Overview Of Lined Ball Valve's Applicable Working Conditions And Applications

The Lined Ball Valve, a new type of valve introduced in the 1950s, has become one of the fastest-growing valve types in the past decade or so. Ball valves are particularly widely used in industrialized countries such as the United States, Germany, Japan, France, Italy, Spain, and the United Kingdom. Their variety and quantity continue to expand, and they are developing towards high-temperature, high-pressure, large-diameter, high-sealing properties, long life, excellent regulating performance, and multifunctionality. Their reliability and other performance indicators have reached high levels, and they have partially replaced gate valves, globe valves, and throttle valves. They are widely used in aerospace, petrochemicals, long-distance pipelines, light industry, food processing, and construction, among other applications. This is because ball valves offer many distinct advantages over other valve types.

A ball valve uses a sphere with a circular through-hole as its opening and closing member, which rotates with the valve stem to achieve opening and closing. Evolved from the plug valve, the ball valve is also known as a spherical plug valve. The opening and closing member of a ball valve is a sphere that rotates 90 degrees around the axis of the valve stem to achieve opening and closing. Ball valves are primarily used in pipelines to cut off, distribute, and redirect media flow. Ball valves designed with a V-shaped opening also offer excellent flow regulation capabilities. Ball valves require only a 90-degree rotation and minimal torque to achieve a tight shutoff. The perfectly flat inner cavity of the valve body provides a low-resistance, straight-through flow path for the media. Ball valves not only offer a simple structure and excellent sealing performance, but also boast a compact size, light weight, minimal material consumption, and small installation dimensions within a given nominal diameter range. They also feature low actuation torque, simple operation, rapid opening and closing, and ease of operation and maintenance. They are suitable for general working media such as water, solvents, acids, and natural gas, as well as for media subject to harsh operating conditions, such as oxygen, hydrogen peroxide, methane, and ethylene. Ball valve bodies can be either integral or modular.