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12-
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Our associated company: Henan Kaifeng High Pressure Valve Co.,Ltd ,which was set up in 1959 and has finished the transformation of ownership system at the end of 2003.Our company has become a key enterprise which mainly produces and sells the high and medium press valve during the 50-year’s development.Our company is an enterprise which specialized in Development and Design of Product,Making of Model,Product of casting and forging ,Machine Work,Assbembly and Test.The China Valve Technology ,Inc.,whose main part in Henan Kaifeng High Pressure Valve Co.,Ltd came into the U.S.stock market successfully in Dec.2007 and has received approval to list its common stock on NASDAQ Global Select Market.The Company will trade on NASDAQ under the ticker symbol CVVT.On Dec 23,2009,we held the ceremony for ringing the brass bell in NASDAQ headquarters.We believe our company will step into a completely new stage on the basis of our effort.. Hu Jintao who is president of the People’s Republic of China and General Secretary of the Communist Party of China (CPC) Central Committee and Jiang Zemin who is former president of the People’s Republic of China and General Secretary of the Communist Party of China (CPC) Central Committee and many leader from National Ministry,Province Government and Local Government has inspected the works of our company for many times. • Full bore design eliminates efficiently pressure drop and vortex, eliminates washing by solids in fluid. • Mental-to-mental seal is used between bonnet and body, gate and seat, body and seat. • The surface of gate and seat is weld overlay with hard alloy, which has feature of corrosion resistance and washing resistance. • The bonnet and stem designed with back seal, can replace stem sealing under pressure. • One side of bonnet is designed with sealant injection in order to supply sealant and improve seal and lubrication performance of gate and seat. • Can complete with different pneumatic (hydraulic) actuator upon user’s requirements. • Working Pressure: 2000PSI～20000PSI • Nominal Bore: 1.13/16"～9" (46mm～230mm) • Working Medium: oil、natural gas、mud and gas containing H2S、CO2 • Working Temperature: -46°C～121°C（Class LU） • Material Class: AA、BB、CC、DD、EE、FF、HH • Specification level: PSL1-4 • Performance Requirement: PR1-2
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