What are the characteristics of ball valve widely used
Release time:
2024-10-22 16:19
伟拓 伟拓流体设备 WATO Wuhan Weituo Fluid Control Equipment Co., Ltd
Ball valve is a new type of valve in the 1950 s. In a short period of more than 30 years, it is one of the valve varieties that have developed rapidly in the past ten years. It is mainly used to cut off, distribute and change the flow direction of the medium on the pipeline. The ball valve designed as a V-shaped opening also has a good flow adjustment function. Ball valve only need to rotate 90 degrees of operation and a small torque can be closed tightly. Completely equal body cavity for the medium to provide a small resistance, straight-through flow. The ball valve is not only simple in structure, good in sealing performance, but also small in size, light in weight, low in material consumption, small in installation size, small in driving torque, simple in operation, easy to realize rapid opening and closing, easy to operate and maintenance, suitable for general working media such as water, solvent, acid and natural gas, but also suitable for media with poor working conditions, such as oxygen, hydrogen peroxide, methane and ethylene. The ball valve body can be integral or combined.
Ball valve features:
1. The ball valve has low fluid resistance and low flow resistance (actually zero)
2. The ball valve opening and closing switch is quick and convenient.
3. The ball valve has good sealing performance.
4. The ball valve has a long service life.
5. The high reliability of the ball valve is mainly due:
The ball and the valve seat a pair of sealing will not happen to scratch, rapid wear and other failures, in the work will not be stuck (in the absence of lubricant), it can be reliably applied with corrosive media and low boiling point liquid.;
The built-in valve stem structure eliminates the potential accident that the valve stem may fly out due to the loosening of the packing gland under the action of fluid pressure;
The use of anti-static, fire-resistant structure of the ball valve, suitable for transporting oil, natural gas, gas pipeline.
6. The smooth passage in the valve body is more suitable for conveying viscous fluid. slurry, and solid particles.
Because it will not get stuck at work (when there is no lubricant), it can be reliably applied to corrosive media and low boiling point liquids.
8. The ball type closing part can be automatically positioned in position and can withstand the high pressure difference when closing.
9, in a large pressure and temperature range, can achieve complete two-way sealing.
10. When fully open and fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, so the medium passing through the valve at high speed will not cause erosion of the sealing surface.
11, compact structure, light weight, it can be considered a reasonable valve structure for low temperature medium system.
2022-12-19