Its compact structure, lighter weight, and small size with high efficiency can be matched with kinds of pump devices according to drilling rig’s requirement and different conditions.

Featuresa

? Its compact structure, lighter weight, and small size with high efficiency can be matched with kinds of pump devices according to drilling rig’s requirement and different conditions.

?Its durable and compact structure can ensure the smooth operation of pump, and meet the specific requirements of user.

? Six models of P series mud pump can be chosen, the input power from 500HP (373kw) to 2200HP (1640kw).

? Its durable fluid end has greatly improved triplex pump’s function and capacity, what’s more, its independent design is easy to inspect and convenient to maintenances.

The design features of PZ series mud pump’s power end

? Steel frame structure

? Pinion gear shaft is integral structure, and pulley wheel and sprocket wheel can be installed at any end or two ends.

?Roller bearing is adopted.

? The splash lubrication is adopted in the parts of gear wheel and bearing crosshead.

? Spray system is used to cool and lubricate the surface of piston and liner.

? Liner and piston rod is clamp-type connection, which is easy to dismantle and change.

? Hard alloy mental liner

? Herringbone gear wheel

Fluid end features of PZ series mud pump

? Liquid cylinder is L-shaped layout, which will enable liquid to flow smoothly and reduce its vibration and pressure fluctuations.

? Combined liquid cylinder can be interchangeable, or be changed separately.

? Fast rotary valve cover can be easily and quickly dismantled and installed.

? Wedge-lock valve cover is an optional item, whose locking function is solid and reliable and easy to load and unload.

? Suction pipe can suck from front and two sides.

? Discharging pipe can be connected out from two sides.

? Piston and liner cavity is open type, which is easy for observation.

Technical Specification
Model	Type	Rated Stroke Speed	Rated power	Height,floor to center of front inlet suction	Height,floor to center of discharge		Ratio of gears	Hydrostatic test pressure of standard fluid cylinders
PZ-500	Triplex	165 spm	500 hp	10 5/8 inch	33 1/2 inch		2.742 :1	10000 psi
Diameter of suction pipe	Diameter of Discharge pipe	Width over pinion shaft	Max. fluid cylinder liner bore	Height, floor to top of gear case	Height over fluid cylinders	Stroke		Valve pot, API number	Weight
8 inch	4 inch	81 7/16 inch	6 1/4 inch	54 1/2 inch	48 7/8 inch	7 3/4 inch		MOD5.5	16750 lbs.

Technical Parameter
Pumpspeed (spm)	Rated Horse Power		Liner Size(inch)and rated Pressure kg/cm2(psi)
			6 1/4		6		5 1/2		5			4 1/2		4			3 1/2
			106.5	1515	115.7	1645	137.4	1955	166.3	2365		205.3	2920	259.8		3695	339.6	4830
	KW	HP	Displacement L/min**(gal./min**)
165*	373	500*	1929	510	1777	470	1493	395	1234		326	1000	264	790	209		605	160
145	327.5	439	1695	448	1562	413	1312	347	1085		287	879	232	694	183		531	140
120	270.8	363	1403	371	1293	341	1086	287	898		237	727	192	574	152		440	116
100	226	303	1169	309	1077	285	905	239	748		198	606	160	479	126		367	97
80	180.5	242	935	247	862	228	724	191	598		158	485	128	383	101		293	77