolytic treatment, acid pickling, electrolytic polishing, mirror polishing, and more to fit your application standards
Whether you need a chamber for PVD coating, semiconductor processing, thermal treatment, food freeze-drying, or lab research, we can tailor the design to your footprint, interface, and performance needs.
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.
| Model No. | Parts No. | Dimensions | |||
| A | B | C | D | ||
| ISO63B | 31031000 | 95.00 | 70.00 | 12.00 | 90.00 |
| ISO80B | 31031001 | 110.00 | 83.00 | 12.00 | 105.00 |
| ISO100B | 31031002 | 130.00 | 102.00 | 12.00 | 125.00 |
| ISO160B | 31031003 | 180.00 | 153.00 | 12.00 | 175.00 |
| ISO200B | 31031004 | 240.00 | 213.00 | 12.00 | 235.00 |
| ISO250B | 31031005 | 290.00 | 261.00 | 12.00 | 285.00 |
| ISO320B | 31031006 | 370.00 | 318.00 | 17.00 | 365.00 |
| ISO400B | 31031007 | 450.00 | 400.00 | 17.00 | 445.00 |
| ISO500B | 31031008 | 550.00 | 501.00 | 17.00 | 545.00 |
