The GT series valve pneumatic device is a partially rotary pneumatic actuator with an output shaft return angle of 90 °. It can be combined with ball valves, butterfly valves and other valves to form pneumatic valves, and is also suitable for other mechanical devices that require 90 ° rotary motion. This product can achieve the action control of opening and closing positions, as well as different requirements for continuous action control (automatic adjustment control), by using accessories such as solenoid valves. Users can choose according to their actual needs.
1、 Main features
1. The same specifications include double acting and single acting (spring reset).
2. The standard rotation axis angle can be adjusted within the range of -5~+5 ℃.
4. Anodized electroplating on the surface of the shell for corrosion protection; Rotating shaft coated with hard nickel phosphorus alloy; The screws and nuts are made of stainless steel.
5. Single acting springs are pre installed in the spring seat, making it easy to assemble or supplement the number of springs.
6. Standardized module design for connection and installation interfaces, facilitating the installation of ball valves, butterfly valves, signal boxes, and control accessories.
7. You can choose to rotate clockwise or counterclockwise; The screws at both ends can be adjusted to a smaller angle than the calibration angle.

2、 Main parameters

	Standard parameters	Special Parameters
basic design	Pneumatic dual piston actuator Model GTD=double acting. Model GTE=single acting (with spring return).	The three position actuator has two special pistons.
Manufacturing characteristics	Ultra wide surface rack (piston) small gear transmission technology. The contact surface between the piston, gear, and housing is equipped with sliding bearing bushings and guides made of low friction materials. Single acting type with safety spring seat.
Adopting standards	Connection between actuator and valve: Four or eight bolt holes in accordance with DIN/ISO standards 5211, the shaft assembly hole meets the standard DIN 3337. Connection between actuator and signal box: GTD/GTE040+090 connected via adapter board Connection between actuator and signal box: compliant with VDI/VDE 3845	There are various shapes and sizes of assembly shaft holes available for selection
Part Material	Shell: Aluminum alloy surface anodized treatment. End cap: Aluminum alloy surface spray treatment. Piston/Rack: Aluminum alloy. Sealing O-ring: Nitrile rubber=NBR 70. Bearing washer/guide ring: plastic.	Shell and end cap: spray coating treatment. Special corrosive environment:
Ambient Temperature	-20~+90℃	-40~+160℃
ROTATION	Double acting=90 ° Single acting=90 ° The rotation axis angle of the standard actuator can be adjusted from both ends to -5~+5 ℃	Choose clockwise or counterclockwise rotation as needed. The three position actuators have 0-45-90 °, 0-60-120 °, 0-90-180 °, and 0-120-240 °
torque	3~10000Nm
air pressure	2~8bar，
attachment	Electromagnetic valve, electrical locator, limit switch (with mechanical and proximity types), air source processing triple component (with pressure reducer, filter, oil mist device), manual operating mechanism.	Adjust the angle and two position cut-off interlock device

Single acting (spring reset)
When compressed air enters the middle chamber between the two pistons (C) of the cylinder from the air port (B), it separates the two pistons and moves them towards the two ends of the cylinder, forcing the springs at both ends to compress. The air in the air chambers at both ends is discharged through the air port (A), and at the same time, the racks of the two pistons (C) synchronously drive the output shaft (D) (gear) to rotate counterclockwise by 90 degrees. After the compressed air passes through the solenoid valve, switch back. The two pistons of the cylinder move in the middle direction under the elastic force of the spring, and the air in the middle chamber is discharged from the air port (B). At the same time, the gears of the two pistons (C) synchronously drive the output shaft (D) (gear) to rotate clockwise by 90 degrees. You can adjust the slight angle from both ends. Loosen the nut (E) and use an Allen wrench to turn the adjusting bolt (F) to adjust the desired angle and lock the nut (E).


4、 Assembly type (select delivery status)