Shafer Rotary Vane Valve Actuators are used in many applications where there are is no pneumatic or hydraulic supply lines available. Automation of valves on natural gas pipelines are typically powered by natural gas using gas over oil technology. They are applied to many different pipeline applications including:

  • Emergency shutdown
  • Mainline isolation
  • Linebreak protection
  • Station blowdown
  • Remote valve control
  • Hi/low pressure shutoff
  • River crossings

The rotary vane’s compact size and concentric weight distribution make it ideal for high vibration applications.

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Quarter Turn Actuation will help you evaluate, design and engineer the best solution for installation at your pipeline as quickly as possible, even if you have other brands of valves on-site.

Rotary Vane Valve Actuator Features

  • Only one moving part allows for a 50 year design life with minimal maintenance.
  • Does not produce any side loading forces on the valve stem or actuator bearings.
  • Balanced and constant torque is applied directly to the valve stem, without any internal power loss, throughout the complete stroke.


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