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Pneumatic actuator-Scotch yoke

RC200 series

The RC200 model is a Rotork pneumatic actuator, giving high torque in end position. These actuators are light, very compact and have a robust design especially with manual override solution. Low stroke volume to reduce the amount of compressed air and low maintenance are other advantages of this type of actuator.

RC200 series features Scotch yoke principle in which the rotary motion is achieved by linear motion of a slider/piston. The reciprocating part is coupled to the sliding yoke with a slot that engages a pin on a disk-shaped crank. The air pressure in the piston insert a force to rotate the crank resulting in the actuator rotary motion.

They are available in both spring return and double acting configurations and suitable for both On/Off and regulating.




Temperature range:

Operating pressure:

Standard connections:

Standard approval:

Extruded anodized Aluminum, hard anodise/ low friction polymer, Epoxy coating, other

treatment on request,

Stainless steel screws and driveshaft (standard for RC210-260)

-20°C to +80°C for standard operation (also available in other ranges)

2-10 bar

VDI/VDE 3845, Namur, ISO 5211, DIN 3337

SIL 2 and SIL 3 as the single device according to IEC 61508, CE marked in accordance with PED and ATEX

Ramén offers complete control valve assemblies for valve sizes of DN 25-300 applying RC200 series for a multitude of applications.