Xi`an YongHua Group Co.,Ltd. Is one of the major specialists in the design and manufacture of mechanical seal.We are engaged in sealing technology with mechanical seals and seal support systems according to API plans which are applied primarily in circulating pumps, vessel, mixer, high speed pump and other equipment with rotating shafts.The products of Xi`an YongHua range from low temperature to high temperature, from single and double side seals to tandem seals. The adoption of special materials and imported materials at key parts eliminates the effect of high abrasive and high abrasive and high corrosive liquid on the seal life.Have obtained authorization of ISO9002 Quality Assurance System in 1998 and as well as the ISO9001 Quality Management System in 2004, Xi`an YongHua operates in the full R & D system and CAD network with extensive testing including field test of new designs. And as an appointed supplier for China Petrochemical Corp., China Petroleum Corp. and Equipment Corporation of Chemical Industrial Bureau, our company has owned so high reputation in the petrochemical system in China that the coverage rate of bellows mechanical seals has reached a very higher rates of domestic market. Now the mechanical seals produced by Xi`an YongHua are widely used in different fields such as Nuclear power station, petrochemical, chemical, refinery, paper, chemical fiber industry, etc.
