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3NB-1000 Mud Pump

3NB-1000 Single Action Triplex back and forth piston pump

Model Type input Power Rated speed drive 
shaft(Rev / min)
Rated pump 
speed
Stroke 
length(mm)
Gear Ratio
3NB-1000 Single Action Triplex  1000hp 383 110 Impact/min 273 3.482
Weight Without large 
pulley and the air bag
Inhalation 
diameter
Discharge pipe 
diameter
Dimensions(mm) Weight
14.3t 254-305mm 105mm 3750*2155*2052 15.8t

Performance parameter

Engine speed(Rev/min) Pump speed(Impact/min) Theoretical displacement(L/S)
Φ 140 Φ 150 Φ 160 Φ 170 Φ 180
1300 110 23.11 25.63 30.19 34.08 38.21
1200 101 21.22 23.53 27.72 31.29 35.08
1100 93 19.54 21.67 25.52 28.81 32.3
1000 85 17.85 19.81 23.33 16.33 19.53
Pump pressure Mpa   29 25 22 20 18
Mechanical efficiency by 90%     100% volumetric efficiency