Actuator

SA / DA Actuator is a pneumatic rotary actuator designed for precise and reliable valve automation in industrial process systems. It is available in single-acting (SA) and double-acting (DA) configurations to suit different control and safety requirements.The double-acting (DA) actuator uses air pressure for both opening and closing of the valve, providing fast and consistent operation, while the single-acting (SA) actuator incorporates a spring-return mechanism that moves the valve to a fail-safe position (fail open or fail close) upon loss of air supply.The actuator features a robust aluminum alloy body, corrosion-resistant internal components, and a rack-and-pinion mechanism that ensures smooth torque output and long service life. It is compatible with quarter-turn valves such as ball valves, butterfly valves, and plug valves, and supports accessories including solenoid valves, limit switches, positioners, and manual overrides.


Design : Scotch & Yoke
Benefit : High breakaway torque matching valve opening torque
Operation : Double acting, spring return
Output : 8 – 5,760 Nm
Mounting flange : DIN / ISO 5211 / 3337
Air pressure : 5.6 – 8.4 bar
Connection : 1/8”, NAMUR interface
Casing : Anodized aluminum, SS 316, epoxy & nickel coated

Typical Applications
Automated ball and butterfly valves
Process control and on/off service
Oil & gas, chemical, power plant, and water treatment systems

Key Features
Available in single-acting (spring return) and double-acting versions
Reliable pneumatic operation with high torque output
Fail-safe operation for safety-critical applications (SA type)
Compact, durable design suitable for harsh industrial environments
Easy integration with valve automation accessories