Advantages of a scoot-type pneumatic actuator
Advantages: Scotch fork Pneumatic Actuator1. Introduction The scooter type Pneumatic Actuator belongs to the piston actuator; It is suitable for the on-off or metering control of 90° angle valves (such as ball valves, butterfly valves, plug valves), especially for the control of large-diameter and large-torque valves. Scotch fork pneumatic actuator usually refers to the pneumatic actuator with the structure of "single cylinder double piston-variable torque scoot fork pneumatic actuator". Second, the working principle of the fork pneumatic actuator: compressed air enters the cylinder, the piston of the fork pneumatic actuator moves in a straight line, the piston converts the linear motion of the piston into the rotary motion of the fork through the U-groove design of the piston pin and the fork, and the rotation of the fork drives the output shaft to rotate, so as to realize the control of the valve. 3. Classification of fork pneumatic actuator: the switch action of the actuator is driven by the air source to complete the double-acting fork pneumatic actuator; It is a single-acting scootch pneumatic actuator that is driven by air only to complete the opening action and close the action as a spring return. According to the different structures, it can be divided into single-cylinder piston type and double-cylinder piston type. According to the different materials of the main body, it can be divided into aluminum alloy type, stainless steel type, carbon steel type, etc.
When the torque requirements above 7000Nm, the rack and pinion actuator is often not cost-effective, for this reason, it is generally recommended to choose a high-power scootch fork Pneumatic Actuator when choosing a Pneumatic Actuator, which can provide higher torque output. The symmetrical and beveled steel fork mechanism of the high-power fork type pneumatic actuator allows for two torque output characteristics. Among them, the beveled steel fork mechanism has a very high starting torque and low running torque, which is suitable for the control of butterfly valves; The torque curve of the symmetrical steel fork mechanism is more balanced, which is mainly suitable for the control of ball valves and plug valves. 4. Advantages of skettle fork pneumatic actuator: 1. Scotch fork pneumatic actuator not only meets the explosion-proof requirements, but also has small size, light weight and large torque, because it adopts a unique "single-cylinder double-piston-fork variable torque" transmission structure design. As a single-cylinder design, the scotch fork pneumatic actuator is undoubtedly half the size of the rack and pinion actuator of the two-cylinder design. 2. When the fork pneumatic actuator is working, the output torque can change with the change of angle, and the torque value is the largest at the opening or closing position of the valve, which is completely in line with the law of the valve. Compared to rack and pinion actuators, the use of scotch pneumatic actuators is more torque-saving, because the torque of rack and pinion actuators is constant.
3. The rattle fork pneumatic actuator adopts a symmetrical design. The maximum output torque is 0 degrees and 90 degrees, and the output torque in the middle position is the smallest, corresponding to the torque characteristics generated by the ball valve; 4. The fork pneumatic actuator adopts an inclined plane design, which can output a larger starting torque, which is more in line with the torque characteristics of the butterfly valve; 5.The cylinder wall of THEOBORN scootch fork pneumatic actuator adopts hard chrome plating process to ensure longer practical life; 6. The track of the fork pneumatic actuator adopts high-frequency quenching and grinding, and the slider adopts square self-lubrication process to ensure permanent practicability; 7. Scottish York pneumatic actuator DRG series actuator has a full set of installation accessories, including: manual handwheel, hydraulic manual, limit switch, Solenoid Valve, positioner and other control elements.
