Fork Type Pneumatic Actuator
Resistant
Sealing
Operation
Long Life
Alis Valves is an Fork Type Pneumatic Actuator Manufacturer Supplier in India Offering high-torque pneumatic actuator designed to operate quarter-turn valves such as ball, butterfly and plug valves. Its Scotch Yoke mechanism converts pneumatic piston movement into rotary torque, making it suitable for high breakaway-torque and critical valve automation applications.
Specifications
Rotation
90° ±5° Adjustable
Operating Pressure
2.5 to 8 bar
Temperature Range
-20°C to +80°C Standard
Low Temperature Version
Down to -45°C / -60°C
Enclosure Protection
IP66 / IP67
Torque Range
Approx. 300 to 100,000 Nm
Supply Medium
Dry Compressed Air / Inert Gas
High Temperature Version
Up to +125°C / +150°C
Accessory Interface
NAMUR
Control
On-Off / Modulating
Product Images
Frequently Ask Questions
It is a Scotch Yoke pneumatic actuator that converts linear piston movement into rotary torque for operating quarter-turn valves.
Actuator torque must be selected based on the valve's required breakaway, running and seating torque at the actual differential pressure and operating conditions.
Depending on the model, Scotch Yoke actuators commonly operate around 2.5–8 bar, while some designs support pressures up to 12 bar.
In a spring-return fail-open configuration, loss of pneumatic supply causes the actuator to move the valve toward the open position.
Yes, with appropriate high-temperature seals, lubricants and actuator construction. High-temperature versions are available depending on the manufacturer.
The actuator uses a fork-shaped Scotch Yoke mechanism to convert the linear movement of the piston into rotary movement of the output shaft.
Higher differential pressure can increase the torque required to move the valve closure element, so it must be considered during actuator sizing.
In a spring-return fail-close configuration, loss of pneumatic supply causes the actuator to move the valve toward the closed position.
Yes. Spring-return Scotch Yoke actuators are commonly used for Emergency Shutdown (ESD) and safety-critical valve applications.
ALIS Valves offers pneumatic actuator solutions in India for industrial valve automation. For a specific Fork Type / Scotch Yoke model, the exact torque, pressure and temperature range should be confirmed from the approved ALIS datasheet before publishing.
