Beijing ZHH Flow Control System Co., Ltd. Was founded in 1998, is the professional sales enterprise of HT11 series safety valves and special valves designed and manufactured by Beijing Aerospace Petrochemical Technology & Equipment Engineering Corporation. Constantly adhering to the development idea of "people-oriented" and service purpose of "quality is life and credibility is foundation", ZHH is nowadays one of the key supporters of safety valves both at home and abroad, the products of which not only grab larger market shares in China, but also export to Southeast Asia, Africa, the Middle East., North America, South America and so on. ZHH insists on pursuing excellence and innovation as well as rewarding all friends with best products based on highly-qualified management talents, reliable and fast service and friendly communication with customers.

Beijing Aerospace Petrochemical Technology & Equipment Engineering Corporation is the first one that got ISO9000 certificate in the space research system, a member of sourcing market of Sinopec and CNPC as

Well as the "Respecting Contract, Keeping Promise Unit" authorized by Beijing Administration for Industry and Commerce. The National Engineering Research Center for Special Pumps and Valves, with the approval of State Science and Technology Commission, is built relying on the strong technical support of Beijing Aerospace Petrochemical Technology & Equipment Engineering Corporation, which is equipped with complete designing, testing and inspecting functions. Beijing Aerospace Petrochemical Technology & Equipment Engineering Corporation is the only safety valve manufacturer in China with ASME UV certificate.