High Performance Butterfly Valve And Ordinary Butterfly Valve

Many friends have doubts about the purchase of butterfly valves and are entangled in whether to use high-performance butterfly valves. Let me answer them today.

The main reason why users ask this question is still not clear about the difference between high-performance butterfly valves and ordinary butterfly valves, so I will start with the differences between them.

Ordinary butterfly valves are generally low-pressure butterfly valves (<1.6Mpa), and their structural characteristics are that the axis of the butterfly plate is in the center of the flow channel and the sealing belt, and the valve body is lined with rubber. This kind of butterfly valve uses external force to squeeze the butterfly plate and rubber to achieve the necessary sealing specific pressure to cut off the fluid. This kind of seal is called a strong seal in technology, and its defects are also obvious: for example, the specific pressure of the seal is not easy to control, the wear is large, and the life is short. Generally, it needs to be replaced after 2000 times of openings and closings.

The high-performance butterfly valve can be said to just make up for the defects of the ordinary butterfly valve. The center of rotation of the butterfly plate of the high-performance butterfly valve deviates from the axis of the pipeline and the sealing section. In contact with the seal seat. The sealing seat is a flexible sealing structure, which uses the principle of medium sealing to achieve a reliable sealing effect, completely changing the principle of forced sealing of ordinary butterfly valves.

More importantly, the high-performance butterfly valve can be opened and closed frequently for 1 million times, its service life is geometrically higher than that of ordinary butterfly valves, and its working pressure can reach 10Mpa, which is suitable for any medium.

After knowing the difference between ordinary butterfly valves and high-performance butterfly valves, how should we choose when purchasing? This is like in daily life, when we go to the supermarket to buy a toothbrush, there are about a dozen brands of toothbrushes in the toothbrush shopping area, and the prices are different, ranging from two or three yuan to twenty or thirty yuan. They have only one function, which is to brush teeth, and they can also play this role, but some people only buy two or three yuan, some will buy more than ten yuan, and some people only buy the most expensive one.

There are many reasons for this difference, but I will only say a common phenomenon. First of all, everyone has different requirements for toothbrushes, and the price of the toothbrush we choose is different. There is also a difference in the perception of things. For example, some people think that all toothbrushes are the same, whether they are soft bristles or hard bristles, they can adapt to them, so they will choose the cheapest one.

Applying this thinking to purchasing butterfly valves is the same. If your factory has a relatively sufficient budget for purchasing butterfly valves, then you must buy a better butterfly valve, because high-performance butterfly valves are really not expensive. It has a long warranty period, and the third is that it does not need to be replaced frequently, saving trouble and effort.

If the procurement budget is tight, and there is no requirement for the pressure and service life of the butterfly valve, then just buy an ordinary butterfly valve. Otherwise, he can't make money.

Shunlin is a professional industrial valves manufacturer, if you are interested in the products, please contact us.