DF Series Multilevel Pump

Model
DF

DF series multilevel pump general

The conveying temperature of model DF pump is -20'C to +105t;. It can be used in conveying corrosive media without solid granules. The inlet pressure of pump is less than 0.6 Mpa. Model DF pump is a horizontal multiple - stage - single-suction sectional centrifugal pump. The outlet and inlet of the pump are vertically up. The feeding section, middle section, and discharging section are integrated by fastening bolts. The rotors of the pump are made up of blade wheels installed in the shaft, balance disc, etc. The both ends of the rotor are supported by rolling bearing or sliding bearing. The rolling bearing is lubricated with oil.The axial force of the rotor is balanced by the balance disc.
The shaft seal is mechanical seal or filling seal.On both ends of the shaft is a sealing case, inside of which there is mechanical seal or soft filling. There is some water with certain pressure inside the sealing case. The water has the effect of water seal and cooling. At the shaft seal installs replaceable shaft casing, which can protect the shaft of the pump. The pump is directly driven through flexible coupler by the prime mover. The pump rotates clockwise, looking from the prime mover side.

Table of Technical data

Pump Type	Capacity (m3/h)	head (m)	Speed (r/min)	(kw) Power		Efficiencyη (%)	Hs(m) permiss	D2 (mm)	Weight (kg)	(mm) Outline dimension			(mm)caliber		Remark
				Shaft Power	Motor power					long	weight	high	imbibe	discharged
DF25-50	15	154.5	2950	14.3	22	44	7.7	196	270	930	522	480	80	80	stage: 3
	25	150		18.9		54	7.5
	28	144		20.3		54	7.4
DF25-50	15	206	2950	19.1	30	44	7.7	196	295	990	522	480	80	80	stage: 4
	25	200		25.2		54	7.5
	28	192		27.1		54	7.4
DF25-50	15	257.5	2950	23.9	37	44	7.7	196	315	1050	522	480	80	80	stage: 5
	25	250		31.5		54	7.5
	28	240		33.9		54	7.4
DF25-50	15	309	2950	28.6	55	44	7.7	196	340	1110	522	480	80	80	stage: 6
	25	300		37.8		54	7.5
	28	288		40.7		54	7.4
DF25-50	15	360.5	2950	33.4	55	44	7.7	196	360	1170	522	480	80	80	stage: 7
	25	350		44.1		54	7.5
	28	336		47.5		54	7.4
DF25-50	15	412	2950	38.2	75	44	7.7	196	385	1230	522	480	80	80	stage: 8
	25	400		50.4		54	7.5
	28	384		54.2		54	7.4
DF25-50	15	463.5	2950	43	75	44	7.7	196	405	1290	522	480	80	80	stage: 9
	25	450		56.7		54	7.5
	28	432		61		54	7.4
DF25-50	15	515	2950	47.7	75	44	7.7	196	430	1350	522	480	80	80	stage: 10
	25	500		63		54	7.5
	28	480		67.8		54	7.4
DF25-50	15	566	2950	52.5	100	44	7.7	196	450	1410	522	480	80	80	stage: 11
	25	550		69.3		54	7.5
	28	528		74.6		54	7.4
DF25-50	15	618	2950	57.3	100	44	7.7	196	470	1470	522	480	80	80	stage: 12
	25	600		75.6		54	7.5
	28	576		81.4		54	7.4
DF46-50	28	172.5	2950	24.8	37	53	7.4	208	270	930	522	480	80	80	stage: 3
	46	150		29.9		63	7.3
	50	144		31		63.2	71
DF46-50	28	230	2950	33.1	55	53	7.4	208	295	990	522	480	80	80	stage: 4
	46	200		39.8		63	7.3
	50	192		41.3		63.2	7.2

