Mud Pump (F-500)

Product Description

Features:

1. Power end

Continuous tooth herringbone gear. One-piece alloy steel crank. Renewable crosshead guide. The frame is made of welded steel plate to provide the frame with strength, good rigidity and lightweight. The extension rod packing is of duplex seal structure to provide the good seal result. The power end uses the combined lubrication system of forced lubrication and splash lubrication.

2. Crankshaft

The crankshaft is made of cast alloy steel and is furnished with big-geared ring, connecting rod and bearing. The tooth form of the big-geared ring is herringbone gear. The gear bore and the crankshaft surface is interference fitted and they are both fastened with bolts and lock nuts. The big end of the connecting rod is mounted on three eccentric straps of the crankshaft through single row short cylindrical roller bearings and the small end on the crosshead pin through double row long cylindrical roller bearing. Double row radial spherical roller bearings are mounted at both ends of the crankshaft.

3. Cylinders

Cylinders are made of forged alloy steel. Three cylinders of each pump are interchangeable. Valve-over-valve (through type cylinder) design reduces the cylinder volume and promotes the volumetric efficiency. At customers' request. The cylinder surface may be nickel plated to improve the abrasion resistance.

Model	Type	Rated stroke speed	Input power	Type gear	Gear ratio	Diameter of suction pipe
NF-500	Triplex single action piston	165r/min	373kw	Herring bone gear	4.285:1	7.992inch
Diameter of discharge pipe	Pinion gear size	Keys	Valve ports	weight	lubrication
3.996inch 5000psi	5.50inch	1.250×1.250inch	Valve over valve API#5	21541pound	Pressure & splash

Technical Parameter

Stroke/min	Rated horse power		Liner size (inch) and rated pressure(Mpa, psi)
			6.70		6.30		5.91		5.51		5.12		4.72		4.33		3.94
			9.4	1365	10.5	1540	12.1	1750	13.9	2010	16.1	2740	22.5	3260	22.5	3260	27.2	3945
	KW	HP	Displacement L/S (gal./s)
170	379	515	36.75	9.71	32.56	8.60	28.61	7.56	24.93	6.59	21.49	5.68	18.31	4.84	15.39	4.07	12.72	3.36
165	373	500	35.67	9.42	31.60	8.35	27.77	7.34	24.19	6.39	20.86	5.51	17.77	4.70	14.93	3.94	12.34	3.26
150	334	455	32.43	8.57	28.73	7.59	25.25	6.67	21.99	5.81	18.96	5.01	16.16	4.27	13.58	3.95	11.22	2.96
140	312	424	30.27	8.00	26.81	7.08	23.56	6.22	20.53	5.42	17.70	4.68	15.08	3.98	12.67	3.35	10.47	2.77
130	190	394	28.11	7.43	24.90	6.58	21.88	5.78	19.06	5.04	16.44	4.34	14.00	3.70	11.77	3.11	9.73	2.57
120	267	364	25.94	6.85	22.98	6.07	20.20	5.37	17.60	4.65	15.17	4.01	12.93	3.42	10.86	2.87	8.98	2.37
110	145	333	23.78	6.28	21.07	5.57	18.52	4.89	16.13	4.26	13.91	3.67	11.85	3.13	9.96	2.63	8.23	2.17
1			0.2162	0.057	0.1915	0.051	0.1683	0.044	0.1466	0.039	0.1264	0.033	0.1077	0.028	0.0905	0.024	0.0748	0.020