ZhengFeng mainly produces water system valves, including water butterfly valves, is China's quality butterfly valve manufacturers.Building companies and water supply companies will install the limited space, most of the size of the shutoff valves used to clip butterfly valves and flange butterfly valves because of the small size, easy to install.But although the installation space is very small products, the material requirements on parts are the same strict. The butterfly valve used for water is composed of rubber sealing and metal sealing butterfly valve. The most important part of soft sealing butterfly valve is its seat - rubber cover.On the market, a lot of manufacturer use regenerative rubber with inferior fill so the price of butterfly valve drops very low, so what disadvantage does regenerative rubber have? First, the recycled rubber is produced by the used rubber secondary reprocessing. Under the long-term use condition, the recycled rubber will not naturally crack because of the toughness and integrity of the original rubber, or it will break because of the impact of debris in the pipeline, thus causing the seal failure.Second, because the recycled rubber has been used for the first time, the condition of drinking water cannot be reached even after the rubber formula is added, which will cause secondary pollution in use. In addition, ZhengFeng selects copper which can control the quality of the material on the stem sleeve material. Plastic is mostly used in the market. Compared with the wear resistance of stainless steel stem, the wear resistance of plastic and stainless steel is much better. ZhengFeng will pay attention to the product details, and improve our products on the aspects that may cause impacts, so as to guarantee that customers do not have to worry about the maintenance cost and communication cost in the long-term use.