High pressure ball valve is a valve mainly used to control or cut off the flow of medium in the pipeline, it has the characteristics of high pressure resistance, corrosion resistance, etc., widely used in chemical, electric power, oil, natural gas and other industries. High-pressure ball valves according to the structure can be divided into floating ball valves, fixed ball valves, three-way ball valves and multi-channel ball valves and other types.
Floating ball valve: Floating ball valve, also known as floating ball valve, is a form of structure in which the ball can float freely. It usually has small flow resistance and better sealing performance, and is suitable for the control of high temperature, high pressure and corrosive media. The advantages of floating ball valve are flexible operation and good sealing, but the disadvantage is that it is easy to cause seal failure due to ball drift.
Fixed ball valve: The fixed ball valve is the structural form that fixes the ball inside the ball valve. It is characterized by simple structure, convenient operation, and has good sealing performance and pressure resistance. The fixed ball valve is suitable for the control of high temperature, high pressure and strong corrosive media, and is widely used in petroleum, chemical industry, metallurgy and other industries.
Three-way ball valve: A three-way ball valve is a ball valve with three channels, usually used to divert fluid from two pipes to a third pipe, or to divert fluid from one pipe to two pipes. Three-way ball valves usually have two structural forms of T-type and L-type, which are suitable for shunt, confluence and mixed flow conditions. It has the advantages of small size, compact structure and flexible operation.
Multi-channel ball valve: A multi-channel ball valve is a ball valve with multiple channels, usually with four or more channels, used to divert fluid from multiple pipes to other pipes. Multi-channel ball valves usually adopt parallel or combined with parallel T-shaped structure, which is suitable for flow switching and distribution of multi-pipeline systems. The multi-channel ball valve has the characteristics of small size, compact structure and diverse functions.
High-pressure ball valves can be divided into flange connections, threaded connections and welded connections according to the connection method.
Flanged ball valve: Flanged ball valve is a ball valve connected to the pipeline through the flange, usually by clamping flange or butt welded flange connection. Flanged ball valves are suitable for high pressure, high temperature and large diameter piping systems.
Threaded ball valve: Threaded ball valve is a ball valve connected to the pipeline through the thread, usually using internal or external thread connection. Screw connection ball valve is suitable for medium and low pressure and small diameter pipe system, easy installation, suitable for use in small space.
Welded ball valve: Welded ball valve is a ball valve that is connected to the pipeline by welding, usually by butt welding connection. Welded ball valve is suitable for high pressure, high temperature and high sealing requirements of the pipeline system, solid connection, not easy to leak.
In addition, high pressure ball valves can also be divided into rotary high pressure ball valves and friction high pressure ball valves according to the relative motion form. The ball of the rotary high pressure ball valve realizes the switching operation by rotating, and the friction high pressure ball valve realizes the switching operation by the friction between the ball and the sealing surface.
In summary, there are many kinds of high-pressure ball valves, which are suitable for different working conditions and pipeline systems according to the structural form, connection mode and relative motion form. When selecting a high-pressure ball valve, it is necessary to make a reasonable choice according to the specific requirements and environmental conditions to ensure its normal operation and safety and reliability.
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