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Introduction of several types of gate valves
Introduction of several types of gate valves (1) Wedge type single gate valve The structure is simpler than the elastic gate valve; ② At high temperature, sealing performance is not as good as elastic gate valve or double gate valve; ③ Suitable for high temperature medium which is easy t...Read more -
Knife type gate valve performance and installation
Knife gate valve has the advantages of simple and compact structure, reasonable design, light material saving, reliable sealing, light and flexible operation, small volume, smooth channel, small flow resistance, light weight, easy installation, easy disassembly and so on. It can work normally und...Read more -
Structural characteristics and selection techniques of direct-flow globe valve, angle globe valve and plunger valve
Due to the low friction between the sealing surfaces during the opening and closing process, the shut-off valve is relatively durable and has a small opening height. It is not only suitable for medium and low pressure, but also suitable for high pressure media. Relying on the pressure of the v...Read more -
What are the several types of ball valves ?
As the most widely used valve, the ball valve is also the most type of valve. A variety of types meet the user’s application in different medium occasions, different temperature environments and different process requirements in the actual process. The following introduces the characteri...Read more -
The characteristics of Vertical check valve
Overcoming the spring resistance makes the valve open or close. When the medium pressure at the inlet end is lower than the inlet end, the vertical check valve: due to the pressure of the medium at the inlet end of the pipeline. The spring pushes the valve core to the valve seat to close the ...Read more -
Ball valve installation method
Several common valves used in industrial pipelines, ball valves are the most widely used, whether it is ordinary medium pipelines for water, oil and gas or harsh working conditions containing high-hardness particles, whether it is low temperature, high temperature, or corrosive environment, you ...Read more -
Development and Application of Metal Seal Butterfly Valve
The disadvantage of the rubber seal butterfly valve is that when it is used for throttling, cavitation will occur due to improper use, causing the rubber seat to peel off and damage. For this reason, metal-sealed butterfly valves have been developed internationally, and the cavitation zone has...Read more -
Butterfly valve test and installation troubleshooting methods
Butterfly valve test and adjustment: 1. The butterfly valve is a manual, pneumatic, hydraulic, and electric component that has been strictly debugged before leaving the factory. When rechecking the sealing performance, the user should evenly fix both sides of the inlet and outlet, close the b...Read more -
Performance and working principle of triple eccentric metal hard seal butterfly valve
The working principle of the triple eccentric metal hard seal butterfly valve: For triple eccentric metal sealing butterfly valves, in addition to the two eccentricity of the valve stem and the valve plate, the sealing surface of the valve plate and the valve seat is in the shape of an obliqu...Read more -
The installation and maintenance of globe valves
Globe valve in operation, all kinds of valve parts should be complete and intact. Bolts on the flange and bracket are indispensable. Thread should be intact and no loosening is allowed. Fastening nut on handwheel, if found loose should be tightened in time, so as not to wear the connection or l...Read more -
Globe valve advantages
(1) the structure of the globe valve is simpler than the gate valve, and the manufacture and maintenance are more convenient. (2) the sealing surface is not easy to wear and scratch, good sealing, open and close between the valve disc and the valve body sealing surface without relative sliding, ...Read more -
Comparison of the advantages and disadvantages of electric valves and pneumatic valves, the difference between electric valves and pneumatic valves
Electric valve Electric valve actuators are mainly used in power plants or nuclear power plants, because the high-pressure water system requires a smooth, stable and slow process. The main advantages of electric actuators are high stability and constant thrust that users can apply. The maximum t...Read more
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