3NB Series Mud Pump

PRODUCTS

3NB series mud pump is a triple plunger pump with single acting piston, designed and manufactured according to Chinese standard. Its function is to supply drilling fluid during oil and gas drilling of deep exploration and production wells in macroclimatic areas. KINGWELL can provide 3NB series mud pump and mud pump spare parts.

The 3NB series mud pump has a special design feature that optimizes parameters, increases the stroke accordingly, and intelligently reduces the number of strokes to improve the suction performance of the pump and extend the service life of wear parts.

3NB series mud pump adopts international advanced technology, which has the characteristics of reasonable structure, advanced technology, reliable use, good suction, long service life of wear parts, good interchangeability, easy maintenance, etc. Its price is much more competitive compared with mud pump F series

Technical Parameters for 3NB Series Mud Pump

Model	3NB350	3NB500	3NB600	3NB800	3NB1000	3NB1300	3NB1600
Type	Horizontal Triplex Single Acting Piston Pump
Power	350HP (257kw)	500HP (368kw)	600HP (441kw)	800HP (588kw)	1000HP (735kw)	1300HP (955kw)	1600 HP (1176kw)
Rated Stroke (SPM)	130	120	135	130	125	120	120
Stroke Length	180mm	180mm	196mm	273mm	273mm	305mm	305mm
Ratio	4.483	4.696	4.696	3.482	3.482	3.657	3.657
Valve Cavity	5#	5#	5#	6#	6#	6#/7#	7#
Max. Piston diameter	φ90-φ160mm	Φ100-φ170mm	Φ100-φ180mm	Φ120-φ180mm	Φ120-φ180mm	Φ130-φ190mm	Φ140-φ190mm
Outlet pressure (max)	31Mpa	35Mpa	35Mpa	35Mpa	35Mpa	35Mpa	35Mpa
Displacement (max)	23.51L/S	24.50L/S	33.65L/S	45.13L/S	43.40L/S	51.86L/S	51.86L/S
Inlet Connection	203mm	203mm	203mm	254mm	254mm	305mm	309mm
Outlet Connection	76mm	83mm	83mm	101 mm	101 mm	101 mm	128 mm
Overall dimensions(mm)	360020802015	360022302080	360022302080	390021552052	460022402052	430024502513	550028222660
Weight(kg)	8058	9484	11000	17200	18000	21500	27100

Technical Features of 3NB Series Mud Pump

Horizontal triple plunger pumps with single acting piston: advanced design, stable operation, light weight and small size.
It has an increased piston stroke length, it is possible to work at low speeds, helping to reduce wear of parts in the pressure section of the pump
Good suction power, long service life of spare parts.
The pump body material is a welded steel sheet and cast steel structure: after welding, internal stress relieving treatment is carried out, which has good rigidity and high strength.
Crankshaft: Integrated alloy steel precision casting ensures mechanical performance and long-term fatigue strength.
Medium hardness gear: high load capacity, reliable operation, high efficiency and long service life.
Rugged and compact layout for smooth operation.

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