API 7K ZB-400II PLUNGER PUMP

ZB400Ⅱ plunger pump is horizontal single acting reciprocating pump. It consists of power end, fluid end reducer and lubricating system. It is mainly used for circulating system of work over, wash well, cement well and drilling operations.

Structural Features:

1, Power end consists of gearbox, crankshaft, connection rod, cross head, cross head pin and roller bearing, etc. It features simple in structure, high in strength and rigidity, light in weight and longer in service life.  
2,Frame is box type welded with low carbon steel plate, which features high anti bending stress.   
3,Connection rod and crass head is alloy-casting pieces.  
4,Crosshead pin is alloy-steel forged.   
5, Sleeve of big end for connection rod is specially aluminum made wear resistant casting piece.  
6,Sleeve of small end for connection rod is albronze-casting piece.   
7,The housing is welded with low carbon steel plate. Gear and gear reducer is forged and especially heat-treated. It features high driving capacity and efficiency because herringbone gear drive is used.    
8,    Fluid end consists mainly of module, suction and discharge valve assembly, suction and discharge spring, suction and discharge pipe, plunger, packing, safety valve and pressure regulator, etc.     
9,Module is alloy-forged piece with special heat treatment. The surface is nickel-plated for weak acid resistant feature.       
10,Power end and fluid end with lubricating oil pump and oil tank.

 Technical parameters:
Max horse power:    400hP  (298kW)
Max pressure:               35MPa  (5000psi)42MPa(6000psi)
Stroke length:                6"   (152.4mm)
Gear ratio:                        4.57:1
Outlet diameter:            2420×1536×1676mm
Weight(Approx):             4800kg( Include oil tank and skid)

Performance data