Pneumatic/Hydraulic AVAMO ASP/ASH

The Actuator

The AVAMO ASP/ASH actuator series are designed based on our experience we made developing previous actuator series. The system is field proven and highly reliable. The design ensures optimal performance to operate ball, butterfly and plug valves even in the harshest environmental conditions.

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 protection against corrosion.

The AS-series can be used for on/off or modulating applications.

It is available in a double- or single acting version and provides up to 600.000 Nm of torque.


AVAMO AS actuators have a modular design and can be equipped with several options. The Scotch-yoke mechanism can be driven by an air, gas or oil cylinder, and is either available as single- or double acting version. NTF also fits a spring inside of the cylinder for emergency-shut-down-applications if necessary. The cylinder can be fitted on either sides of the actuator to create a fail-close or fail-open configuration.

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
Pneumatic up to 12 bar
Hydraulic up 210 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

Single- or double acting

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

Available options
Manual emergency override

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