Gas over oil AVAMO ASGO

The Actuator

The AVAMO ASGO actuator range is designed to drive a hydraulic actuator by natural gas. By pushing down oil in a vertical vessel by gas, the two mediums stay separated and the pressure gets transferred. The used actuator is our field proven AS range with a scotch yoke mechanism.

The actuator is designed for longevity, ensured by bronze slide blocks and nickel or Ionit Ox plated cylinders. Chromium plated rods and custom paint jobs provide an excellent corrosion protection.

The ASGO Range can be used for on/off or modulating applications. It is available in a double acting version and delivers torque up to 600.000 Nm


Customer Benefits

  • State of the art actuators for critical infrastructure
  • Best quality made in Germany
  • Exceptional reliability because of high-end processing
  • Constant performance even in the harshest environments
  • Our adaptable designs adjust to your specific applications


Symmetric or canted Scotch Yoke lever

Control pressure
Natural Gas up to 200 bar

up to 600.000 Nm

Temperature range
-30° - +110°C (standard)
-40° - +60°C (low temp)
-60° - +60°C (extreme temp)
0° - +160°C (high temp)

Centre Body
Maintenance free, corrosion protected, welded construction

Cylinder with nickel, chromium or Ionit Ox plated running surfaces against corrosion providing a long lifetime for gaskets

Double- or single acting

End Stops
Adjustable leak free end stops +/- 5°

Available Options

  • Manual emergency override
  • Sour gas version etc.

Stroking times
< 0,3 seconds


  • ATEX 2014/34/EU
  • PED 2014/68/EU
  • Applicable up to SIL 3 as per 61508
  • Machine directives 2006/42/EG
  • TR-TS approval