Currently, the domestic valve industry research and development capabilities are still weak, the basic method to stay on experience in design, product development can only be digested and absorbed some foreign reference design information and samples of new products in the true sense of self-development work rarely. The reason is the lack of design guidance and high-paying technology means new theory of intervention V-ball vendors, but also the lack of performance parameters, temperature parameters of dynamic simulation tools and test equipment V-ball manufacturers, less investment in basic research is also . Materials V-ball seals there are two types of non-metallic materials and metal materials. Non-metallic materials commonly used in fibrous material, rubber, plastic, and carbon materials. Such material has a low elastic modulus and high Poisson coefficient, the V-type valve supplier in the lower sealing force, that is able to get to play V-ball plastic deformation of possible leakage has good gap filling effect. Therefore, ball valve, packing and gasket to be used in them. Metal seal materials are aluminum, copper and alloy, copper and aluminum used in the manufacture of valve flange gaskets, high temperature alloy is used for valve seat and the sealing surface of the sphere. V-ball manufacturers | Weifang Everbright valve (certified) | V type ball valve Everbright Limited provided by Shandong. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) Shandong Weifang, ball leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Everbright valve leadership with the staff warmly welcome all inquiries negotiations to create a better future for China Everbright valve.