The butterfly valve
is simple in structure. Although it is small, it has all the parts and components. Other types of valves should pay attention to quality. Similar to rubber of butterfly valve
set, because for wafer butterfly relies mainly on the rubber seal, there are a lot of shoddy rubber to cover on the market, they used reclaimed rubber to replace the original rubber, although cheaper a lot, but in the use of the site switch a few times, can cause gum set on the surface of the rubber strip, because of the reclaimed rubber bonding degree and the ratio of raw rubber to the adhesiveness of completely is not a class.
In addition, recycled rubber is literally easy to understand, is used in other places of rubber re-processing use, because so, recycled rubber can easily produce secondary pollution, water pollution. In addition, in the friction part of stainless steel valve stem and shaft sleeve, many manufacturers will use plastic, although the physical properties of plastic and our copper shaft sleeve is not different, plastic secondary pollution and risk also exist. Therefore, although the product is simple and easy, we still need to choose professional butterfly valve manufacturers who can provide the material guarantee to guarantee the quality.