DINKONDA GLOBAL Power Plants Special Single Acting/double Acting 0~90° Angular Stroke Gear Rack Pneumatic Drive Ex D IIC T6 Explosion-proof Pneumatic Actuator

DINKONDA GLOBAL Power Plants Special Single Acting/double Acting 0~90° Angular Stroke Gear Rack Pneumatic Drive Ex D IIC T6 Explosion-proof Pneumatic Actuator

Product Overview

The AT/SR series explosion-proof pneumatic actuator is an angular stroke gear rack pneumatic drive device. The AT is a double acting type and the SR is a spring reset single acting type. The entire set of valve position feedback components, solenoid valves, and gas source processing units meet the Ex d IIC T6 explosion-proof rating and are specifically designed for hazardous chemical conditions containing flammable and explosive gases and vapors. The equipment relies on compressed air to drive and output a 90 ° angular stroke, and is equipped with ball valves, butterfly valves, and plug valves to achieve the cutting off of pipeline medium switches. Positioners can also be selected as needed to achieve adjustment and control, suitable for high-risk explosion-proof automation pipeline systems such as petroleum, chemical, and gas.

Structural Composition

1. * * AT/SR cylinder body**
The cylinder body is made of aluminum alloy extrusion molding, and the inner wall is hard anodized for wear and corrosion resistance. AT dual action relies on pneumatic bidirectional drive; SR single acting built-in energy storage spring, once gas is lost, the valve automatically returns to the preset safe position (fault on/off optional). Internal gear rack transmission pair with stable output torque, equipped with dust-proof sealed end caps at both ends, and sealed with aging resistant fluororubber. The bottom adopts ISO5211 international standard installation flange, which is compatible with the vast majority of angular stroke valves.

2. * * Exd IIC T6 explosion-proof solenoid valve**
The integrated explosion-proof two position five way solenoid valve is the core of the gas path reversing of this equipment. Receive electrical signals from the central control switch, switch the direction of cylinder inlet and outlet, and control the opening and closing of valves. The shell is of explosion-proof structure, meeting the ExdIICT6 explosion-proof requirements, and can be directly installed in hazardous areas to prevent electric sparks from igniting explosive media.

3. Explosion proof valve position reply limit switch box**
Install explosion-proof valve position feedback switch box on the top, equipped with spherical visual valve position indicator, to intuitively identify the fully open/fully closed status of the valve on site; Built in mechanical explosion-proof limit switch, output passive switch contacts, remotely upload valve in place signal to DCS system. The explosion-proof shell can withstand internal explosion pressure and prevent flames from spreading outward.

4. * * Air source filter pressure reducing valve**
Side mounted air source processing component, integrated pressure gauge, can filter and remove water from compressed air, stabilize pressure, provide clean and stable air source for solenoid valves and cylinders, avoid impurities from wearing explosion-proof precision components, and extend the service life of the entire explosion-proof valve group.

5. Explosion proof connection components**
Adopting explosion-proof joints, flame-retardant PU air pipes, and explosion-proof installation brackets, all electrical interfaces are designed in accordance with explosion-proof specifications, and the entire system meets the installation standards for hazardous areas.

Core Features

1. * * Whole machine Ex d IIC T6 explosion-proof certification**
The solenoid valves and limit response boxes matched with the actuator have all reached the ExdIICT6 explosion-proof level and can be used in IIC explosive gas environments. The maximum surface temperature does not exceed 85 ℃ and is suitable for high-risk media such as hydrogen and acetylene. The explosion-proof safety redundancy is high.

2. * * Dual structure selection to meet different safety processes**
AT double acting type: the valve is opened and closed when the gas source is normal, and the valve remains in place after the gas is cut off, suitable for continuous and stable production circuits;
SR spring reset type: Under gas and power loss conditions, the spring driven valve automatically resets to ensure process safety and cut off, used for emergency interlock protection of pipelines.

3. * * Gear rack transmission, stable and reliable operation**
Symmetrical dual piston gear rack structure, uniform torque output, small opening and closing impact, high repeatability positioning accuracy; The inner wall of the cylinder is hard anodized, with a low coefficient of friction, and is not easily worn due to frequent opening and closing over a long period of time.

4. * * On site visualization+remote valve position feedback**
Top visual indicator allows for on-site inspection of valve position without the need for power on; The explosion-proof limit switch outputs passive switch signals, and the central control system monitors the valve switch status in real time, supporting emergency interlock protection logic.

5. * * Modular integration, easy on-site installation**
The complete set of actuators, explosion-proof solenoid valves, explosion-proof feedback devices, and gas source pressure reducing valves are supplied to reduce the workload of selecting and assembling explosion-proof accessories on site. The prefabrication of gas pipelines also reduces the risk of on-site explosion-proof construction.

6. Excellent environmental adaptability**
Fluororubber seals are optional and can be adapted to high and low temperature working conditions; Aluminum alloy cylinder body is lightweight, impact resistant, with a protection level of IP65, dustproof and waterproof, suitable for outdoor and humid hazardous areas.

Technical Parameters

-Product model: AT (double acting)/SR (single acting spring reset) explosion-proof pneumatic actuator
-Explosion proof grade: Ex d IIC T6
-Output angle: 0~90 ° angular travel
-Cylinder body material: aluminum alloy, hard anodized inner wall treatment
-Transmission form: Double piston gear rack
-Air source medium: dry and clean compressed air
-Gas source working pressure: 0.4~0.7MPa
-Electromagnetic valve: Explosion proof type two position five way, power supply AC220V/DC24V optional
-Valve position feedback: Explosion proof mechanical limit switch, passive switch contact
-Protection level: IP65
-Environmental working temperature: -20 ℃~+80 ℃, special high and low temperatures can be customized
-Installation standard: ISO5211 international valve connection flange
-Suitable valves: explosion-proof ball valves, explosion-proof butterfly valves, plug valves, and other 90 ° angle stroke valves

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.