... 31970lb)1879kg(41420lb)24572kg(54170lb)24791kg(54660lb)2 3NB series mud pump instruction:3NB mud pumps,which are used to circulate drilling ... motors to drive the downhole drilling machines and downhole tools.3NB series mud pumps are composed of the power end and ... :valve pots,liners and pistons,high pressure manifolds, suction manifolds.3NB mud pumps series are 3NB500, 3NB800, 3NB1000, 3NB1300, 3NB1600 ...