3 NB series mud pump

Description

Design features :
> The power end : The housing is welded steel-plate construction . It is stress-relieved after welding . The drive gears ate in volute type gears which allow smooth operation , high efficiency and long life . The crankshaft is a hollow one-piece steel casting . The power end is splash-Iubricate.
> The fluid end : The suction and the discharge flanges conform to ASA and API specification .
> The piston rod is connected with an intermediate rod by means of clamps to realize quick assembly & disassembly .
> The valve seat bores have a bottom shoulders . The pistons and loners are lubricated and cooled by an independently spraying pump to have a longer service life .
> Versatility in expendables.

Parameter

Model	3NB500C	3NB1000C	3NB1300C	3NB1600/LN1600H
Power KW（PS）	368(500)	735(1000)	956(1300)	956(1300)
Strokes per minute pm	95	110	120	120
Stroke mm	254	305	305	305
Gear ratio	3.82	3.833	3.81	3.81	3.89
Speed of driving shaft r/min	363	423	457	457	467
Max. working pressure Mpa	30	35	35	35	51.7
Max. dia. Of liner mm	160	170	180	190
Dia. Of suction pipe mm	254	305	305	305
Dia. Of discharge pipe mm	100	100	100	100
Overall dim. mm （LWH）	4220×2640 ×2430	5170×2809 ×2530	5010×1942 ×1918	4450×2850 ×2077	5000×2850 ×2090
Weight kg	15940	21450	23000	29700	28345