Glass KF components
Glass-Vac® in borosilicate or quartz glass
Vacuum parts with KF flange, made entirely of glass: Hositrad manufactures them itself from borosilicate glass (Duran, Pyrex) or quartz glass.
In plasma etching and CVD processes, stainless steel or aluminium components become contaminated and are very hard to clean. Glass has no gaps or welds where residues can collect, and can be cleaned thoroughly.
Material
Borosilicate or quartz
Connection
KF
Seal
PTFE centring ring
Clamping rings
bakeable ≥ 70 °C
Features
- Half and full nipples, blank flanges, tees, crosses and elbows
- Borosilicate glass for most applications, quartz glass for high temperatures and UV
- no gaps or welds, so they can be cleaned thoroughly
- suitable for any vacuum application and for chemical processes
- joined with one- or two-piece clamping rings made of high-strength plastic
- PTFE centring ring with Viton or Perbunan (NBR) O-ring, chain clamps on request
Technical data
| Designs | Half nipple, full nipple, blank flange, tee, cross, elbow |
|---|---|
| Glass | Borosilicate glass (Duran/Pyrex) or quartz glass |
| Connection | Small flange KF |
| Centring ring | PTFE with Viton or Perbunan (NBR) O-ring |
| Clamping rings | Plastic, one- or two-piece, bakeable to at least 70 °C |
| Application | Plasma etching, CVD, chemical processes, general vacuum technology |
Which version is right?
The flange, material, pressure range and process determine the version. We clarify this with you and Hositrad and also source custom-made parts to drawing.