Model 3NB800 3NB1000 3NB1300 3NB500C 3NB1000C 3NB1300C 3NB1600 Power KW(HP) 588(800) 735(1000) 956(1300) 368(500) 735(1000) 956(1300) 1176(1600) Strokes per minutes (pm) 160 150 140 95 110 120 120 Stroke (mm) 216 235 245 254 305 305 305 Gear ratio 2.51 2.658 2.868 3.82 3.833 3.81 3.81 Max. working pressure 33 35 35 30 35 35 35 Max. dia of liner(mm) 160 170 171.5 160 170 180 190 Dia. Of suction pipe (mm) 257 254 257 254 305 305 305 Dia. Of discharge pipe (mm) 100 100 100 100 100 100 100 -