Trunnion Mounted Flanged Ball Valves 1  MD-53,Trunnion Mounted Flanged Ball Valves,Reduced Bore , ANSI Class 150 Size Range : 2"~32" 2  MD-53,Trunnion Mounted Flanged Ball Valves,Reduced Bore , ANSI Class 300 Size Range : 2"~32" 3  MD-53,Trunnion Mounted Flanged Ball Valves,Reduced Bore , ANSI Class 600 Size Range : 2"~32" 4  MD-53,Trunnion Mounted Flanged Ball Valves,Reduced Bore , ANSI Class 900 Size Range : 2"~32" 5  MD-53,Trunnion Mounted Flanged Ball Valves,Reduced Bore , ANSI Class 1500 Size Range : 2"~32" 6  MD-54,Trunnion Mounted Flanged Ball Valves,Full Bore , ANSI Class 150 Size Range : 2"~32" 7  MD-54,Trunnion Mounted Flanged Ball Valves,Full Bore , ANSI Class 300 Size Range : 2"~32" 8  MD-54,Trunnion Mounted Flanged Ball Valves,Full Bore , ANSI Class 600 Size Range : 2"~32" 9  MD-54,Trunnion Mounted Flanged Ball Valves,Full Bore , ANSI Class 900 Size Range : 2"~32" 10  MD-54,Trunnion Mounted Flanged Ball Valves,Full Bore , ANSI Class 1500 Size Range : 2"~32"