Turnnion Mounted Ball Valves 20″*16″ Class 600 with Pneumatic actuator Material:LF3 Nominal Pressure:600# Nominal Diameter:20″/16″ End Sealing:RF Face To Face:ASME B16.10 Working Temp.:-108℃~425℃ End Connection:Raise Face(RF) NACE:NACE 0175 PS:We can manufacture valves as customers’ requirements.