Cylinders & Control Systems Built to Last

For the World’s most challenging environments

Rotary Valve Actuators

Rotary Valve Actuators: Rack & Pinion Actuators

Rack & Pinion Actuator

CRP Series

Full compliance to worldwide standards and specifications. Innovative universal drive shaft: Customized drive connections can be made in lieu of the standard double square bottom drive shaft connection.

  • All moving parts are contained in Nylon bearings
  • Torques up to 110,000 in-lbs
  • Available in Double-Acting or Spring-Return
  • PSI 115 psi
  • Low Temp. -40ºC to 80ºC
  • Standard Temp. -15ºC to 80ºC 
  • High Temp. -15ºC to 150ºC 
Download Our CRP Brochure


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Rotary Valve Actuators: Pneumatic Scotch Yoke Actuator

Pneumatic Rotary Actuator

CSY Series

Modular design that allows customization to fit specific needs. Bi-directional travel stop allows an adjustable stroke range of 80 degrees to 100 degrees. NAMUR mounting allows standardization of mounting hardware for a wide range of shaft-driven accessories.

 

  • Double-Acting or Spring-Return
  • Torques up to 2,500,000 in-lbs
  • Operating Pressure: 40 – 100 PSIG
  • Low Temp. -40ºC to 80ºC
  • Standard Temp. -20ºC to 80ºC 
  • High Temp. -20ºC to 120ºC 
Download Our CSY Brochure



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Rotary Valve Actuators: Gas/Oil Actuator

Gas/Oil Rotary Actuator

CGO Series

Suitable for Rotary (Quarter-Turn) valves with a linear design also available. Nitrogen Gas Application: High-sulfur natural gas and oil pipelines can use nitrogen gas as a power supply. Optional solar power module.

 

  • Torques up to 4,000,000 in-lbs
  • Air Supply Pressure: 5 – 150 Bar
  • Electronic Line Break Protection
  • Standard Temp. -15ºC to 80ºC 
Download Our CGO Brochure

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Rotary Valve Actuators: Gas/Oil Actuator

Electro-Hydraulic Rotary Valve Actuator

E2H90 Series

Used for industrial fields where highly reliable controlled valves are required. They are used to drive angular-stroke valves, linear-stroke valves, and lifting-lever-type ball valves.

 

  • On/Off Service
  • Operating Voltage: 220 VAC, and any global 3-Phase voltage ratings
  • Fail Last, Fail Close or Fail Open
  • Operating Pressure 3000 psi
  • Thrust up to 4,000, 000 in-lbs
  • Standard Temp. -40ºC to 70ºC 
Download Our E2H90 Brochure



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Why Cowan

Cowan offers a winning combination of skills, resources and customer service excellence.

Deep roots
We bring over 50 years experience in Canadian and international industrial markets – mining, oil & gas, electric power generation, aviation, pulp and paper, coal processing, and much more.

Exceptional teamwork
Great products, like great companies, are only as good as the people behind them.

Integrated resources and capabilities
We bring you the benefits of a specialized custom shop together with full-service manufacturing and assembly – all part of an integrated solution tailored to your needs.

The best systems and solutions in the business
Cowan has built an international reputation on the quality of our products and their performance record in the world’s most challenging environments.