QZ3NB-650 Mud pump

QZ3NB—650 Drilling mud pump The SL3NB-650 mud pump is researched and manufactured by Qingzhou petroleum machinery factory. The design characteristic is an optimization of parameter. it can increase the stroke properly, lower the speed reasonably, improve the suction capability of the pump, prolong the life of the wearing parts. The pumps are used for oil-field, other industrial and mining establishments and for the oil drilling, well work over. They are mainly installed on 1500m rig. The series pump produces according to SY5138 of the petroleum industry standard strictly, and carry through factory's experiment according to the standard QZ3NB—650 Drilling mud pump technical parameter TypeTriplex Single Acting Piston PumpStroke Length:203 mmRated power650HP (485KW)Suction inletΦ254 mmRated speed150 SPMDischarge outletΦ83 mmGear ratio4.07 Weights13600 KgBased on 90% mechanical efficiency and 100% volumetric efficiency. Pump Speed(SPM)Liner Size (mm)110 120 130 140 150 160 170 180 Theoretical Displacement (L/s)15014.517.220.223.426.930.634.638.813012.614.917.520.323.326.53033.611010.612.614.817.219.722.425.428.5Pressure Rating( MPa)3025.521.618.616.214.212.611.2