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PAH275 Mud Pump

PZ features: pleasing shape, advanced design, reasonal structure, and highefficiency. At power end, pinion shaft and bull gear are both of hard teeth,wear-resistant and transmission stable.
Main parts at power end and all parts of fluid end are exchangeable withsimilar pumps from the United States.  

The pump frame construction is gang welding on casting andsteel–plate.
Convenient assembly and disassembly for whole crankshaft assembly.
The bull gear and pinion shaft are composed of helical gears in pairsrespectively. Small size. Teeth face is hard face, with long service life.
The crosshead is of welded whole body ductile cast iron construction, heattreated, wear-resistant, and high strength.  
The crosshead pin and crosshead are taper connected, fine contact, and simpleassembly.
The crosshead contact with guide directly.
The guide is made of exchangeable copper, which efficiently extends its servicelife.
All the bearings, crossheads and guides are double lubricated with splash andforce.
The transmission shaft is equipped with single–row radial short–rollerbearings.
The main bearings are double – row radial spherical – roller bearings. (taperratio: 1:12)The crosshead is equipped with long – roller bearings.
The big end of the connecting rod runs in radial roller bearing.
The intermediate rod stuffing features dual sealing structure, with goodsealing effect.
The side plates aside the frame are of plastic transparent plate, running andlubrating status inside the power end can be watched directly.
The monoblock forging of hollow sphere for the pulsation damperer.
The piston rod conforms to the spec API-7K. The piston is fixed with the 1-1/2
locking nuts. Without wearness of the piston and with the pistonthrough the separated water tank ,the piston sprey pump may sprey water orerrosion-proof water to lubricate and to cool .
The piston is sealed by the column surface and the rubber seals. Aftercompressing  with the loosing-proof locking nuts, the nut may preventloosing of the piston and seal the surface.


Model

Max Input HP

Max RPM

Piston Cylinder


 Displacement

Max PSI

Pump Weight


Diameter

Per Revolution

Per Minute


kg

Ib


PAH275

275

175

in

mm

Gal.

L

Gal.

L/min

PSI

Kg/sqNaN2

4450

9810

5*

127

2.04

7.72

357

1,351

1,122

79

4.5

114

1.65

6.25

289

1,094

1,386

97

4

102

1.31

4.96

228

863

1,753

123

3.5

89

1.00

3.79

175

662

2,290

161

3.25

83

.862

3.26

151

572

2,657

187

3

76

.734

2.79

128

485

3,118

219