DINKONDA GLOBAL Power Plants Special Three Position Spring Reset Single Acting Shift Fork Pneumatic Valve Actuators With Side Mounted Manual Handwheel

Product Overview
This device belongs to a three position spring reset single action shift fork pneumatic actuator with a side mounted manual handwheel, which has the functions of fully open, neutral, and three position adjustment; The left side is the main driving cylinder, the right side cylinder has a built-in reset spring, and an external red manual operation handwheel is installed on the side. It can achieve pneumatic remote control, on-site manual opening and closing, and intermediate position positioning. It is commonly used for flue dampers, air volume control dampers, and ventilation cut-off valves that require three position fixed-point control in thermal power plants.

Structural Composition
1. Main drive cylinder assembly
The left large capacity drive cylinder relies on multiple stainless steel pull rods to lock the flanges at both ends; The cylinder body is made of high-strength cast steel and orange anti-corrosion paint, which is resistant to pressure and wear, and suitable for high-temperature and dusty flue conditions.

2. Central fork transmission box
The internal roller fork transmission structure amplifies the torque at the end of the stroke, which can overcome dust accumulation and pipeline pressure resistance; Built in three position positioning mechanism, capable of locking the valve in three positions: fully open, middle limit, and fully closed; Reserved maintenance bolt holes on the side of the box.

3. Right spring reset chamber
The independent spring cylinder is equipped with high-strength energy storage springs inside, which drive the valve to automatically return to the safe position when the gas source loses pressure; A lifting lug is installed above the cylinder to facilitate the lifting and handling of equipment.

4. Side external manual handwheel
The red spoke type side mounted handwheel is independently arranged at the end of the spring cylinder. In case of gas source failure or power outage maintenance, the valve switch can be manually operated, which is labor-saving and does not occupy the upper space of the actuator.

5. Standard output installation flange
The left output flange complies with the ISO5211 universal installation standard and is compatible with various 90 ° angle stroke valve bodies such as baffle dampers, butterfly valves, ball valves, etc.

Product Features
1. Three gear control
Supports three working positions: fully open, adjustable in the middle, and fully closed, suitable for flue air volume regulation and baffle throttling conditions, different from ordinary two position switch type actuators.

2. Single acting gas spring reset
After the gas is cut off, the spring automatically drives the valve back to the preset safety station, meeting the safety interlock specifications of the boiler flue gas system.

3. Side mounted independent handwheel structure
The handwheel is installed laterally, with no obstruction in the top space, making it easy to install electronic control accessories such as solenoid valves, limit switches, and locators. It is also convenient for manual operation on site.

4. Fork type high torque output
The end torque is amplified, which can drive large-diameter heavy-duty smoke baffle doors and resist dust jamming.

5. Split dual cylinder structure
The drive cylinder and spring cylinder are independent of each other, with uniform force distribution, low operating vibration, and a sealed structure that is resistant to high temperature, dust, and smoke corrosion.

6. Complete expansion accessories
Hydraulic buffer damping, explosion-proof solenoid valve, travel switch, valve position transmitter, and intelligent valve positioner can be installed.

Application
1. Thermal power industry: boiler induced draft fan damper, desulfurization and denitrification flue control damper, hot air isolation damper, three speed air volume control damper door;

2. Chemical waste gas treatment system: Three position adjustable cut-off damper for high-temperature flue gas pipeline;

3. Metallurgical, heating, sewage treatment ventilation pipeline throttling baffle, heavy-duty butterfly valve;

4. Mainly used for regulating valve conditions that require intermediate gear holding, remote pneumatic, on-site manual, and safe reset in case of gas loss.

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.