Main features of high pressure ball valve

The high pressure ball valve has the effect of rotating 90 degrees, the faucet body is a ball and has a circular through hole or channel through its axis. Ball valves are mainly used to block, distribute and change the direction of fluid flow in a pipeline. It can be closed tightly with a small torque by simply turning it 90 degrees. Ball valves are ideal for shut-off and shut-off valves, but recent developments have designed ball valves to control and control flow, such as V-shaped ball valves.
The main features of the high pressure ball valve are compact structure, reliable sealing, simple structure and convenient maintenance. It is suitable not only for working fluids, but also for fluids with difficult working conditions such as oxygen, hydrogen peroxide, methane and ethylene. , And widely used in various industries. The ball valve body can be integrated or combined.
Ball valves are divided into floating ball valves, fixed ball valves, orbital ball valves, V-shaped ball valves, three-way ball valves, stainless steel ball valves, forged steel ball valves , ash discharge ball valves and sulfur resistant ball valves. , Three way ball valve, pneumatic ball valve, electric ball valve, nut ball valve, welded ball valve.
According to the shell / body material classification, ball valves can be classified as follows:
1. Metal material valve: carbon steel valve, alloy steel valve, stainless steel valve, cast iron valve, titanium alloy valve, monel valve, copper alloy valve, aluminum alloy valve, aluminum alloy valve lead alloy, etc.
2. Metal valve body liner valve: rubber liner valve, fluorine liner valve, lead drying valve, plastic liner valve, enamelled liner valve, etc.
3. Bulbs in non-metallic material: ceramic valves, glass valves, plastic valves, etc.
Depending on the connection method, it can be divided into threaded ball valves, flanged ball valves and plate ball valves.
There are many domestic manufacturers of ball valves, and most of the connection sizes are not uniform.
GB / T12221-2005 This is a general class based on "Structural length of metal valve".
Most domestic ball valve manufacturers are designed and manufactured according to this standard. However, this standard is not perfect and the specifications are incomplete. The maximum nominal diameter of a floating ball valve is DN1200 and the maximum nominal diameter of a fixed ball valve is DN2000. Based on factory manufactured valve specifications and available information, the minimum nominal diameter for floating ball valves is DN6 and the minimum nominal diameter for fixed ball valves is DN50. As a result of the investigation, the connection sizes of the various manufacturers are not uniform. To unify the standards, users can exchange the same specifications during selection and installation. Make corrections. It is recommended that the design body and the user choose based on Accumulator safety valve the standard and that the ball valve manufacturer designs and manufactures according to the standard.
1. The fluid resistance is small and the full bore ball valve has virtually no flow resistance.
2. Simple structure, small size and light weight.
3. Tight and reliable. There are two sealing surfaces, and the sealing surface material for ball valves is widely used for various plastics and has excellent sealing properties, allowing for a complete seal. It is also widely used in vacuum systems.
4. Easy to use and can be opened and closed quickly. It is convenient for long distance control by simply turning 90 ° from fully open to fully closed.
5. Easy maintenance, simple ball valve structure, generally movable sealing ring, convenient to disassemble and replace.
6. When fully open or fully closed, the sealing surface of the ball and valve seat is isolated from the fluid and does not cause the valve sealing surface to erode as the fluid passes.
7. Wide range of applications, from small to a few millimeters in diameter, large up to a few meters, from high vacuum to high pressure.
8. The ball valve has a cleaning property in the opening and closing process, so it can be used for fluids with floating solid particles.