Design of Ball Valves Used in Pipelines
Design of ball valves used in pipelines requires high safety and reliability. The idea should be implemented in the whole process, including design, process specification, parts processing, type testing,...
Technical Articles
Usage and Features of Stream Extraction Check Valves
Usage of stream extraction check valves Stream extraction check valves are mainly used for stream extraction system in power plants or thermal power plants. The vales are also used for non-corrosive media...
What Is Motive Seal of Valves?
Motive seal of valves mainly means stem seal. Media inside valves cannot leak out with stem moving. It is also the center of motive seal of valves. Currently, motive seal of valves is mainly with stuffing...
Reasons Causing Sealing Faces of Valves Damage
Reasons causing sealing faces of valves damage can be classified into factitious damage and natural damage. Factitious damage includes culpable design, unskilled manufacturing, improper selection, inappropriate...
A Brief Introduction of Pneumatic Ball Valves
Pneumatic ball valves develop from plug valves. Pneumatic ball valves can also be rotated 90 degrees, the same as plug valves. The difference is that ball valves use a ball as their cock. A hole exists...
Advantages and Installation Notes of Globe Valves
Globe valves, also called as stop valves, use a plug as disc. The sealing face is plane or cone. The disc makes rectilinear motion along with the center line of fluid. According to motion form of stem,...
Classification and Selection of Check Valves
Check valves, also called as one-way valves or non-return valves, are used to stop media from flowing backward. Bottom valves in water shut of water pump also belong to check valves. Headstock piece depends...
What Are High Pressure Check Valves?
The disc of high pressure check valves is discoid, which rotate with a spindle inside channel of seat. Because of the channel is streamline form. Flow resistance of high pressure check valves is lower...
Classifications of Oil Valves in Common Use Introduction
The followings introduce classification of oil valves in common use. 1. Gate Valves Gate valves also called as paddle valves, are one of commonly used valves. The sealing faces of disc and seat...