2021 Good Quality Electric Pneumatic Actuator - QS Series – Hankun

Hankun Company can provide all accessories for pneumatic actuators such as limit switches, solenoid valves, air filter regulators, positioners, etc. For international customers, we can provide international brands such as ROTORK, SIEMENS, Honeywell, Emerson and other mainstream brands to meet all customer requirements.

Valve positioner is a device that receives 4-20mA weak current signals from the controller or control system, and sends air signals to the pneumatic actuator to control the valve position.

Valve positioners can be divided into pneumatic valve positioners, electro-pneumatic valve positioners and intelligent valve positioners according to their structure and working principle.

The valve positioner can increase the output power of the control valve, reduce the lag in the transmission of the regulating signal, accelerate the movement speed of the valve stem, improve the linearity of the valve, overcome the friction of the valve stem and eliminate the influence of unbalanced force. So as to ensure the correct positioning of the control valve.

It is used in conjunction with a pneumatic actuated control valve to form a closed loop control loop. The direct current signal given by the control system is converted into a gas signal for driving the control valve to control the action of the control valve. At the same time, feedback is performed according to the opening of the control valve, so that the valve position can be correctly positioned according to the control signal output by the system.

Common positioners include mechanical positioners with higher cost performance and smart positioners with a higher degree of intelligence.

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Product Introduction

QS series part turn worm gear box is mainly used in ball valve, butterfly valve and damper. It is the best choice for electric power, oil and gas, petrochemical, water treatment and conventional industrial process control. There are a variety of models and speed ratios to choose from QS series.

QS series worn gear box is a curve movement type 90 degree rotary bevel gear reducer designed from the user’s application concept, and the shape is curvilinear and can be perfectly combined with the product, which is very beautiful. The surface painting meets the requirements of industrial grade and anti-corrosion requirements. Inside rotating part is coated with efficient and environmentally grease which effectively improves the mechanical efficiency of the product, high strength aluminum bronze nuts prevent corrosion and wear, it is equipped with high strength gear processed by numerical control equipment and heat treated. The valve stem protection cover prevents dust and rain from entering the assembly. The output shaft is installed flexibly, and the connection dimension is convenient to process, the input indicator board can clearly indicate the valve position of the matching valve, which is convenient for customers to observe the operation status of the valve.

Torque range from 300nm to 600000nm, Mechanical limit 0-90°(± 10 ° adjustable) including a total of 11 platforms, each platform can provide multiple transmission ratios for users to choose, and can provide a variety of connection methods and sizes, connection match with ISO5210 standard. The protection grade is IP67, IP68 is optional, and the working environment temperature is – 40℃—120℃.

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Well-run gear, qualified revenue workforce, and superior after-sales companies; We've been also a unified huge loved ones, anyone persist with the organization benefit "unification, determination, tolerance" for 2021 Good Quality Electric Pneumatic Actuator - QS Series – Hankun , The product will supply to all over the world, such as: luzern, Sheffield, Mombasa, We have a good reputation for stable quality products, well received by customers at home and abroad. Our company would be guided by the idea of "Standing in Domestic Markets, Walking into International Markets". We sincerely hope that we could do business with customers both at home and abroad. We expect sincere cooperation and common development!

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