Pneumatic actuator manufacturer to introduce the characteristics of pneumatic actuator
First, the main characteristics of pneumatic actuators
1. The same specifications have dual functions. Single action (spring return).
2. Standard rotation axis Angle can be adjusted to -5. ~ + 5 ℃ range.
3. Plastic bearing bushing is used for all sliding parts. Guide, maintain small friction, effective resistance to wear.
4. Anodized electroplating on the surface of the shell, anti-corrosion protection; Rotating shaft hard nickel-phosphorus alloy plating; Screw; . Stainless steel nuts.
5. The spring seat is preloaded with single acting spring, easy to assemble or increase the number of springs.
6. Connection. Installation interface standardized module design, easy to equip with ball valve. Butterfly valves. Signal boxes and control accessories.
7. Choose clockwise rotation or counterclockwise rotation; The adjustment screws at both ends can be adjusted below the calibration Angle.
8, special corrosion environment can be used stainless steel shell (please contact us)
Two, the main parameters of the pneumatic actuator
Standard parameters for special parameters
The basic design of pneumatic double piston actuator
Model GTD= Double acting type.
Model GTE= Single acting (with spring return). The three-position actuator has two special pistons.
Super wide face rack (piston) pinion drive technology.
The sliding bearing bushing is made of low friction material and is used for piston, gear and shell contact surface.
Safety spring seat Safety spring seat.
Standard actuator and valve connection: four and eight bolt holes meet DIN/ISO standards
Shaft assembly hole conforms to DIN3337.
Connection with the signal box: GTD/GTE040+090 is connected through the conversion board
Actuators with SIGNAL BOX connection: VDI/VDE assembly shaft holes are available in a variety of shapes and sizes
Material housing: Aluminum alloy surface anodized.
End cover: aluminum alloy surface spray treatment.
Piston/rack: Aluminum alloy.
Seal O ring: butadiene rubber =NBR70.
Bearing washer/guide ring: plastic. Shell and end cover: spray treatment.
Special corrosion environment: Choose stainless steel material (please contact us) O ring: fluorine rubber
Operating ambient temperature -20~+90℃-40~+160℃
Rotary Angle double action =90° Single action =90°
Standard actuator rotation axis Angle can be adjusted from both ends -5~+5℃ clockwise rotation or counterclockwise rotation is selected according to need. 45-9045-0-90 °, 0 to 60-120 °, 0-90-180 °, 0-120-240 °
Output torque 3~10000Nm
Air pressure 2~8bar, 10bar.
Accessories Solenoid valve, electrical positioner, limit switch (mechanical, close), air source treatment triplet (decompressor, filter, oil mist), manual operation mechanism. Angle adjustment and two cut interlocking devices
Three, working principle
double-acting
Compressed air from the air port (B) into the cylinder two pistons (C) between the cavity, the two pistons are separated to the two ends of the cylinder, the air is discharged simultaneously through the air port (A), so that the two pistons (C) rack synchronous drive output shaft (D) (gear)90 degrees counterclockwise rotation. Micro Angle can be adjusted from both ends, the nut can be loosened (E) with a hex wrench to adjust the adjustment bolt (F) to adjust the required Angle, lock the nut (E). Instead, compressed air from the air port (A) when entering the air cavity at both ends of the cylinder, moves the two pistons between the cylinders, and the air in the middle air cavity through the air port (B) simultaneously exits both pistons (C) rack synchronously drives the output shaft (D) (gear) to rotate 90 degrees clockwise.
Single acting (spring return)
Compressed air shrink air (B) two pistons into the cylinder (C) between the cavity, the two pistons separated to the ends of the cylinder, forcing the spring compression at both ends, the air at both ends through the air port (A) discharge, while the two pistons (C) rack synchronous drive output shaft (D) counterclockwise rotation of 90 degrees (gear). Replace the compressed air through the solenoid valve. The two pistons of the cylinder move to the middle under the elasticity of the spring, and the air of the middle air chamber is discharged simultaneously from the air port to the air port (B), so that the two pistons (C) rack synchronously drive the output shaft (D) (gear) clockwise 90 degrees. Micro Angle can be adjusted from both ends, the nut can be loosened (E) with a hex wrench to adjust the adjustment bolt (F) to adjust the required Angle, lock the nut (E).
4. Assembly type (select delivery state)
