English
2022
Pneumatic actuator is an actuator powered by compressed air. Pneumatic actuators are used in conjunction with electrical converters and valve positioners to continuously receive control commands from DCS a...
2022
Electric actuator is an indispensable part of automatic control system and a very important driving device in industrial process control system. It uses electric energy as power, accepts a certain signal a...
2022
Let's begin with the "triple eccentric butterfly valve" to show how a fundamental principle works. The butterfly valve's valve body has a transverse valve port (a valve diameter) attached to the pipe that ...
2022
Butterfly valve is simple in structure, small in size and light in weight. It consists of only a few components and is easy to operate. Its structural principle is suitable for making large-diameter valves...
2022
After the pneumatic actuator is used for a long time in the offshore oil field, there will be some failure problems. Today we will explain how to solve the problems encountered.
2022
Rotary pneumatic actuator is an indispensable valve drive device in process automation control system. According to its mode of action, it is divided into double-acting (DA) type and single-acting (SR-spri...
2022
The role and classification of valves. The valve is an important pressure pipeline component in a petrochemical plant with a large volume and a wide range. It has the functions of cutting off, regulating, ...
2022
The purpose of using a check valve is to prevent the reverse flow of the medium, and a check valve is generally installed at the outlet of the pump. In addition, a check valve should also be installed at t...
2022
Among the users who use large-diameter globe valves on a daily basis, they often report a problem, that is, when large-diameter globe valves are used in media with a relatively large pressure difference, s...
2021
According to the engineering experience, the handle modulating butterfly valve is recommended when the pipe diameter is less than or equal to DN 100 mm and the worm gear seal butterfly valve is recommended...
2021
In the cylindrical passage of Posi seal butterfly valve, the disc-shaped butterfly plate rotates around the axis and its rotation angle is between 0 ° and 90 °. When the rotation angle is 90 degrees, the a...
2021
In the cylindrical passage of Posi seal butterfly valve, the disc-shaped butterfly plate rotates around the axis and its rotation angle is between 0 ° and 90 °. When the rotation angle is 90 degrees, the a...
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