 
    				    
Triplex piston mud pump 3NB-1300, manufactured by American technology in accordance with the standards of the American Institute of petroleum industry (API).
Specifications of mud pump 3NB-1300
| Type | Triplex piston mud pump | Stroke length | 305mm | 
| Rated power | 1300l.with. (956МПа) | The intake manifold | ∅300mm | 
| Rated speed | 120 Rev/m | The discharge manifold | ∅102mm | 
| Gear ratio gear | 4,194 | Weight | 26800 Kg | 
Parameter characteristic of the mud pump 3NB-1300
| The diameter of cylinder liner(mm) | ||||||
| ∅130 | ∅140 | ∅150 | ∅160 | ∅170 | ∅180 | |
| Theoretical flow/sec | ||||||
| 120 | 24.27 | 28.16 | 32.52 | 36.18 | 41.52 | 46.54 | 
| 100 | 20.23 | 23.46 | 27.1 | 30.15 | 34.6 | 38.78 | 
| 90 | 18.21 | 21.12 | idth="378">24.39 | 31.14 | 34.90 | |
| Nominal pressure(MPa) | 34.3 | 30.5 | 26.6 | 23.4 | 20.7 | 18.5 |