Vacuum angle valves

Standard equipment features:
- Bypass flange: DN ____ ISO-K, blind-flanged
- Measuring flange in suction nozzle: DN 16 KF, blind-flanged
- Electro-pneumatic drive with 24 V pilot valve (closed when currentless) and contact-free end position sensors
- Edge welded bellows with protective coating designed for 25,000 switching cycles.
- Ventilation slot for bellows internal space serves for pressure equalisation (atmosphere) as well as orifice hole for the helium leak test.
- Material: Carbon steel, bellows, CrNi-steel, viton valve disk seal, all other seals NBR.
Options:
- Additional outlet nozzles
- Other pilot valve voltages
- Safety position currentless when open
- Edge welded bellows designed for 10,000 or 100,000 switching cycles
- Various material combinations possible, e.g. complete CrNi-steel
- Outer surface painted according to customer specification
Usage example: Shut-off device for the suction side of diffusion pumps
Currently the size DN630 is available as standard and low-cost version!