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GEMÜ 4222

Combi switchbox with integrated 3/2-way pilot valve

  • Description
  • Features
  • Technical specifications
  • Accessories

The GEMÜ 4222 combi switchbox with integrated 3/2-way pilot valve for pneumatically operated linear actuators uses a microprocessor controlled intelligent position sensor and an analogue travel sensor system. The optical position feedback is via LEDs. Electrical activation and position feedback is provided via 24 V DC signals or via fieldbus (AS-Interface, DeviceNet).

  • 24 V version or fieldbus connection to AS-Interface or DeviceNet
  • Easy setting of valve end positions by automatic or manual programming mode
  • Reduced cabling requirements
  • Reduced planning
  • Fieldbus
  • Max. operating pressure: 7 bar
  • Pilot valve

Suitable products

Innovative methods for freeze-drying pharmaceutical products

Product applications

Innovative methods for freeze-drying pharmaceutical products

Many pharmaceutical manufacturing procedures are based on bio-technological processes. Often, their molecular structure is extremely complex and their liquid form is unstable, which is why many bio-pharmaceuticals cannot be stored directly. Freeze-drying is the gentlest procedure for conserving the active ingredient solution. Because of critical operating conditions the butterfly valve GEMÜ 490 is particularly important.