Headquarters
- Activair s.r.o.
Sadová 189/44
746 01 Opava-Predmesti
Czech Republic
| Tel: | +420 595 171 552
|
| Fax: | +420 226 013 984 |
| E-mail: | |
| ID: | 28605837
|
| VAT: | CZ28605837 |
| ID data: | 3bngrkk
|
Branch Brno
- Activair s.r.o.
Marianske nam. 617/1
617 00 Brno
Czech Republic
| Tel: | +420 545 210 455
|
| Fax: | +420 226 013 984 |
| E-mail: |
Branch Praha
- Change of address!
Activair s.r.o.
Novodvorská 803/82
142 00 Praha 4 – Lhotka
Czech Republic
| Tel: | +420 222 362 288
|
| Fax: | +420 226 013 984 |
| E-mail: |
Slovakia
- Activair SK s.r.o.
Cementarenska cesta 16
974 01 Banska Bystrica
Slovakia
| Tel: | +421 948 422 022
|
| Fax: | +420 226 013 984 |
| E-mail: |
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Flex Metal Bellows — Edge Welded with CF Flanges
We fabricate these CF flanged edge-welded bellows for UHV systems from 347 stainless steel hoses and 304L stainless steel knife-edge (ConFlat) flanges. In contrast to hydraulically formed metal hoses, edge-welded bellows are very flexible and tend to spring back to their natural length (typically midway between their extended and compressed lengths) when not under vacuum. The CF flange is the most widely used for high vacuum and UHV applications. Many gauges, instruments, accessories and feedthroughs are available on this flange system.
Edge-Welded Bellows Feature
- Very flexible
- Spring-back to their natural length when not under vacuum
| Flange Size | Fig. | Bellows OD | Bellows ID | Length (extended) | Length (compressed) |
| DN16CF | 1 | 19.1 | 6.35 | 34.8 | 25.4 |
| DN16CF | 2 | 26.2 | 13.97 | 34 | 25.4 |
| DN16CF | 3 | 26.2 | 13.97 | 46.7 | 38.1 |
| DN35CF-DN40CF | 1 | 38.1 | 24.39 | 47 | 35.6 |
| DN35CF-DN40CF | 2 | 48 | 35.31 | 51.3 | 36.8 |
| DN35CF-DN40CF | 3 | 48 | 35.31 | 66.6 | 52.1 |
| DN50CF | 1 | 50.8 | 38.1 | 62.74 | 46.7 |
| DN35CF-DN40CF | 2 | 57.2 | 31.75 | 52.6 | 36.6 |
| DN35CF-DN40CF | 3 | 57.2 | 38.1 | 67.8 | 51.8 |
| DN63CF | 1 | 69.9 | 50.8 | 73.4 | 51.8 |
| DN50CF | 2 | 76.2 | 44.45 | 69.9 | 48.3 |
| DN50CF | 3 | 76.2 | 50.8 | 85.1 | 63.5 |
| DN63CF | 2 | 88.9 | 63.5 | 73.4 | 50.8 |
| DN63CF | 3 | 88.9 | 63.5 | 88.7 | 66 |
| DN100CF | 3 | 126.2 | 101.6 | 100.1 | 77.2 |
| DN160CF | 3 | 190.5 | 152.4 | 116.8 | 82.8 |
| DN200CF | 3 | 241.3 | 215.9 | 104.9 | 84.3 |
