Pneumatic Valve Actuators

Actuation Solutions and Systems for the
World’s Most Challenging Environments

Our Linear Pneumatic Valve Actuator Lineup

Pneumatic Double Acting Valve Actuator
(A Series)

Pneumatic Spring-Return
Valve Actuator
(AS Series)

Pneumatic Control Valve
Actuator
(AT Series)

Pneumatic Dart Valve
Actuator

(AT Series)

Pneumatic Diaphram Type Actuator
(CDA Series)

Our Rotary Pneumatic Valve Actuator Lineup

Pneumatic
Rotary
Actuator

(CSY Series)

Gas/Oil
Rotary Actuator
(CGO Series)

Rack & Pinion Actuator
(CRP Series)

Linear Valve Actuators: Double-Acting Valve Actuator

Pneumatic Double-Acting Valve Actuator

A Series

The Pneumatic Double-Acting Valve Actuator comes in a dual or triple seal gland with a high-strength carbon fibre barrel. Bronze/Teflon piston wear band and a removable cartridge bushing. Made-to-order stroke lengths. Valve mounting kits available

  • Bore size: 4″ to 42″
  • Piston rod diameter: 1″ to 5 1/2″
  • Available in single-acting and double-acting
  • PSI 150 psi
  • Bore Size 4″ to 42″ 
  • Low Temp. -54ºC to 90ºC
  • Standard Temp. -20ºC to 104ºC 
  • High Temp. -10ºC to 200ºC 

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Configure & download CAD model

Linear Valve Actuators: 150 PSI Spring-Return Pneumatic Valve Actuator

Pneumatic Spring-Return Valve Actuator

AS Series

Available in fail-close or fail-open. Standard offering – no custom design required. The Pneumatic Spring-Return Valve Actuator is available in a full range of dimensional sizes and thrusts. Springs are pre-compressed and sealed in a factory-installed canister. Canisters are easily and safely removed for in-field servicing.

  • Valve Size: 2” to 10”
  • Thrust: up to 72,000 lbs
  • Designed for the most demanding applications where position control is essential
  • PSI 150 psi
  • Valve Size 2” to 10″
  • Low Temp. -54ºC to 90ºC
  • Standard Temp. -20ºC to 104ºC 
  • High Temp. -10ºC to 200ºC 

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Configure & download CAD model

Linear Valve Actuators: 150 PSI Pneumatic Modulating Valve Actuator with Integral Position Transducer

Pneumatic Control Valve Actuator

AT Series

The Pneumatic Control Valve Actuator features a compact design with a self-contained transducer. No exposed transducer or clumsy linkage arms. Modular transducer for easy installation. Switchable analog or digital output. Dual or triple seal gland. High-strength carbon fibre barrel. Made-to-order stroke lengths. Valve mounting kits available

  • Bore size: 4″ to 42″
  • Piston rod diameter: 1″ to 5 1/2″
  • Stroke: Up to 144″
  • Single and double-acting
  • Fail-Open, Fail-Close
  • PSI 150 psi
  • Bore Size 4″ to 42″ 
  • Low Temp. -40ºC to 90ºC
  • Stand Temp. -20ºC to 90ºC 

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Configure & download CAD model

Linear Valve Actuators: Dart Valve Actuator - AT Series

Pneumatic Dart Valve Actuator

AT Series

The Pneumatic Dart Valve Actuator features a modular transducer for easy installation. Switchable analog or digital output. Dual or triple seal gland. High-strength carbon fibre barrel. Made-to-order stroke lengths. Vibration resistance up to 10Gs at 2000Hz.

  • Thrusts up to 55,000 lbs
  • US & CAN Patents

Durable. Accurate.
Compact. Modular.

Linear Valve Actuators: Diaphragm Type Actuators

Pneumatic Diaphragm Actuator

CDA Series

Excellent repeatability: tested to over 400,000 cycles without loss of precision! The Pneumatic Diaphtram Actuator Outputs repeatable thrust force. Nested spring design to maintain compactness.

  • Effective Diaphragm Area: up to 217in2
  • Direct or Reverse Acting Styles
  • Fail-Close or Fail-Open
  • PSI up to 60 psi
  • Thrust up to 13,000 lbs
  • Stroke up to 4″
Rotary Valve Actuators: Pneumatic Scotch Yoke Actuator

Pneumatic Rotary Actuator

CSY Series

The CSY Pnuematic Rotary Actuator 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 
Rotary Valve Actuators: Gas/Oil Actuator

Pneumatic Gas/Oil Rotary Actuator

CGO Series

The CGO Pneumatic Gas/Oil Rotary Actuator is 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 
Rotary Valve Actuators: Rack & Pinion Actuators

Pneumatic Rack & Pinion Actuator

CRP Series

Full compliance to worldwide standards and specifications. The CRP Pneumatic Rack & Pinion Actuator comes with an 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 

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.