Zhejiang Wenzhou Chisun Valve Manufacturing Co., Ltd. is a specialized manufacturer of industrial process control valves and related auto-control equipment, including a wide variety of electric ,pneumatic and manual V-type ball valves , O-type ball valves and knife gate valves etc., over 90 series and 800 specifications and types .Widely used in the automated control system in the industries of papermaking, chemical fiber, petrochemical, foodstuff, metallurgy ,electric power, pharmaceutical , sewage treatment gate have exceeded American MSS-SP 81 leakage standard in sealing test pressure, and have been granted six national patents , which takes an advanced level in the world . The company has been honored Enterprise with High and New Technology in Zhejiang , Enterprise with Recognition in Honoring Contracts and Credit in Wenzhou , Faithful Enterprise in Longwan District , and ISO9001-2000 Certificate . To date, our control valves have been not only extensively used in the large-scale papermaking projects at home, but also exported to USA, Australia, Indonesia, Spain, Taiwan, Italy and etc..