Reliable Under All Conditions

The 06.1 Large Transfer Valve / Insert with TWINVAT has been developed to meet the special requirements of display production systems. Developed for high cycle production systems, the 06.1 combines virtually particle-free operation at an outstanding fast motion time for large transfer valves (≤ 2 s with 150 mm opening height). The 06.1 is designed for a high uptime and reliable operation over a lifetime beyond one million cycles.

The TWINVAT technology used for the 06.1 is based on a modular platform concept and fully optimized for the key display applications:

  • PECVD / ETCH: For these applications a special service feature is available on the 06.1 version valves allowing to maintain the gate of the process chamber, while the transfer chamber remains in production mode under vacuum. This feature is especially important, because in PECVD and ETCH processes, frequent cleaning and exchange of the gate seal is required. The soft moving, double acting TWINVAT mechanism provides a uniform seal pressure along the complete seal surface, reducing the required seal load and minimizing seal wear. This reduces FFKM seal cost over the lifetime of the valve.
  • OLED/PVD & Load-Lock: With a modified version of the 06.1 (the 06.3 version), with larger pressure elements, full differential pressure can be applied. This version is available in “ultra clean” configuration for OLED and with a high-speed option for PVD and load-lock applications.

The 06.1 series is available as standard transfer valve with housing or as insert version to be mounted directly into the process chamber.

Already installed in hundreds of display production systems around the world under various process conditions, the 06.1 series has proven its outstanding performance in all aspects.

Optically closed
Service position 3

The 06.1 Large Transfer Valve / Insert with TWINVAT is tailored to the exact customer specification like all VAT transfer valve solutions. These customizations can include an additional process control unit, special surface treatments like hard anodized or nickel-plated aluminum, other sealing materials, vacuum gauges to detect the pressure in the valve body, bellows protected shaft feedthrough, RF & DC grounding options for valve and gate, lateral mounting position of the actuators and more.

Key features of the 06.1 Large Transfer Valve / Insert with TWINVAT


  • Shock reduced gate movement
  • Special valve service function for gate seal changes
  • Uniform pressure on the gate seal


  • Low particle
  • Low down time for maintenance
  • Fast cycle times
  • High uptime
Technical data
Sizes   100 x 1000 mm to 300 x 3800 mm (3.94" x 39.37" to 11.81" x 149.60")
Actuator Pneumatic Double acting with position indicator
Body Material   Aluminum
Feedthrough   Shaft Feedthrough
Leak Rate Valve Body < 1 × 10-7 mbar ls-1
  Valve Seat < 1 × 10-7 mbar ls-1
Differential Pressure On the Gate Valve: in closing direction only ≤ 1 bar
    Insert: in opening direction ≤ 30 mbar
  At Opening ≤ 5 mbar
Cycles until first Service   1 Million
Closing or opening time   < 2.5 s (with 150 mm opening height)
Temperature Valve Body, Gate ≤ 120 °C
  Actuator ≤ 60 °C
  Solenoid Valve ≤ 50 °C
Material Valve Body, Gate EN AW-6082 (3.2315) or EN AW-5083 (3.3547)
  Actuator Shafts AISI 316 (1.4401)
  Bellows on pressure element AISI 633 (AM 350)
Seal Gate, flanges, feedthrough, actuator FKM (Viton®)
Pump / Vent Port   ISO-KF 40
Mounting Position   Actuator Up or Down
Position Indicator Voltage 24 V DC PNP (NPN optional)


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