What Should be Paid Attention to When Ball Valve is Applied in Pipeline?

The two main reasons of ball valve damage are: first, the valve switch is not in place; Second, the sealing surface is damaged.

There are several reasons that affect the ball valve switch not in place
1) Due to the structure of the ball valve, the materials are easy to accumulate, and the materials are easy to accumulate in the valve cavity, bearing cavity, spring and valve cavity. Due to the structure of the ball valve, the materials are difficult to deal with, and the purging will greatly affect the coating of the ball.
2) Due to frequent opening and closing, the internal parts of the ball valve change and the mechanical properties change.
3) The output of the cylinder is too small to produce enough torque.
4) In the lock bucket valve, the longest phenomenon of ball valve is pressure holding and jam, which is determined by the lock bucket valve in its process position, and the structure of ball valve can not be avoided.
5) The phenomenon of metal bonding is mainly due to the mismatching of the manufacturers in the selection of hard coatings.
6) Scraper failure, mainly due to the manufacturer in the selection of scraper material did not choose the right material, so that its rigidity is not enough, easy to deformation, and the spring selection, spring strength is not enough.
7) Due to the change of high pressure in the lock bucket, the filler is easy to be damaged.
8) Heat expansion and cold contraction
There are several reasons for the damage of ball valve sealing surface
1) Metal bonding, metal bonding phenomenon in hard seal ball valve damage can be said to be a great hero.
2) Corrosion.
3) Creep.
4) Wear and tear.
5) Erosion, due to the ball valve in the process of use, corrosion, creep, friction is continuous, and the erosion of the ball valve, friction is always a part of friction, small damage leads to the aggravation of erosion, eventually make the ball valve completely scrapped.