Double block and bleed ball valve Material:LF2 Nominal Pressure:CLASS 300 Nominal Diameter:1-1/2″*1/2″ End Sealing:SW/NPT Face To Face:ASME B16.10 Working Temp.:-46℃~320℃ Test/Inspection:API598/API6D End Connection:SW/RF NACE:NACE 0175 PS…