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gas pipe valve: structure:shutoff material:brass 1.Factory Background: Shanghai General Gas Valve Factory in China,is a leading professional manufacturerproviding a full range of gas valve productions.Founded in 1958,it is one of the oldest and largest manufacturers of gas valve productions in China,and has been rated "level 2 enterprise" by Chinese government.It provides diversified production series,such as the gas valve/cylinder series(high pressure,middle and low pressure) for natural gas,liquefied petroleum gas,oxygen,hydrogen,freon,high purity gas,rare gas and special gas,etc;the pipe valve series;the collecting bar series;the gas cylinder inject device series;the gas decompressor series;the gas booster series for industrial use and for civil use;brass ball valve series;oil burner series. 2.Details ofmedical valveseries: TypeStructureMedium AvailableWP MPa DN mm Inlet threadOutlet threadQJT30-12thru type shutoff valveO2,H2,N2,Air≤312Female thread G1/2Female thread G1/2QJT150-4thru type shutoff valveO2,H2,N2,Air154Female thread G1/2G5/8QJT200-8thru type shutoff valveO2,H2,N2,Air208Female thread M33×2Female thread M33×2QJT200-10thru type shutoff valveO2,H2,N2,Air2010Female thread M33×2Female thread M33×2QJT200-15thru type shutoffvalveO2,H2,N2,Air2015Female thread G3/4Female thread G3/4QJT200-20thru type shutoff valveO2,H2,N2,Air2020D32 SolderD32 SolderQJT200-25thru type shutoff valveO2,H2,N2,Air2025D38 SolderD38 SolderQJG150-4right angle type shutoff valveO2,H2,N2,Air154G1/2G3/4QJG200-8right angle type shutoff valve O2,H2,N2,Air208G1/2G3/4QJG200-10right angle type shutoff valveO2,H2,N2,Air2010G3/4G3/4QF-51Aright angle type shutoff valveO2,H2,N2,Air154M18×1.5M18×1.5GJ8-1acetylene pipe shutoff valveC2H22.55M22×1.5M16×1.5QD200-6gas pipeline check valveO2,H2,N2,Air206G5/8W21.8×1/14-QD200-10thru type non-return valveO2,H2,N2,Air2010Female thread G3/4Female thread G3/4QD200-15thru type non-return valveO2,H2,N2,Air2015Female thread G3/4 FlangeFemale thread G3/4 FlangeQD200-20thru type non-return valveO2,H2,N2,Air2020D32 SolderD32 SolderQJT200-15Athru type shutoff valve O2,H2,N2,Air2015Female thread G3/4Female thread G3/4 3.Certificates Since its beginning of TQC(total quality control) implement in 1984,Shanghai General Gas Valve Factory has built a perfect quality management system successfully,and has been granted the production qualification certificates and the production licenses successfully from Shanghai Labor and Social Security Bureau,Shanghai Commodity Inspection Bureau,Ministry of Construction and Ship Inspection Bureau and has acquired ISO 9001 qualification certificates.It has the ability of designing and developing the special technical equipment for production of special valves by its highdeveloped CAD technology and information processing net and acquired Safety Certificate for Pressure pipe Component at the first issue in China(No.GYZA0116). The pictures of the certificates are as follows: ISO Certificate