The metal butterfly valve as the relevant mechanical system about the dynamic source and related area control facilities are indispensable, its use of metal alloy material means that it has a high application rate of components as a necessary stability and durability characteristics.Indeed the fact also proved that many times the performance of the metal butterfly valve is more reliable, and the contemporary market best-selling metal butterfly valve brand products have been more people's favor.This paper needs to analyze the metal butterfly valve quality is so reliable what is the reason: 1. Material selection.The metal butterfly valve mentioned before is made of professional alloy metal materials, so it is clear that the quality of the metal butterfly valve depends on the spectrum is because of its material selection is very particular.And big brand metal butterfly valve brand owners of the choice of material cooperation channel is also a very high standard. 2. The technology is mature., of course, have a solid foundation of raw materials after mature brands with metal butterfly valve technology further to ensure the quality of the various aspects of their products, on the one hand, the technical team in alcohol has for many years in this field of research and development and manufacturing experience, on the other hand, the modern technical environment and the manufacturing technology level also made a crucial contribution of the ascent of the whole. 3. Rigorous quality supervision.On the other hand of course the quality of the metal butterfly valve product brand owners in the quality supervision will not be sloppy, it has a set of perfect and rigorous quality supervision system and in every link of the production of strict implementation.It can be said that this is also the production of the metal butterfly valve in all aspects of the compliance rate is so high. In summary, is the moment we are very concerned about such high levels of metal butterfly valve product quality, main factor is the product made by using metal alloy material has very high quality, on the basis of this metal butterfly valve brand manufacturers to master the technology and manufacturing process has reached a very high water, add in the product manufacturing quality regulation, formulate strict standards were also guarantee the quality of its products quality.