10Nm-500Nm Gear Rack Multi Position Pneumatic Valve Actuators Drive Three Stage Double Acting

DINKONDA GLOBAL Power Plants Special Gear Rack Multi Position Pneumatic Drive 0 °, 45 °, 90 ° Three-stage Angular Stroke Positioning Pneumatic Actuator

Product Overview
The three-stage angular stroke pneumatic actuator belongs to the gear rack multi position pneumatic drive device, which uses clean and dry compressed air as the power medium and can achieve angular stroke positioning output at three positioning positions (such as 0 °, 45 °, and 90 °). Unlike ordinary two position actuators, it can achieve valve middle position stop, accurately complete range adjustment, multi position switch control, and is suitable for angular stroke valves such as ball valves and butterfly valves. It is widely used in process pipeline systems that require three position control.

Structural Composition
1. Aluminum alloy cylinder assembly
Adopting extruded aluminum alloy cylinder barrel, with hard anodized inner wall treatment, low friction coefficient, wear and corrosion resistance, light weight, high strength; Blue end caps at both ends, bidirectional output shaft structure at both ends, convenient for forward and reverse assembly; A standard air source interface is reserved on the surface of the cylinder block, ensuring smooth air supply and exhaust, and stable operation.

2. Gear and rack transmission mechanism
Internal precision gear rack pairs convert piston linear motion into output shaft rotational motion, ensuring smooth transmission and minimal backlash; Built in three-stage positioning mechanical component, relying on internal limit piston to achieve intermediate position locking, realizing three position fixed-point stop, with good positioning repeatability.

3. Top position indicator component
The top is equipped with a yellow blue dual color visual position indicator, which intuitively displays the current valve position status, making it easy for on-site personnel to quickly identify the position of the valve with the naked eye. The indicator can be paired with valve position feedback accessories.

4. External adjustable limit screw
Two sets of adjustment screws are installed on the side of the cylinder body, which can independently adjust the fully open, middle position, and fully closed angles without disassembling the entire machine. It is easy to debug on site and effectively controls the angular accuracy of each position to prevent overtravel.

5. Standardized attachment installation interface
The top output interface complies with the ISO5211 international standard and can be directly connected to various angular stroke valves; Reserve installation holes for solenoid valves, air filter pressure reducing valves, valve position feedback devices, and limit switches to achieve local feedback and remote signal acquisition.

Core Features
1. Three stage positioning, multi gear control
It can achieve fixed-point stopping at 0 °, middle position, and 90 ° positions, meeting the process requirements of valve "closed half open fully open", suitable for split flow, gas distribution, and split range control conditions. Ordinary two position pneumatic actuators cannot achieve this function.

2. Gear rack transmission, smooth operation
Precision gear rack structure, stable output torque, and low impact during opening and closing operation; Aluminum alloy cylinder body anodized treatment, wear-resistant and corrosion-resistant, with a long service life.

3. Bidirectional output shaft, flexible installation
Both ends are equipped with output shafts, supporting forward and reverse assembly methods to adapt to different valve installation spaces and reduce on-site installation difficulty.

4. Independent adjustable three position limit
The three sets of corner positions can be individually adjusted, with high positioning accuracy and small repeated positioning errors, meeting the control requirements of the process for the middle opening.

5. Explosion proof configuration is optional
It can be equipped with explosion-proof solenoid valves and explosion-proof limit switches, achieving Exd Ⅱ CT6 explosion-proof level, suitable for flammable and explosive hazardous areas such as chemical and gas industries.