果冻久久尤物

Forged steel welded high pressure ball valve Q61N

Three-piece butt-welded ball valve is a closed ball is a sphere, the ball around the centerline of the body for rotation to open, close a valve. Ball valve in the pipeline is mainly used to do cutting, distribution and change the direction of flow of media. Three-piece ball valve is a new type of valve is widely used in recent years.

First, the three-piece welded ball valve has the following advantages:

1. The fluid resistance is small, the resistance coefficient and the same length of the pipe section equal.

2. Simple structure, small size, light weight.

3. Tight and reliable, the ball valve sealing surface material widely used plastic, sealing, and in the vacuum system has also been widely used.

4. Easy to operate, open and close quickly, from full open to fully closed as long as the rotation 90 °, easy remote control.

5. Easy maintenance, simple ball valve, seals are generally activities, the removal replacement is more convenient.

6. In the fully open or fully closed, the ball and seat sealing surface and medium isolation, the media through, it will not cause corrosion of the valve sealing surface.

7. Wide range of applications, from small to a few millimeters in diameter, large meters, from high vacuum to high pressure can be applied.

Second, the three-piece ball valve features and use The ball is mainly used to cut off or connected to the pipeline in the media, can also be used for the regulation and control of fluids, compared with other valves, has the following advantages.

1, the fluid resistance is small, the ball valve is the smallest of all fluid resistance in a class, even the reduced diameter ball valve, the fluid resistance is quite small.

2, stem thrust bearings reduce friction torque, smooth and flexible long-term operation of the valve stem.

3, the valve seat sealing performance, the use of PTFE and other elastic materials made of seals, the structure is easy to seal, and the ball valve sealing capacity increases with the media pressure increases.

4, the stem seal is reliable, because the stem only for the imitation of the rotation movement without lifting movements, the valve stem packing seal is not easy to damage, and the sealing capacity increases with the media pressure increases.

5, PTFE and other materials with good self-lubricating, and the ball friction loss is small, so the ball valve long life.

6, the lower stem and stem stem to prevent the stem protrusion stem, such as fire stem seal damage caused by convex and the valve body can form a metal contact to ensure the stem seal.

7, anti-static function: a spring between the ball, valve body, static electricity switching process produces exported.