Mud Pump (3NB Series Mud Pump for Oilfield Drilling)

Mud Pump <small>(3NB Series Mud Pump for Oilfield Drilling)</small>
Mud Pump <small>(3NB Series Mud Pump for Oilfield Drilling)</small>
Mud Pump <small>(3NB Series Mud Pump for Oilfield Drilling)</small>
Mud Pump <small>(3NB Series Mud Pump for Oilfield Drilling)</small>
Mud Pump <small>(3NB Series Mud Pump for Oilfield Drilling)</small>
Mud Pump <small>(3NB Series Mud Pump for Oilfield Drilling)</small>
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Features
1. Power End

The 3NB series mud pump's shell is welded by steel plate and the strength has been tested for its intensity. The crankshaft is a combination of straight shaft and eccentric wheel. Its elastic ripple tube type sealing device for the intermediate rod has got a national patent certificate. The transmission gear comes with medium hard gear teeth surface resulting in higher bearing capacity.

2. Fluid End
The valve of fluid side of the mud pump is forged in a vertical one-piece structure whose interstice volume is quite limited. After rolling pressing, the k1:6 wimble surface of the valve housing matches the valve seat more precisely. The water supply valve is fastened reliably. The valve box and the base holes conform to APL standard.

3. Designing Features
As a professional mud pump supplier, we have greatly optimized the pump parameters and lengthened the stroke appropriately. Specifically, the number of strokes is reduced to enhance the intake performance of the pump and increase the service life of some quick-wear parts. This industrial pump is widely used in oil fields, industrial and mining enterprises, etc. It is produced strictly according to the Chinese national standards (SY5138) and subjected to strict quality tests accordingly.

Technical Specification

ModelTypeInput Power (Hp)Matching EngineRated Pump Speed (stroke/min)Stroke Length (mm)Transmission Ratio of Gear
3NB-350Three cylinders with single action3506190ZC-1 (Diesel engine)
Y400-6.28kW (Electric motor)
1201804.483
Rated Input
Speed (rpm)
Sustaining speed (rpm)Inlet Pipe DiameterOutlet Pipe DiameterExternal Dimension (mm)Weight (ton)
582.8540203mm76mm3100×2080×20158.058

Performance Parameter

Pump StrokesCylinder Diameter (mm)
90100110120130140150160
Stroke/minDisplacement (L/s)
1307.449.1811.113.2315.5218.0120.6723.52
1206.878.4810.2612.2114.3316.6219.0821.71
1106.297.779.411.1913.1415.2317.4919.90
1005.727.068.5510.1711.9413.8415.9018.09
Pump Pressure (MPa )312520.817.514.912.811.29.8
The parameters are calculated on the basis of 90% mechanical efficiency and 100% volumetric efficiency.

Technical Specification

ModelTypeRated Stroke NumberRated Power (kW)Rated Speed of Driving Axle (rpm)Gear Speed RatioPipe Inlet Diameter (mm)
3NB-500Three cylinders with single action (Piston type)120r/min3735144.285:1203
Outlet Pipe Diameter (mm)External Dimension (mm)Weight (ton)
101.53658×2702×22079.8

Technical Specification

Pump Strokes (Stroke/min)Cylinder Sleeve Diameter (mm) and Rated Pressure (MPa)
170160150140130120110100
9.210.411.813.615.818.622.126.7
Displacement (L/S)
12025.9422.9820.2017.6015.1712.9310.868.95
11023.7821.0718.5216.1313.9111.859.938.23
10021.6219.1516.8414.6612.6510.779.037.48
9019.4617.2415.1613.1911.399.698.136.73

Technical Specification

ModelTypeInput Power (Hp)Rated Speed of Driving Axle (rpm)Rated Pump Speed (stroke/min)Stroke Length (mm)Transmission Ratio of Gear
3NB- 800Three cylinders with single action8004201202103.5
Weight excluding the big belt pulley and air bag (ton)Inlet Pipe Diameter (mm)Outlet Pipe Diameter (mm)External Dimension (mm)Weight (ton)
13.2254 -305mm1003590×2155×201014.8

