Certificate:DNV ISO9001 ,API, AZ,CE Materials:PTFE,Rubber Supplier of CNOOC,SINOPEC,CNPC, ... -25MPa Class 150-1500Suitable temperature-196-550°CDesign reference GB,API,ASME Face to face Flange connection/Welded connection Ball valve ... ModelQ47FCertificateDNV ISO9001:2000, CE ,API,LRQA,TSSuitable medium General type :Water,Oil and natural gasAntisulphur ...