RUGAO YAOU CO., LTD.
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Home» New products » NF-800 Mud Pump

NF-800 Mud Pump

NF-800 Mud Pump
Model: NF-800
Brand Name: YAOU
Materials: steel
Payment Terms : L/C,T/T,Western Union
Product Details
Continuous tooth herringbone gear. One-piece alloy steel crank. Renewable crosshead guide.

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-800 Triplex piston single role 150r/min 596KW Herringbone gear 4.184:1 253mm
Discharge Pipe Diameter Small diameter gear Bond Valve Weight Lubrication
126.5mm5000psi 177.7mm 44.4 4×44.44mm Valve valve on theAPI#5 14500Kg Mandatory increases spatter

Stroke
/min
Rated Power Liner diameter(mm)& Pressure Mpa(psi)
170(6 3/4″) 160(6 1/4″) 150 (6″) 140(5 1/2″) 130(5 ″) 120(4 3/4″) 110(4 1/2″) 100(4″)
13.6 2000 15.4 2250 17.5 2570 20.1 2950 23.3 3420 27.3 4015 32.5 4780 34.3 5000
KW HP Displacement(L/S)(gal./s)
160 636 853 41.51 10.97 36.77 9.71 32.32 8.54 28.15 7.44 24.27 6.41 20.68 5.46 17.38 4.59 14.36 3.79
150? 596 800 38.92 10.28 34.47 9.11 30.30 8.00 26.39 6.97 22.96 6.07 19.39 5.12 16.29 4.30 13.47 3.56
140 557 747 36.32 9.59 32.17 8.50 28.28 7.47 24.63 6.51 21.24 5.61 18.10 4.78 15.21 4.02 12.57 3.32
130 517 693 33.73 8.91 29.88 7.89 26.26 6.94 22.87 6.04 19.72 5.21 16.81 4.44 14.12 3.73 11.67 3.08
120 477 640 31.13 8.22 27.58 7.29 24.24 6.40 21.11 5.58 18.21 4.81 15.51 4.10 13.03 3.44 10.77 2.85
110 437 587 28.54 7.54 25.28 6.68 22.22 5.87 19.35 5.11 16.69 4.41 14.22 3.76 11.95 3.16 9.87 2.61
1 0.2594 0.069 0.2298 0.061 0.2020 0.053 0.1759 0.046 0.1517 0.040 0.1293 0.034 0.1086 0.029 0.0898 0.024

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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