ML Series

Double-Acting Hydraulic Actuator

Compact. Simple. Versatile. Delivering thrust up to 1,500,000 lbs and SIL-3 Capable. Our double-acting hydraulic valve actuators are designed to suit a wide range of applications; from commodity to severe-service extremes.

hydraulic actuator double acting

Unleash your plant’s full potential. Upgrade to the ML Series.

Cowan ML Series Double-Acting Hydraulic Valve Actuators are designed to suit a wide range of applications; from commodity to severe-service extremes.

Features

  • Thrust up to 1,500,000 lbs
  • SIL 3 Capable (IEC 61508)
  • GT3 Triple Seal Gland for Severe Service Applications

Specifications

  • Bore Size: 1 1/2″ to 24″
  • Configuration: Single-Stage and Tandem
  • Stroke Range: Up to 144″
  • Pressure Rating: 3000 psi
  • Rod Size: 1″ – 10″
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Valve Compatibility

Our Series ML Double-Acting Hydraulic Actuator is compatible with any process valve that requires linear motion.

Learn More About: Valve Types

knife gate valve actuator

Knife Gate Valve

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gate valve actuator

Gate Valve

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Globe Valve

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Pinch Valve

Design and Materials

Double-Acting Hydraulic Valve Actuator - ML Series Cutaway
Gland Seal Options for ML Series

Gland Seal Configuration

  • Triple Seal Gland Standard
  • Gland Bushing: Cartridge type, no special tools required for removal
  • Primary Seal: Heavy Duty Polyurethane “U”-cup for excellent seal ability and long service life to the hydraulic actuator
  • Buffer Seal: PTFE Low friction and long service life. Protects primary seal from pressure spikes.
  • Encased Rod Wiper: Rugged wiper deflects contamination away from the rod seals for long service.

In Market Example

Canadian Oil Sands Tailings Application.
8″ Bore ML Series

In Market application for the Double-Acting Hydraulic Valve Actuator - ML Series


Control and Monitoring Solutions

 

Available in 316 Stainless Construction

316 Stainless Steel construction
For corrosive applications. Includes attachments such as Rod Clevis and Eye Brackets.

HPU & Gas/Oil Systems

HPU & Gas/Oil Systems
HPU and Gas/Oil Systems available. Standard and custom units engineered to customer specifications and applications.

Manual Hand Pump

Manual Hand Pump for the Double-Acting Hydraulic Valve Actuator

Hydraulic manual override with indicator.

Mounting Kits: ISO, MSS & Customized Patterns Available

Mounting Kits
Cowan valve mounting kits can be designed for any linear hydraulic actuator for valve control. Mounting kits available in steel and stainless steel construction.

Anti-Rotation Torque Arm:

Maintains constant alignment between valve stem and cylinder piston-rod. Compatible with rotary type switch boxes and beacons.

Field-Adjustable Travel Stops:
To limit stroke for position-seated or limited-travel applications. Ensures valve reaches positive sealing every time without damage to valve internals.

GT3 Gland for Harsh Environments

GT3 Gland
Triple-seal gland with dual wipers. Rugged metallic scrapper and urethane double-acting wiper deflect contamination away from the rod seal for long service life for your hydraulic actuator.

Options:

Low Temp

Cast Iron construction for applications where yellow metals are not allowed

Limit Switches

Limit Switches

Mechanical Limit Switch SPDT, for Open & Close Indication. Inductive switches also available. Solid State, Reed and inductive type also available. Specify brand and part number for your hydraulic actuator.

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