Douson Valve Introduction
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Suzhou Douson Valve Co., Ltd is an integrated valve manufacturer of research, design, production, sales and services, in the fields of petroleum, chemical, metallurgy, coal, electricity and so on .
 Located in beautiful industrial park of Suzhou and with a cover of 20,000 square meters, the company has such advanced equipment as shielded arc welding),machining, valve assembly and hydraulic test, automatic washing machines, paint line, together with modern testing and inspection facilities. There are, in total, 270 employees, while 20 are product R&D staff and over 50 technical staff.
Our products:Ball Valve, Check Valve, Choke Valve, Butterfly Valve, Control Valve, High-temperature and pressure Valve and so on. They are widely used in fields of petroleum, chemical, metallurgy, power and power station, adopting standards of API, ANSI, ASME, MSS, BS, DIN and GB. Material includes WCB, WC6, WC8, WC9, LGB, LCC, CF8(304), CF8M(316), CN7M(20# Alloy), 4A(F51), A105, LF2, 1020, 1040, 410, 4130, 4140, 17-4PH,Inconel, Titanium, Monel, etc.
The parent company (Suzhou Douson Drilling & Production Equipment Co., Ltd) was established in 2001, with multiple branch sales agencies in and outside China. Its products are widely sold to many countries and regions like American, Spain, Britain, Australia, Canada, Iran, Kazakhstan, Singapore etc. So far, Douson has obtained multiple national patents and awards for research and development of science; also, it has obtained certificates for API 6D、API 6A、API 16A、API 607、API 6FD. First class inspection machine and equipment, check ability, plus perfect quality assurance system, well guarantee the outstanding quality of products. Douson has been authenticated by international ISO9001 quality system, European CE quality system and China Special equipment manufacturing TS certification. Also, it has gained first class access license of CNPC( high pressure valve wellhead and Christmas tree equipment), 2-class access license of CNOOC, and has been certificated as a nuclear cooperation supplie