
3NB series mud pumps are horizontal triplex single-acting piston pumps, which are mainly used for well drilling, well cementing, workover, and other operations in oil, water well, geothermal, CBM, shale gas, coalfield exploration, freeze wells, and other industrial mining enterprises. They are used for transferring mud, clay gum, mortar and other mediums.The pumps adopt international advanced technology and are features like advanced structure, reliable operation, good suction performance, the long service life of wearing parts, good interchangeability, easy of maintenance and repair, and so on.
Model | 3NB350 | 3NB500 | 3NB600 | 3NB800 | 3NB1000 | 3NB1300 | 3NB1600 | 3NB2200 |
Type | Triplex | Triplex | Triplex | Triplex | Triplex | Triplex | Triplex | Triplex |
Input Power (kw/hp) | 257 350 | 368 500 | 441 600 | 588 800 | 735 1,000 | 955 1,300 | 1,176 1,600 | 1,640 2,200 |
Rated Speed (spm) | 130 | 120 | 135 | 130 | 125 | 120 | 120 | 105 |
Stroke (mm) | 180 | 180 | 196 | 274 | 274 | 305 | 305 | 356 |
Max.Liner Dia. (mm) | Ф160 | Ф170 | Ф180 | Ф180 | Ф180 | Ф190 | Ф190 | Ф230 |
Suction Inlet(mm) | 203 | 200 | 200 | 254 | 254 | 305 | 305 | 305 |
Discharge Inlet(mm) | 76 | 83 | 101 | 101 | 101 | 101 | 101 | 130 |
Gear Ration | 4.483 | 4.696 | 4.696 | 3.482 | 3.482 | 3.657 | 3.657 | 3.152 |
Max. Pressure (Mpa/psi) | 31 4,495 | 35 5,075 | 35 5,075 | 34.5 5,000 | 35 5,075 | 35 5,075 | 35 5,075 | 35 5,075 |
Drive Shaft Speed | 582.8 | 563.52 | 633.96 | 435.25 | 435.25 | 438.84 | 438.84 | 369 |
Overall Size(m3) | 3,600x 2,080 x2,015 | 3,600x 2,280 x2,080 | 3,900x 2,285 x2,085 | 4,600x 2,155 x2,052 | 4,600x 2,155 x2,052 | 5,250x 2,450 x2,625 | 4,720x 2,822 x2,660 | 6,000x 2,950 x3,250 |
Weight (kg) | 8,058 | 9,484 | 11,000 | 17,200 | 18,000 | 23,000 | 27,100 | 38,800 |

equipment, and a workshop of over 3000 square meters.Our mission is to provide customers with the best petroleum equipment, and we are willing to work hard for this target.
Q1: Are you a factory or trading company ?
A: We are factory and China Top 10 line pipe manufacturer.
Q2: How about your MOQ( Minimum Order Quantity)?
A: We have stock of common sizes at hand, so even few ton is accepted.
Q3: What do your factory do regarding quality control ?
A: From material to products, we inspect each process to keep good quality.
Q4: What methods of payment do you accept ?
A: After you confirm our PI (Proforma Invoice), we will request you to pay. We accept T/T, L/C.