Transmitter Bellow (WÜB)

The functional principle is based on a hydraulic force transmission. The resulting force or changes in displacement of the bellow system can be used as a constant control or switching function in connection with electronic or electro-mechanical components. It is mainly used as a direct mechanical actuator.
Operating principle allows for an individual adaptation of force, displacement and expansion.


  • Function not requiring any auxiliary energy
  • Liquid charge
  • High transmission forces
  • "Low dependency on temperature by reduced expansion from 0.02 up to 0.08 mm/K"
  • Applicable for temperatures from +5°C up to +55°C
  • Linear characteristic
  • Different transmission ratios applicable
  • Long capillary lengths possible

Copper, bronze (bellow only), brass or stainless steel, plating on demand

Application field:
Building / industrial services, faucets, air conditioning devices, displacement transmission, remote control, force transmission also with different transmission ratios.

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