Cylinders & Control
Systems Built to Last

For the World’s most challenging environments

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Double Acting Valve Actuator

A Series

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
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  • PSI 150 psi
  • Bore Size 4″ to 42″ 
  • Low Temp. -54ºC to 90ºC
  • Standard Temp. -20ºC to 104ºC 
  • High Temp. -10ºC to 200ºC 
N

Steel & Stainless-steel

Spring-Return Valve Actuator

AS Series

Available in fail-close or fail-open. Standard offering – no custom design required. 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
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  • PSI 150 psi
  • Valve Size 2” to 10″
  • Low Temp. -54ºC to 90ºC
  • Standard Temp. -20ºC to 104ºC 
  • High Temp. -10ºC to 200ºC 
N

Steel & Stainless-Steel

N

Industry leading 3 week delivery. Try it out.

Control Valve Actuator

AT Series

Compact design with 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″
Get a Quote
  • PSI 150 psi
  • Bore Size 4″ to 42″ 
  • Low Temp. -40ºC to 90ºC
  • Stand Temp. -20ºC to 90ºC 

Options:

  1. Integrated, Intelligent and Pneumatic packages
  2. Single and double-acting
  3. Analog/digital outputs
  4. Fail Open/Close
  5. Foundation Fieldbus, Profibus, Hart
N

Steel & Stainless-Steel

N

US & CAN Patents

Dart Valve Actuator

AT Series

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.

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Durable. Accurate.
Compact. Modular.

N

Thrusts up to 55,000 lbs

N

Steel & Stainless-Steel

N

US & CAN Patents

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250 PSI NFPA

P Series

Dual seal gland. High-strength piston to rod joint.Removable cartridge rod bushing. Adjustable cushions available as an option. Unique cushion design provides maximum cushioning combined with low “breakaway” forces. Ideal for high-speed applications. Made-to-order stroke lengths.

  • Bore size: 1½” to 14″
  • Piston rod diameter: 5/8″ to 3½”
  • Available in medium-duty (Aluminum) and heavy-duty (steel or stainless steel)
  • PSI 250 psi
  • Bore Size 1 ½” to 14″ 
  • Low Temp. -54ºC to 90ºC
  • Standard Temp. -20ºC to 104ºC 
  • High Temp. -10ºC to 200ºC 
N

Steel, Stainless-steel, & Aluminum

PA Medium Duty

PS Heavy Duty Steel

PC Heavy Duty Stainless S.

Mill Type Cylinder

RP Series

Heavy duty construction with steel flanged end caps and heavy wall tubing for 200 psi continuous service. Extra-long heavy duty rod bushing with dual wipers. Dual buffer rod seals. Wide ductile iron piston for long bearing and seal life
4 wrench flats on piston rod + option to accept LDT. Custom mounts to suit any application. Made-to-order stroke lengths

  • Bore size: 2″ to 20″
  • Piston rod diameter: 5/8″ to 5 1/2″
  • Designed for severe applications
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  • PSI 200 psi
  • Bore Size 2″ to 20″ 
  • Low Temp. -54ºC to 60ºC
  • Standard Temp. -50ºC to 105ºC 
  • High Temp. -29ºC to 205ºC 
N

Steel & Stainless-steel

A²A Booster

Dual-Stage High-Output Pneumatic Booster

Consisting of a basic system plus an air to air booster, Cowan’s boosted air systems are designed for applications in which the available air pressure is too low and where space for additional air tanks is limited.

  • Bore diameter: 6″
  • Rod diameter: 5″
  • Stroke: 12″
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  • PSI 250 psi
  • Intensification Ratio 4 to 1 
  • Low Temp. -48ºC to 60ºC
N

Stainless-Steel

Cowan Pneumatic Actuator Control

C-PAC Module

Modular Manifold is suitable for a wide variety of applications and mounting configurations. Contains every foreseeable pathway for fail close, fail open, fail last and fail lock configurations. Eliminate costly and cumbersome piping, fittings & panels.

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Compact. Versatile.Simple. Cost Effective.

N

Designed for all linear and 1/4 turn actuators

N

Fail Close, Open, Last or Lock

N

Cv up to 11.1

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
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  • PSI 115 psi
  • Low Temp. -40ºC to 80ºC
  • Standard Temp. -15ºC to 80ºC 
  • High Temp. -15ºC to 150ºC 
N

Double-Acting or Spring-Return

Diaphragm Actuator

CDA Series

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

  • Effective Diaphragm Area: up to 217in2
  • Direct or Reverse Acting Styles
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  • PSI up to 60 psi
  • Thrust up to 13,000 lbs
  • Stroke up to 4″
N

Fail-Close or Fail-Open

Air-Spring Fail-Safe Systems

FCS Series

Designed to trigger a fail-open, fail-close or fail-last condition in the event of loss of power, air supply, or both; fail-safe systems prevent unwanted system conditions from occurring during emergency situations.

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Safe. Effective. Reliable.

N

Custom-Made

N

Secure

N

Cost-Effective

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.