The BW-250 mud pump is a horizontal, three-cylinder reciprocating single-acting piston pump, featuring two cylinder bore sizes and four speed levels. The large cylinder bore (medium 80mm) is suitable for 1000-meter large-bore drilling rigs, while the small cylinder bore (medium 65mm) is for 1500-meter small-bore rigs. Both bore sizes offer four displacement levels, catering to different 7L diameter and yL depth requirements.
Main Technical Parameters:
Type: Horizontal Three-Cylinder Reciprocating Single-Acting Piston Pump
Stroke (mm): 100
Bore Diameter (mm): 80, 65
Flow Rate (times/min): 200 116 72 42 200 116 72 42
Traffic (~)1-/ft): 250, 145, 90, 52, 166, 96, 60, 35
Pressure (kg/cm): 2545, 60, 60, 40, 60, 70, 70
Volume Efficiency (%): 83
Overall Efficiency (%): 70
Required Power (%): 15
Triangular Belt Pulley Hub Diameter (mm): (Type B x 5 Grooves) 410

































