Spring-Return Hydraulic Actuator
Compact. Simple. Versatile.
Delivering thrust up to 72,000 lbs and SIL-3 Capable. Our Spring-Return Hydraulic Valve Actuator is designed to suit a wide range of valve automation applications; from commodity to severe-service extremes.
Taking Spring-Return Actuation to the Next Level:
Hydraulic Version Now Available
- Bore Size: 1 1/2″ – 14″
- Rod Size: 1″ – 7″
- Configuration: Single-Stage
- Stroke Range: Up to 24″
- Pressure Rating: 3000 psi
Download Our MS Brochure
- Custom dimensional sizes and thrusts available
- Springs are pre-compressed and sealed in a factory-installed canister
- No extended tie-rods required
- Standard offering – no custom design required
- Proven seal technology
Safety comes first, stays first. Backed by Cowan Dynamics’ warranty and service/support guarantee.
Our Series MS Spring-Return Hydraulic Actuator is compatible with any process valve that requires linear motion.
Knife Gate Valve
Dual Speed Manifold
Dual-Speed Cam-Operated hydraulic manifold reduces speed at end of stroke to help prevent water hammer.
Get Maximum Efficiency with these reliable high (red), standard (yellow), and low (blue) operating temperature ranges
Control and Monitoring Solutions
GT3 Gland for Harsh Environments
Cast Iron construction for applications where yellow metals are not allowed
Mounting Kits: ISO, MSS & Customized Patterns Available
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.