DRG Series Pneumatic Actuator 
DRG Series Scotch Yoke Pneumatic Actuators
DRG Series Scotch Yose Pneumatic Actuators are designed for on/off switching or metering control of 90-degree stroke valves (such as ball valves, butterfly valves, and plug valves). They can be equipped with various accessories to achieve automated industrial process control.
Working Principle:
Compressed air enters the chamber to drive the piston’s linear motion. Through the pin-shaft transmission mechanism and Scotch yoke slotted linkage, the piston’s linear motion is converted into the yoke’s rotational motion, which drives the output shaft to rotate, thereby enabling precise valve actuation.
There are two types of DRG Scotch Yoke Pneumatic Actuators: symmetrical and inclined, whichcorrespond totwo different torque output characteristics. The symmetrical yoke mechanism
Our pneumatic actuators are widely used in petroleum and natural gas, chemical industry, oilrefining, pulpand paper making, water treatment, power plants and other industries.
Working Media and Pressure
The working medium is usually dry compressed air inert
gas or anti-wear hydraulic oil.
When the working medium is gas
Working pressure: 3-10bar
Maximum service pressure: 10bar
Recommended pressure: 4-6bar
Please consult our companv when the medium is liquid.
Working Temperature andSealing Performance
Operating temperatures:Standard -20°C to +80C
High Temperature -20°C to +150°C
Low Temperature -40C to +80C
The cylinder inner wall and piston rod surfacehoning and hard chrome plating, combined withthe dynamic sealing design of O-ring, greatly im-prove the sealing performance of the product.
Stroke and Adjusting Range
Standard stroke 0-90 , two independent adjust-ment bolts at the extreme positions can facilitateadjusf from -6° to +6 Non-standard stroke is available.such as 0-60%,etc.
