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1) NF Series Mud Pump
Main Features
Power end
The frame is a welded structure with steel plate, high strength, rigidity and light weight.
Adopting herringbone gear drive, running smoothly.
The crankshaft is made of alloy steel, the crosshead guide is replaceable.
Adopting roller bearing, which enhances running smoothness and loading capacity.
The seal fittings for piston rod are a unique and advanced structure, with excellent seal performance.
At the important locations such as gears, bearings and crosshead etc. we adopt forced and splash lubrication mode
Fluid end
The hydraulic cylinder is straight pass-through structure, it can make the fluid flow smoothly, volumetric efficiency higher and structure compact.
The three hydraulic cylinders are interchangeable.
The cylinder head and valve pot cover can be rapidly tightened, convenient for assembly and teardown.
The suction valve and discharge valve can be interchanged
The piston and liner bore are open wide structure, convenient for observing Adopting the spiral locknut, convenient for assembly and teardown.
SPECIFICATIONAS:
|
Model |
3NB－500F |
3NB－800F |
3NB－1000F |
3NB－1300F |
F |
|
Type |
triplex single action piston pump |
triplex single action piston pump |
triplex single action piston pump |
triplex single action piston pump |
triplex single action piston pump |
|
Rated input power |
373kW |
597kW |
746kW |
969kW |
1193kW |
|
（500hp） |
（800hp） |
（1000hp） |
（1300hp） |
（1600hp） |
|
|
Rated speed |
120 stroke/minute |
150 stroke/minute |
140 stroke/minute |
120 stroke/minute |
120 stroke/minute |
|
（120SPM） |
（150SPM） |
（140SPM） |
（120SPM） |
（120SPM） |
|
|
Max. liner bore × stroke |
170×229mm |
170×229mm |
170×254mm |
180×305mm |
180×305mm |
|
6.6930″×9″ |
6.6930″×9″ |
6.6930″×10″ |
7.0867″×12″ |
7.0867″×12″ |
|
|
Gear type |
Herringbone (double-spiral) |
Herringbone (double-spiral) |
Herringbone (double-spiral) |
Herringbone (double-spiral) |
Herringbone (double-spiral) |
|
Gear ratio |
3.962:1 |
4.185:1 |
4.207:1 |
4.206:1 |
4.206:1 |
|
Lubrication |
force and splash |
force and splash |
force and splash |
force and splash |
force and splash |
|
Suction flange |
8″ (203mm） |
10″（254mm） |
12″（305mm） |
12″（305mm） |
12″（305mm） |
|
Discharge flange |
103mm- 35MPa |
130mm-35MPa |
130mm-35MPa |
130mm-35MPa |
130mm-35MPa |
|
GB3165.2-82 |
GB3165.2-82 |
GB3165.2-82 |
GB3165.2-82 |
GB3165.2-82 |
|
|
4″- 5000psi |
5 1/8″- 5000 psi |
5 1/8″- 5000 psi |
5 1/8″- 5000 psi |
5 1/8″- 5000 psi |
|
|
Pinion shaft diameter and extension |
139.7×257mm |
177.8×324mm |
196.9×337mm |
215.9×337mm |
215.9×337mm |
|
5 1/2″×10 1/8″ |
7″×12 3/4″ |
7 3/4″×13 1/4″ |
8 1/2″×13 1/4″ |
8 1/2″×13 1/4″ |
|
|
Key |
31.75×31.75mm |
44.45×44.45mm |
50.8×50.8mm |
50.8×50.8mm |
50.8×50.8mm |
|
1 1/4″×1 1/4″ |
1 3/4″×1 3/4″ |
2″×2″ |
2″×2″ |
2″×2″ |
|
|
Valve pot |
API6 # |
API6 # |
API6 # |
API7 # |
API7 # |
|
Overall dimension |
3400×1950×1440mm |
3963×3024×1694mm |
4269×3167×1818mm |
4426×3260×2004mm |
4426×3260×2004mm |
|
133 7/8″×76 3/4″×56 11/16″ |
156″×119″×66 11/16″ |
168″×124 5/8″×71 9/16″ |
174 1/4″×128 3/8″×78 7/8″ |
174 1/4″×128 3/8″×78 7/8″ |
|
|
Weight of main body |
10350 kg |
14500 kg |
18790 kg |
24532 kg |
24715 kg |
|
22818 lb |
31967 lb |
41425 lb |
54084 lb |
54487 lb |
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