Frictionless sealing structure, upon opening the valve the ball will be detached from the seat and then rotating. As there is no scraping between seal face this valve is quite durable.
Upon closing the valve the ball is kept a certain space from the seat during the process of rotating. With the rotation of the ball, flow rate will be reduced and flow velocity will be increased to make the seal face clean.
Small volume \compact structure\easy operation and installation \in-line repair accessible and long service life.
With electric or pneumatic device\remote control may be effect to deal with dangerous working conditions thus to ensure personal safety.
Shanghai Honsheng Special Valve Manufacture Co., Ltd., was reformed and rebuilt on the former Shanghai Haigong Valve Industrial Factory which was founded in 1981. In 1997, in order to be in term of modern cooperation, the main departments of the former Shanghai Haigong Valve Industrial Factory, which include technology, production and management, chose the most skilled workers among their former employes after they all had been forced to come off the sentry duty to form the personnel of the company today. At present our company has 62 employees, among whom there are 16 engineers. Our comapany aims to invent and renovateits products so as to cater for the demands of the market and fill up the vacancy of the home market as well. It also abandoned the comprehensive and completed but non-specific production mode and concentrated on producting and developing big caliber and high pressure ball valves. Accordingly, we have won high praise from the customers, and have got satisfied beneficialresult. Besides, The related products of our company have been confirmed and agreed by experts in this line.
Our company achieveed ISO9001 authentication in September 2000. And in 2004 our company acquireed the manufacture license of special equipment. For many years our products has won certain share in home market.