Performance Parameter

Diesel Engine Speed (rpm)Pump Speed (stroke/min)Theoretical Displacement (L/s)
φ140φ150φ160φ170φ180
150012019.3822.2525.328.5832.05
130011017.7720.423.2126.2029.37
120010016.1518.5421.1023.8226.70
11009515.3417.6120.0422.6325.37
Rated Pump Pressure (MPa )/27.323.820.918.516.5
The parameters are calculated on the basis of 90% mechanical efficiency and 100% volumetric efficiency.

Technical Specification

ModelTypeInput Power (Hp)Rated Speed of Driving Axle (rpm)Rated Pump Speed (stroke/min)Stroke Length (mm)Transmission Ratio of Gear
3NB - 1000Three cylinders with single action10003831102733.482
Weight excluding the big belt pulley and air bag (ton)Inlet Pipe Diameter (mm)Outlet Pipe Diameter (mm)External Dimension (mm)Weight (ton)
14.3254-3051053750×2155×205215.8

Performance Parameter

Diesel Engine Speed (rpm)Pump Speed (stroke/min)Theoretical Displacement (L/s)
φ140φ150φ160φ170φ180
130011023.1125.6330.1934.0838.21
120010121.2223.5327.7231.2935.08
11009319.5421.6725.5228.8132.30
10008517.8619.8123.3326.3329.53
Rated Pump Pressure (Mpa)/2925222018
The parameters are calculated on the basis of 90% mechanical efficiency and 100% volumetric efficiency.

Technical Specification

ModelTypeInput Power (Hp)Rated Speed of Driving Axle (rpm)Rated Pump Speed (stroke/min)Stroke Length (mm)Transmission Ratio of Gear
3NB - 1300Three cylinders with single action13004381203053.657
Weight excluding the big belt pulley and air bag (ton)Inlet Pipe Diameter (mm)Outlet Pipe Diameter (mm)External Dimension (mm)Weight (ton)
18.2254- 3051234600×2750×252520.8

Performance Parameter

Diesel Engine Speed (rpm)Pump Speed (stroke/min)Theoretical Displacement (L/s)
φ140φ150φ160φ170φ180
150012028.1632.3236.1841.5246.54
140011226.2830.1734.3238.7543.44
130010424.4028.0131.8736.0040.34
12009622.5325.8629.4233.2137.24
11008820.6523.7026.9730.4434.13
10008018.7721.5524.5227.6831.03
Rated Pump Pressure (Mpa)/3127242119
The parameters are calculated on the basis of 90% mechanical efficiency and 100% volumetric efficiency.

Technical Specification

ModelTypeInput Power (Hp)Rated Speed of Driving Axle (rpm)Rated Pump Speed (stroke/min)Stroke Length (mm)Transmission Ratio of Gear
3NB - 1600Three cylinders with single action16004381203053.657
Weight excluding the big belt pulley and air bag (ton)Inlet Pipe Diameter (mm)Outlet Pipe Diameter (mm)External Dimension (mm)Weight (ton)
25.56254- 3051234720×2822×266027.1

Performance Parameter

Diesel Engine Speed (rpm)Pump Speed (stroke/min)Theoretical Displacement (L/s)
φ140φ150φ160φ170φ180φ190
150012028.1632.3236.7841.5246.5451.85
140011226.2830.1734.3238.7543.4448.40
130010424.4028.0131.8736.0040.3443.96
12009622.5325.8629.4233.2137.2441.43
11008820.6523.7026.9730.4434.1338.03
10008018.7721.5524.5227.6831.0334.57
Rated Pump Pressure (Mpa)/353329262321
The parameters are calculated on the basis of 90% mechanical efficiency and 100% volumetric efficiency.
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