Check category
Ball valve
- Categories:Industry Knowledge
- Author:
- Origin:
- Time of issue:2021-06-10 16:20
- Views:
(Summary description)The first feature of the ball valve; wear-resistant; because the valve core of the hard-sealed ball valve is alloy steel spray welding
Ball valve
(Summary description)The first feature of the ball valve; wear-resistant; because the valve core of the hard-sealed ball valve is alloy steel spray welding
- Categories:Industry Knowledge
- Author:
- Origin:
- Time of issue:2021-06-10 16:20
- Views:
Information
Features of ball valve
One; wear-resistant; because the valve core of the hard-sealed ball valve is spray-welded alloy steel,
Three-piece ball valve
Three-piece ball valve
The sealing ring is made of alloy steel surfacing, so the hard-sealed ball valve will not produce too much wear when it is switched on and off. (Its hardness coefficient is 65-70):
2. The sealing performance is good; because the sealing of the hard-sealed ball valve is manually ground, it can not be used until the valve core and the sealing ring are completely matched. Therefore, its sealing performance is reliable.
3. The switch is light; since the bottom of the sealing ring of the hard-sealed ball valve adopts a spring to make the sealing ring and the valve core tightly hug together, the switch is very light when the external force exceeds the pre-tightening force of the spring.
Four; long service life: it has been widely used in petroleum, chemical, power generation, papermaking, atomic energy, aviation, rockets and other departments, as well as people's daily life.
The pneumatic ball valve has a compact structure, reliable sealing, simple structure and convenient maintenance. The sealing surface and the spherical surface are often in a closed state, which is not easy to be eroded by the medium. It is easy to operate and maintain. It is suitable for general working media such as water, solvent, acid and natural gas. It is used to cut off or connect the medium in the pipeline, and can also be used for fluid adjustment and control.
Compared with other valve types, the pneumatic ball valve has angular stroke output torque, quick opening, stable and reliable, wide application, and some of the following advantages.
1. The thrust bearing reduces the friction moment of the valve stem, which can make the valve stem operate smoothly and flexibly for a long time.
2. Anti-static function: a spring is set between the ball, valve stem, and valve body, which can lead out the static electricity generated during the switching process.
3. Since materials such as polytetrafluoroethylene have good self-lubricating properties, the friction loss with the ball is small, so the service life of the pneumatic ball valve is long.
4. Small fluid resistance: Pneumatic ball valves have the smallest fluid resistance among all valve categories. Even the reduced diameter pneumatic ball valves have relatively small fluid resistance.
5. Reliable valve stem sealing: Since the valve stem is only used for imitating rotation without lifting movement, the packing seal of the valve stem is not easy to be damaged, and the sealing ability increases with the increase of the pressure of the medium.
6. Good sealing performance of the valve seat: The sealing ring made of elastic materials such as polytetrafluoroethylene has a structure that is easy to seal, and the valve sealing capacity of the pneumatic ball valve increases with the increase of the medium pressure.
Advantages of ball valves
1. The fluid resistance is small, and the full-bore ball valve basically has no flow resistance.
2. Simple structure, small size and light weight.
3. Close and reliable. It has two sealing surfaces, and the sealing surface materials of the ball valve are widely used in various plastics, which have good sealing performance and can achieve complete sealing. It has also been widely used in vacuum systems.
4. Easy to operate, fast opening and closing,
High performance ball valve
High performance ball valve
It only needs to rotate 90° from fully open to fully closed, which is convenient for remote control.
5. The maintenance is convenient, the structure of the ball valve is simple, the sealing ring is generally movable, and it is convenient to disassemble and replace.
6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium will not cause erosion of the valve sealing surface when the medium passes.
7. It has a wide range of applications, with a diameter ranging from a few millimeters to a few meters, and can be applied from high vacuum to high pressure.
8. Since the ball valve has wiping properties during opening and closing, it can be used in media with suspended solid particles.
The processing precision is high, the cost is expensive, and it is not suitable for use in high temperature. If there are impurities in the pipeline, it is easy to be blocked by the impurities, causing the valve to fail to open.
Scan the QR code to read on your phone
WRITE A MESSAGE TO US
客户留言
Description:
4000050419
Messages 
©2021 Liaoyang Feedwater And Drainage Equipment Valve Co., Ltd. 辽ICP备19015536号 Powered by 300.cn ShenYang