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Mud Pump
NF-2200 Mud Pump
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Description


Features
1、Power end features
Continuous tooth herringbone gear. One-piece alloy steel crank. Renewable crosshead guide. The frame is made of welded steel plate to provide the frame with high strength, good rigidity and lightweight. The extension rod packing is of duplex seal structure to provide the good seal result. The power end uses the combined lubrication system of forced lubrication and splash lubrication.
2、Crankshaft 
The crankshaft is made of cast alloy steel and is furnished with big geared ring, connecting rod and bearing. The tooth form of the big-geared ring is herringbone gear. The gear bore and the crankshaft surface is interference fitted and they are both fastened with bolts and lock nuts. The big end of the connecting rod is mounted on three eccentric straps of the crankshaft through single row short cylindrical roller bearings and the small end on the crosshead pin through double row long cylindrical roller bearing. Double row radial spherical roller bearings are mounted at both ends of the crankshaft.
3、Cylinders
Cylinders are made of forged alloy steel. Three cylinders of each pump are interchangeable. Valve-over-valve (through type cylinder) design reduces the cylinder volume and promotes the volumetric efficiency. At customers’ request, the cylinder surface may be nickel plated to improve the abrasion resistance.

Parameters
 
Model Type Rated Stroke Rated Power Gear type Gear Ratio Suction Pipe Diameter
NF-2200 Triplex piston single role 105 r/min 1640kw Herringbone gear 3.512:1 305mm
Discharge Pipe Diameter Small diameter gear Bond Valve Weight Lubrication
130mm 5000psi 254mm 63.5×44.45mm Valve valve on theAPI#8 38460kg Mandatory increases spatter
 
Stroke
/min
Rated Power Liner diameter(mm)& Pressure Mpa(psi)
230 220 210 200 190                    
19.0 2760 20.8 3015 22.8 3310 25.1 3645 27.9 4040                    
KW HP Displacement(L/S)(gal./s)                    
*105 1640 2200 77.65 1231 71.05 1126 64.73 1026 58.72 931 52.99 840                    
90 1406 1886 66.56 1055 60.90 965 55.49 880 50.33 798 45.42 720                    
80 1250 1676 59.16 938 54.13 858 49.32 782 44.74 709 40.37 640                    
70 1094 1467 51.76 820 47.36 751 43.16 684 39.14 620 35.33 560                    
60 937 1257 44.37 703 40.60 644 36.99 586 33.55 532 30.28 480                    
50 781 1048 36.97 586 33.83 536 30.83 489 27.96 443 25.23 400                    
1     0.7395 11.72 0.6766 10.72 0.6165 9.772 0.5592 8.863 0.5047 8.000                    
 
Stroke
/min
Rated Power Liner diameter(mm)& Pressure Mpa(psi)
180 170 160 150 140
31.0 4505 34.5 5000 34.5 5000 34.5 5000 34.5 5000
KW HP Displacement(L/S)(gal./s)
*105 1640 2200 47.56 754 42.42 672 37.58 596 33.03 524 28.77 456
90 1406 1886 40.77 646 36.36 576 32.21 511 28.31 449 24.66 391
80 1250 1676 36.24 574 32.32 512 28.63 454 25.16 399 21.92 347
70 1094 1467 31.71 503 28.28 448 25.05 397 22.02 349 19.18 304
60 937 1257 27.18 431 24.24 384 21.47 340 18.87 299 16.44 261
50 781 1048 22.65 359 20.20 320 17.89 284 15.73 249 13.70 217
1     0.4530 7.180 0.4040 6.404 0.3579 5.673 0.3146 4.986 0.2740 4.343
 
Note: 1, volumetric efficiency by 100% and 90% mechanical efficiency by 2, and the recommended number of continuous operation-the input power

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