In the 1950s, ball valves gradually appeared in the industrial production of western developed countries. And its utilization rate is increasing year by year, and people continue to improve its performance. Nowadays, in China, ball valves are mainly used in pharmaceutical machinery, petroleum refining, water conservancy and chemical industry, electric power, municipal paper, steel and other industries. These industries play a very important role in the national economy. Therefore, ball valves are also indispensable equipment in these industries.
How does the ball valve stand out
In the field of valves, there are many kinds of valves. The reason why ball valves can stand out and are frequently used in various fields is inseparable from their irreplaceable advantages. So, what are the advantages of ball valve?
First of all, the advantage of ball valve that can not be ignored is wear resistance. According to the technicians in the industry, for the valve, wear resistance is an important factor to test the quality of the valve. The sealing ring material of the ball valve is alloy steel surfacing, while the general valve sealing ring is rubber or other metals. These materials have no good wear resistance than the alloy steel surfacing of the ball valve.
"As we all know, the valve is a switch, which needs to be opened and closed. At the same time, the sealing ring will be greatly worn, but this will not happen to the sealing ring of the ball valve." the industry said.
Secondly, the sealing performance of the ball valve is very good. It is understood that the sealing of the ball valve is not ground by machine, but by manual grinding, which can ensure a higher degree of coincidence, so the sealing performance is very reliable.
In addition, the service life of the ball valve is very long. This is also a point that manufacturers pay great attention to relevant production equipment.
"Because it is often used in major production front-line industries, if its service life is not long enough and it needs to be replaced frequently, it will become very troublesome and cause a lot of mistakes."
Sharing of ball valve selection skills
As a kind of opening and closing part with the help of valve stem, the stability of equipment performance is very important. Therefore, some details need to be followed in the selection in order to better meet the actual needs.
Pay attention to size selection. It is understood that the flow resistance of ball valve is generally very small, and the channel and pipeline are almost the same, so it can be used in some areas sensitive to medium working conditions. When choosing this kind of valve, we should pay attention to the choice of size. Different sizes, different weights, and different effects can be achieved.
Reasonable consideration of price. When selecting the valve, in addition to comparing the goods, we should also consider the economy. As long as it can meet the actual demand, we don't have to choose a large size or heavy one.
In addition, fixed ball valves have closed valve cavities. If they are used in low-temperature media or in environments where gasification may occur, valves with relief devices must be selected. If necessary, the ball valve needs to be changed into butterfly valve or stop valve.
The industry pointed out that this valve is generally suitable for pipeline cutting with ball passing requirements. For the selection of such valves, if necessary, they can be selected according to the needs of channel structure, which can ensure to meet the needs of multiple channels and reduce the number of valves as much as possible.
It is worth reminding that the selection of ball valves also needs to pay attention to the selection of brands and prices. It is wise to choose valves with high cost performance.