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Shandong Daruike Fluid Control Co., Ltd.

Contact: He Manager

Mob: 18660779487

Tel: 0531-86040075

Fax: 0531-86040073

Web: www.daruike.cn

E-mail: heqinyang@126.com

Add: No. 1006, Block B, Lushang Shengjing Plaza, No. 6 Qingfeng Road, Lixia District, Jinan City, Shandong Province


Pneumatic valve working principle

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Pneumatic valve working principle

The compressed air is used to push the movement of multiple sets of combined pneumatic pistons in the actuator, the force is transmitted to the beam and the characteristics of the inner curved track, the hollow core spindle is driven to rotate, the compressed air disk is sent to each cylinder, and the inlet and outlet positions are changed to change the spindle rotation. Direction, according to the required rotation torque of the load (valve), the number of cylinder combinations can be adjusted to drive the load (valve) to work. Pneumatic valve manufacturer


Two-position five-way solenoid valves are usually used with double-acting pneumatic actuators. Two positions are controllable: on-off, five-way is five-channel ventilation, one of which is connected to the air supply, two and two The inlet and outlet ports of the external air chamber of the cylinder are connected, and the two inlet and outlet ports of the internal air chamber are connected. The specific working principle can refer to the working principle of the double-acting pneumatic actuator. Due to the increasing number of control methods and means, there are many methods for controlling pneumatic actuators in actual industrial production and industrial control. The following are commonly used.


Intelligent display


The intelligent display instrument is an instrument for monitoring the working state of the valve and controlling the working period of the valve. It monitors the working state of the valve through two position sensors to determine whether the valve is in the open or closed state, and the number of the valve switch is programmed by programming. And there are two channels of 4 to 20 mA output corresponding to the valve opening and two-legged normally open output contacts. Through these output signals, the switching action of the valve is controlled.


Control System


PLC is more and more widely used in the control system. Since this solution is developed on the OMRON PLC, it is introduced by OMRON PLC.


Hardware components: 1 computer, 1 set of PLC (including CPU, I/O module, ID212, OC224, AD003 module), 2 relays, 2 solenoid valves, 1 pneumatic valve actuator.


common enquiries


1. The specifications and categories of pneumatic valves produced shall comply with the requirements of the piping design documents.


2, the model of the pneumatic valve should indicate the national standard number requirements. If it is an enterprise standard, the relevant description of the model number should be indicated.


3. The working pressure of the pneumatic valve requires ≥ the working pressure of the pipeline. Under the premise of not affecting the price, the working pressure of the valve should be greater than the actual working pressure of the pipeline; any side of the pneumatic valve should be able to withstand 1.1 times. The valve pressure value does not leak; when the valve is opened, the valve body should be able to withstand the requirements of twice the valve pressure.


4, pneumatic valve manufacturing standards, should be based on the national standard number, if it is an enterprise standard, the procurement contract should be accompanied by corporate documents.


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Key words:Pneumaticvalvemanufacturer,Electricvalvemanufacturer,Regulatingvalvemanufacturer

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