ForgedSteelLife/SwingCheckValveSize:1/2"to3"Pressure:CLASS800LBtoCLASS1500LBMaterial:A105N,LF2,F11,F22,F5,Design&.ManufactureStandard:API602,A***EB16.34,SocketWeldedDimensionconformtoANSIB16.11;ThreadedEndDimensionconformtoANSIB1.20.1;ButtWeldedconformtoansib16.25Check&.TestStandard:ISO5208,API598(JISB2003),API6D,BS6755)