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After reading this, will you still question the working efficiency of pneumatic actuators?


Release time:

2022-03-23

Wuxi Xinming self-control valve industry will introduce you to these after reading them, and you will still question them.Pneumatic actuatorThe efficiency of the work.

After reading this, will you still question the working efficiency of pneumatic actuators?

Wuxi Xinming self-control valve industry will introduce you to these after reading them, and you will still question them.Pneumatic actuatorThe efficiency of the work.

The pneumatic actuator features compact double piston gears, rack-type structure, accurate meshing, high efficiency and constant output torque. Aluminum cylinder, piston and end cover, compared with the standard structure of the actuator is light weight. Cylinder is extruded aluminum alloy, and by hard positive oxidation treatment, the inner surface is hard, strength, high hardness. The sliding bearing made of low friction material is used to avoid direct touch between metals, with low friction coefficient, flexible rotation and long service life. The installation and connection scale of pneumatic actuator and valve shall be designed according to international standard ISO5211, DIN3337 and VDI/VDE3845, and can be exchanged with general pneumatic actuator. The air supply port complies with NAMUR specifications. The shaft assembly hole at the bottom of the pneumatic actuator (in accordance with ISO5211 specifications) is double square, which is convenient for linear or 45 ° angle installation of valves with square rods. Many people only know about pneumatic actuators, and the accessories of pneumatic actuators are not very well understood, but in factPneumatic actuatorThe effect and importance of the attachment is not less than the pneumatic actuator itself. Xiao Bian will explain the effect of pneumatic actuator accessories. The top of the output shaft and the hole at the top meet the NAMUR specification. The adjusting screws at both ends adjust the open viewpoint of the valve. The same standard has double effect type and single effect type (spring reset). The direction can be selected according to the needs of the valve, clockwise or counterclockwise rotation.

According to user needs to install the solenoid valve, positioner (opening indication), return, a variety of limit switches and manual operation device. The advantage of pneumatic actuators is to withstand successive gas signals and output linear displacement (after the power/gas conversion device is added, it can also withstand successive electrical signals), and some can output angular displacement after being equipped with rocker arms. Pneumatic actuators have positive and negative effects. The movement speed is high, but the speed will be slower when the load is added. The output force is related to the operating pressure. The reliability is high, but the valve cannot be adhered to after the gas source is interrupted (it can be adhered to after adding the retaining valve). It is inconvenient to complete segment control and program control. Simple maintenance, good adaptability to the environment, large output power, with explosion-proof function.

The solenoid valve is one of the pneumatic actuator accessories, relying on the solenoid valve to complete the remote control, the solenoid valve for the pneumatic valve "open" or "closed" electronic control operation. Comply with NAMUR articulation specification, installed directly beside the pneumatic actuator, without pipe articulation. According to the requirements of the instrument control system, choose single electric control or double electric control; two-position five-way solenoid valve with double-effect actuator, two-position three-way solenoid valve with single-effect actuator, the whole machine is simple, compact, small in size and long life. The product has basic type and explosion-proof type, explosion-proof grade ExdIIBT4, its explosion-proof grade is suitable for factories.

The above is Wuxi Xinming automatic control valve industry to introduce the relevant content.

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