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PN nominal pressure and Class pounds ( Lb )
Nominal pressure (PN), Class American standard pound level ( Lb ), is a way of expressing pressure, the difference is that the pressure they represent corresponds to a different reference temperature, the PN European system refers to the pressure at 120 ° C The corresponding pressure, while CLass...Read more -
What Is The Difference Between Gate Valve And Butterfly Valve?
Gate valves and butterfly valves are two very commonly used valves. They are very different in terms of their own structures, usage methods, and adaptability to working conditions. This article w...Read more -
Analysis of the four main causes of leakage of ball valves and measures to deal with them
Through the analysis of the structural principle of the fixed pipeline ball valve, found that the sealing principle is the same, using the “piston effect” principle, and only the sealing structure is different. Valve in the application of the problem is mainly manifested in different ...Read more -
What problems should we pay attention to in the soft gate valve procurement process？
I often encounter customer inquiries as below: "Hi, Beria, I need gate valve, can you quote for us?" Gate valves are our products, and we are very familiar with them. Quotation is definitely no problem, but how can I give him a quotation based on this inquiry? How to quo...Read more -
How to choose between concentric, double eccentric and triple eccentric butterfly valve?
The difference in the structure of the butterfly valve distinguishes four types of butterfly valves, namely: concentric butterfly valve, single eccentric butterfly valve, double eccentric butterfly valve and triple eccentric butterfly valve. What is the concept of this eccentricity? How to decide...Read more -
What Is Water Hammer and How to Fix it?
What is Water Hammer? Water hammer is when there is a sudden power failure or when the valve is closed too fast, due to the inertia of the pressure water flow, a shock wave of water flow is generated, just like a hammer hitting, so it is called water hammer. The force generated by the back and f...Read more -
What are the characteristics of the valve sealing surface material?
The sealing surface of the valve is often corroded, eroded and worn by the medium, so it is a part that is easily damaged on the valve. Such as pneumatic ball valve and electric butterfly valve and other automatic valves, due to frequent and fast opening and closing, their quality and service li...Read more -
Analysis of the Causes of Steam Leakage Caused by Poor Sealing of Steam Valves
Damage to the steam valve seal is the main cause of internal leakage of the valve. There are many reasons for the failure of the valve seal, among which the failure of the sealing pair composed of the valve core and the seat is the main reason. There are many reasons for the damage of valve seali...Read more -
What Are The Connection Methods Of Valves And Pipes ?
Valves are usually connected to pipelines in various ways such as threads, flanges, welding, clamps, and ferrules. So, in the selection of use, how to choose? What are the connection methods of valves and pipes? 1. Threaded connection: Threaded connection is the form in ...Read more
