Description
The Operated Cast Steel Industrial Valve Ball Valve is a sphere with a circular channel, which rotates around an axis perpendicular to the channel. The ball rotates with the valve stem to achieve the purpose of opening and closing the channel. The ball valve only needs to be rotated 90 degrees and a small rotational torque to close tightly. According to the needs of working conditions, different driving devices can be assembled to form ball valves with various control methods, such as electric ball valves, pneumatic ball valves, hydraulic ball valves, etc. When the ball valve rotates 90 degrees, all spherical surfaces should be present at the inlet and outlet. Thereby closing the valve and cutting off the flow of the medium.
Advantages
Corrosion resistant
Made of 304/316 stainless steel, combined with nickel and chromium elements, corrosion-resistant;
Not easy to rust
Made of 304/316 stainless steel, strong oxidation resistance and not easy to rust
Strong versatility
T-type/L-type tee, the threads are common with ordinary pipes, easy to replace and install;
Good sealing performance
PTFE PTFE valve seat seal has good sealing performance and temperature resistance up to 120°C;
Exquisite appearance
The natural color of stainless steel, exquisite structure, exquisite and beautiful appearance.
Overview
The ball valve evolved from a cock. Its opening and closing part is a sphere. The ball is used to rotate 90° around the axis of the valve stem to open and close. Ball valves are mainly used on pipelines to cut off, distribute and change the flow direction of media. Ball valves designed with V-shaped openings also have good flow regulation functions. The ball valve not only has a simple structure but also has good sealing performance. Moreover, within a certain nominal size range, it is small in size, light in weight, consumes less material, has a small installation size, has a small driving torque, is easy to operate, and can easily open and close quickly. It is one of the valve types that has developed rapidly in the past ten years. . Especially in industrially developed countries such as the United States, Japan, Germany, France, Italy, Spain, and the United Kingdom, ball valves are widely used, and the varieties and quantities used continue to expand, and are moving towards high temperature, high pressure, large diameter, high sealing, and long-term use. With its long life, excellent regulating performance and multi-function in one valve, its reliability and other performance indicators have reached a high level, and it has partially replaced gate valves, globe valves and throttle valves. With the technological advancement of ball valves, they will be more widely used in the foreseeable short term, especially in oil and gas pipelines, refinery cracking units and the nuclear industry. In addition, ball valves will also become one of the leading valve types in large and medium diameter, medium and low pressure fields in other industries. The advantages of ball valves are:
1) Has the lowest flow resistance (actually only equivalent to a section of circular pipe of the same nominal size).
2) Because it will not get stuck during operation (when there is no lubricant), it can be reliably used in corrosive media and low-boiling point liquids.
3) Complete sealing can be achieved within a larger pressure and temperature range.
4) Quick opening and closing can be achieved. The opening and closing time of some structures is only 0.05-0.1s to ensure that it can be used in the automation system of the test bench. When the valve is opened and closed quickly, the operation will be impact-free.
5) The spherical closing piece can be automatically positioned at the boundary position.
