Double Acting Pneumatic Valve Actuators Dual Piston Rack And Pinion Gear Rotation

DINKONDA GLOBAL Power Plants Special GT/AT Series Double Acting/single Acting (spring Reset) Dual Piston Rack And Pinion Gear Rotation With Handwheel Mechanism Pneumatic Actuator

Product Overview
The GT/AT series pneumatic actuator with handwheel mechanism adopts a dual piston rack and pinion rotating structure design, which is divided into two types: double acting and single acting (spring reset). It is a driving device for angular stroke valves such as ball valves and butterfly valves. The equipment integrates an independent manual operating mechanism, which is driven by compressed air under normal working conditions. In the event of gas failure or loss, the valve can be manually opened and closed on site through the handwheel to ensure the safety and controllability of the process system. It is widely used in industrial self-control pipelines such as petroleum, chemical, water treatment, gas, HVAC, etc.

Structural Composition
1. Cylinder body
The cylinder barrel is made of extruded aluminum alloy material, with a hard anodized inner wall that is wear-resistant, has a low coefficient of friction, and is corrosion-resistant; Orange aluminum alloy end caps at both ends, built-in dual piston components, coupled with precision rack and pinion gear transmission pairs, convert piston linear motion into output shaft 90 ° angular travel rotation.

2. Transmission components
Double piston rack and pinion structure, with precise meshing between gears and racks, small transmission clearance, and stable output torque; Dual action relies on alternating intake of air from both sides to achieve switching; **Single acting (spring reset) * * Built in pre tensioned spring, ventilation action, automatically reset to the safe position by the spring in case of gas loss (fully open/fully closed can be customized).

3. Manual handwheel mechanism
Equipped with a red cast iron handwheel, fork switching structure, and a locking handle. Can switch between pneumatic and manual modes, the handwheel mechanism disengages from the transmission during pneumatic operation and does not idle with the actuator; When there is a power outage due to gas loss, switch to manual mode and rotate the handwheel to directly operate the valve, meeting the on-site emergency operation requirements.

4. Top position indicator
The top is equipped with a visual valve position indicator device, which provides intuitive feedback on the fully open and fully closed positions of the valve. It can be directly matched with accessories such as limit switches and valve position feedback devices.

5. Installation base and interface
The output flange complies with the ISO5211 international standard, with strong universality and can be directly assembled with various types of angular stroke valves; A standard air source interface is reserved on the side of the cylinder body, which can be installed with automatic control accessories such as solenoid valves and air filter pressure reducing valves.

Core Features
1. Double piston rack and pinion structure
Symmetrical dual piston design, uniform force distribution, smooth opening and closing action, constant output torque, small backlash, long service life; Support two selection schemes for double acting and single acting spring reset.

2. Pneumatic and manual integration, reliable emergency response
Integrated independent handwheel operating mechanism, no need for additional disassembly and assembly. In case of gas loss or malfunction, the valve can be manually operated on site to meet safety interlocking and maintenance conditions. The handwheel is equipped with a locking device to prevent misoperation.

3. Flexible selection, customizable safety mode
The single acting spring reset type can be customized with air loss on or off as needed to meet the requirements of process safety interlocking; The double acting type has a larger torque and is suitable for large-diameter, high-pressure differential valves.

4. Aluminum alloy lightweight cylinder body, corrosion-resistant and durable
The cylinder body is treated with hard anodizing, which is resistant to water vapor and slight corrosion, and the overall weight is light; The sealing components come standard with NBR nitrile rubber and can be upgraded to FKM fluororubber, suitable for high temperature and corrosive media conditions.

5. Standardized interface, easy attachment expansion
The top meets the ISO5211 standard and can be directly equipped with solenoid valves, limit switches, valve position transmitters, and air pressure reducing valves. The explosion-proof version can be equipped with explosion-proof electrical accessories to meet the needs of hazardous areas.

FAQ:
Q1.What about the lead time?
A: 5-7 days for Sample preparing ,15-20 working days for mass production.

Q2. Is it OK to print my logo on led light product?
A: Yes. Please inform us formally before our production.

Q3: Do you offer guarantee for the products?
A: Yes, we offer 1 years warranty to our products.

Q4: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.

Secondly, during the guarantee period, we will send new lights with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.

Company Profile

DINKONDA GLOBAL has been developing and supplying equipment and components for specialized thermal power plants and related industries for 20 years and is one of the a market-leading global manufacturers and providers in the industry. We have a professional technical research and development team, professional management talents and dozens of quality inspection personnel. The company has more than 50 CNC machining centers, CNC lathes, various inspection equipment and other professional equipments.
Our comprehensive product portfolio and over 20 years of industry knowledge mean customers can rely on us to deliver innovative, reliable and economic products. Chenglei products are designed and manufactured with quality components and clear user interfaces for quick and safe operation in the field. Our strict product development and testing ensures long-lasting performance and continued reliability. Our independently developed and produced CL series valve electric actuators are widely used in various industries such as Oil & Gas, Water & Power, and Chemical, Process & Industrial .
Customers rely on us for innovative, high quality and dependable products for managing the flow of liquids, gases and powders. We help customers around the world to reduce emissions, improve efficiency, minimize their environmental impact and assure safety.