Description
Leybold 297 22 Electropneumatic Bellows-Sealed Right-Angle High Vacuum Valve
The Leybold 297 22 is a compact, bellows-sealed electropneumatic vacuum valve in a right-angle configuration, designed for reliable operation in medium and high-vacuum systems. The drive shaft is sealed with a metal bellows, ensuring very low leak rates even during repeated actuation. Made in West Germany by Leybold AG, this valve dates from the early-to-mid 1990s era of precision German vacuum engineering.
Specifications & What's Included
- Manufacturer: Leybold AG
- Model: 297 22
- Date Code: A9412 (Made in W. Germany)
- Valve Type: Right-angle, bellows-sealed
- Actuator: Electropneumatic (easily removable)
- Seal: Bellows-sealed drive shaft for very low leak rates during actuation
- Vacuum Range: Medium to high vacuum
- Position Indication: Visual mechanical indicator built in; optional electrical position indicator (Cat. No. 287 80) can be retrofitted
- Inner bellows assembly: Removable for cleaning or replacement
- Includes: Valve unit, bagged accessory hardware, service manual, parts manual
Applications
Bellows-sealed electropneumatic vacuum valves like the Leybold 297 22 are standard components in high-vacuum and ultra-high-vacuum systems across semiconductor fabrication, surface science research, thin-film deposition (PVD/CVD), electron microscopy, and industrial vacuum processing. The right-angle configuration allows the valve to act as both a flow-control element and a directional fitting, with conductance comparable to an equivalent pipe bend — making it efficient in tight vacuum plumbing layouts. Electropneumatic actuation allows automated or remote control of the valve state, which is common in process chambers, load-lock systems, and multi-stage vacuum manifolds. Leybold AG (now Leybold GmbH) has been a leading manufacturer of vacuum technology since the 19th century, and their bellows-sealed valve designs have been widely used in European and worldwide vacuum systems since the 1970s and 1980s.
This Leybold 297 22 Electropneumatic Bellows-Sealed Right-Angle High Vacuum Valve is new and in the box. The valve body shows no signs of use or wear, and all components appear complete and undisturbed. Accessory hardware is bagged separately, as seen in the photos. Service and parts manuals are included. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Leybold |
Model: |
297 22 |
MPN: |
297 22 |
Type: |
Electropneumatic Bellows-Sealed Right-Angle Vacuum Valve |
SKU: |
11781 |
Valve Configuration: |
Right-Angle |
Actuator Type: |
Electropneumatic |
Seal Type: |
Bellows-Sealed Drive Shaft |
Vacuum Range: |
Medium to High Vacuum |
Position Indication: |
Visual (mechanical); optional electrical Cat. No. 287 80 |
Country/Region of Manufacture: |
Germany (West Germany) |
What's Included: |
Valve unit, accessory hardware, service manual, parts manual |
Compatible Accessory: |
Electrical Position Indicator Cat. No. 287 80 |
Application: |
High-vacuum systems, vacuum chambers, semiconductor, research |
Condition Notes: |
This Leybold 297 22 electropneumatic bellows-sealed high vacuum valve is new and in the box, complete with accessory hardware and service and parts manuals. No signs of use or wear. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
