High-pressure ball valve in the GB/T21465-2008 “valve term” is defined as: opening and closing parts (ball) driven by the stem and the axis around the stem for rotation of the valve.
Advent of high-pressure valve 50 years in the 20th century, with the rapid development of science and technology, production technology and continuous improvement of product structure, in a short period of 40 years, has quickly become one of the main valve. In Western countries, industrialized countries, the use of high-pressure valve 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 and steel industries in the national economy plays a decisive role.
High pressure ball valve is mainly used for cut off or connected to the line of medium, can be used for fluid regulation and control, which seal V-ball V-ball core and its carbide surfacing between the metal seat a 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. This type valve in the pipe should normally be installed horizontally.

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