Ball valve came in the 20th century, 50 years, with the rapid development of science and technology, production technology and continuous improvement of product mix in just 40 years, has quickly become one of the main valve. In Western countries, industrialized countries, the use of ball is on the increase year by year in China, the ball is widely used in petroleum refining, long-distance pipelines, chemical, paper, pharmaceutical, water, electricity, municipal, iron and steel industry in the national economy plays a decisive role.

Ball valve is mainly used for cut off or turn the line of medium, can be used for fluid regulation and control, which seal V-ball V-ball core and the cladding alloy is between the electronic cigarette seat strong shear force, especially for fibrous, small solid particles and other media material. The multi-way valve in the pipe can be flexibly controlled, not only the confluence of media, diversion, and flow switch, but also to turn off any channel leaving the other two channels connected.

It has rotated 90 degrees ball valve action, cock body, the sphere, there are circular holes or channels through its axis. Valve in the pipeline is mainly used to do cut off the flow of media distribution and change direction, it only needs to rotate 90 degrees in the operation and a small torque can be closed tightly. The most suitable valve do switch, display stand, but recent development has been designed to make it a throttle valve and flow control purposes, such as V-type ball valve.

Main features of valve is its own compact, reliable seal, simple structure, easy maintenance, regular spherical surface and seal in the closed state, the media can not easily be eroded, easy operation and maintenance for water, solvents, acids, and natural gas general working medium, but also for poor working conditions of media, such as oxygen, solar hot water heater, methane and ethylene, in the various sectors has been widely used. Ball valve can be integral, it can be modular.

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