The Series K Scotch yoke actuators are specifically designed for use with quarter-turn valves. The large output torque range offered by Radius ensures that our actuators match the operational characteristics of plug, ball or butterfly valves; or any device requiring precise and reliable 90° rotary motion.
Carbon steel scotch yoke mechanism available in symmetric form.
Modular construction allows the air cylinder and the spring cartridge to be assembled to either side of the central body.
The air cylinders are nickel plated as standard to improve corrosion resistance and reliability.
An internal chrome guide bar insures proper support of the piston rod.
Provided with bronze bearings and sliding blocks for smooth operation and extended service life.
For the spring return version the spring is supplied in a welded spring cartridge to ensure safety when disassembling. The spring cartridge can only be removed when the spring is released.
Totally enclosed weatherproof central body.
Air cylinders and spring cartridge fitted with mechanical end stops to ensure a regulation of +/- 5°.