| Specification | A/Outer Diameter | B/Corrugation Diameter | Wall Thickness |
|---|---|---|---|
| Φ19 | 19 | 26 | 0.15 |
| Φ28 | 28 | 37 | 0.15 |
| Φ45 | 45 | 56 | 0.15 |
| Φ54 | 54 | 67 | 0.15 |
| Φ63 | 63 | 85 | 0.2 |
| Φ89 | 89 | 104.0 | 0.2 |
| Φ102 | 102 | 125.0 | 0.2 |
| Φ159 | 159 | 185 | 0.2 |
| Φ219 | 219 | 250 | 0.25 |
| Φ254 | 254 | 300 | 0.25 |
Custom Stainless Steel Vacuum Bellows | 304/316L Laser-Welded
Tubing & Assemblies
Custom metal bellows with KF, CF, ISO and other end connection configurations for vacuum and flexible piping applications.
- Can the two ends of the vacuum bellows be customized separately?
- Yes. The two ends can be configured independently according to the required connection type and dimensions. Different flange or tube-end configurations can be supplied for each end.
- Can KF and CF flanges be combined on the same bellows?
- Yes. Mixed end configurations such as KF × CF can be manufactured according to the required vacuum system configuration.
- Can ISO vacuum flange connections be supplied?
- Yes. ISO-type flange configurations can be supplied together with KF, CF, and other specified connection types, subject to the required dimensions and configuration.
- Can the bellows length be customized?
- Yes. The overall length can be customized according to the installation space and required movement range. Standard lengths from 100 to 2000 mm are available for the listed sizes.
- Can the bellows diameter and wall thickness be customized?
- Yes. Bellows diameter, wall thickness, length, and other applicable dimensions can be specified for custom configurations.
| Material | 304 Stainless Steel, 316L Stainless Steel |
|---|---|
| Size | Φ19, Φ28, Φ45, Φ54, Φ63, Φ89, Φ102, Φ159, Φ219, Φ254 |
| Length (mm) | 100mm, 200 mm, 250 mm, 300 mm, 400 mm, 500 mm, 800 mm, 1000 mm, 1500 mm, 2000 mm, Custom |
| Country of Origin | China |
| Leak Testing | 100% Helium Leak Tested |
| Leak Rate | <5 × 10⁻¹⁰ Pa·m³/s |
| Vacuum Range | 1.5 × 10⁻⁵ Pa to 1 × 10⁻¹⁰ Pa |