Pump Type	Capacity (m3/h)	head (m)	Speed (r/min)	(kw) Power		Efficiencyη (%)	Hs(m) permiss	D2 (mm)	Weight (kg)	(mm) Outline dimension			(mm)caliber		Remark
				Shaft Power	Motor power					long	weight	high	imbibe	discharged
DF46-50	28	287.5	2950	41.4	55	53	7.4	208	315	1050	522	480	80	80	stage: 5
	46	250		49.8		63	7.3
	50	240		51.6		63.2	7.2
DF46-50	28	345	2950	49.6	75	53	7.4	208	340	1110	522	480	80	80	stage: 6
	46	300		59.7		63	7.3
	50	288		61.9		63.2	71
DF46-50	28	402.5	2950	57.9	100	53	7.4	208	360	1170	522	480	80	80	stage: 7
	46	350		69.7		63	7.3
	50	336		72.2		63.2	7.2
DF4-50	28	460	2950	66.2	100	53	7.4	208	385	1230	522	480	80	80	stage: 8
	46	400		79.6		63	7.3
	50	384		82.6		63.2	71
DF46-50	28	517.5	2950	74.4	100	53	7.4	208	405	1290	522	480	80	80	stage: 9
	46	450		89.6		63	7.3
	50	432		92.9		63.2	7.2
DF46-50	28	575	2950	82.7	110	53	7.4	208	430	1350	522	480	80	80	stage: 10
	46	500		99.5		63	7.3
	50	480		103.2		63.2	7.2
DF46-50	28	632.5	2950	91	132	53	7.4	208	450	1410	522	480	80	80	stage: 11
	46	550		109.5		63	7.3
	50	528		113.5		63.2	7.2
OF46-50	28	690	2950	99.3	132	53	7.4	208	475	1470	522	480	80	80	stage: 12
	46	600		119.4		63	7.3
	50	576		123.9		63.2	7.2
DF46-30	27	102	2950	11.8	22	54.5	7	166	180	775	600	585	80	80	stage: 3
	46	90		17		66	6
	50	87		18.1		65.5	5
DF46-30	27	136	2950	15.75	30	54.5	7	166	190	838	600	585	80	80	stage: 4
	46	120		22.8		66	6
	50	116		24.2		May-65	5
DF46-30	27	170	2950	19.7	37	54.5	7	166	214	911	660	610	80	80	stage: 5
	46	150		28.5		66	6
	50	145		30.2		65.5	5
DF46-30	27	204	2950	23.6	45	54.5	7	166	231	974	660	610	80	80	stage: 6
	46	180		34.2		66	6
	50	174		36.2		65.5	5

Pump Type	Capacity (m3/h)	head (m)	Speed (r/min)	(kw) Power		Efficiencyη (%)	Hs(m) permiss	D2 (mm)	WeightW (kg)	(mm)Outline dimension			(mm)caliber		Remark
				Shaft Power	Motor power					long	weight	high	imbibe	discharged
DF46-30	27	238	2950	27.6	55	54.5	7	166	248	1037	710	640	80	80	stage: 7
	46	210		40		66	6
	50	202		42		65.5	5
DF46-30	27	272	2950	31.5	55	54.5	7	166	265	1100	710	640	80	80	stage: 8
	46	240		45.8		66	6
	50	232		48.4		65.5	5
DF46-30	27	306	2950	35.4	75	54.5	7	166	282	1163	760	770	80	80	stage: 9
	46	270		51.3		66	6
	50	260		54.2		65.5	5
DF46-30	27	340	2950	39.4	75	54.5	7	166	299	1266	760	770	80	80	stage: 10
	46	300		57		66	6
	50	290		60.4		65.5	5
DF85-45	54	153	2950	36.3	55	62	6.8	200	887	840	740	680	150	150	stage: 3
	85	135		46		68	5.1
	97	126		47.7		70	4.2
DF85-45	54	204	2950	48.4	75	62	6.8	200	1021	914	740	680	150	150	stage: 4
	85	180		61.2		68	5.1
	97	168		63.6		70	4.2
DF85-45	54	255	2950	60.5	90	62	6.8	200	1165	993	740	680	150	150	stage: 5
	85	225		76.7		68	5.1
	97	210		79.7		70	4.2
DF85-45	54	306	2950	72.5	110	62	6.8	200	1696	1067	940	775	150	150	stage: 6
	85	270		91.8		68	5.1
	97	252		95.5		70	4.2
DF85-45	54	357	2950	84.7	132	62	6.8	200	1832	1114	960	775	150	150	stage: 7
	85	315		107.5		68	5.1
	97	294		111		70	4.2
DF85-45	54	408	2950	97	160	62	6.8	200	1958	1215	960	775	150	150	stage: 8
	85	360		122.5		68	5.1
	97	336		127.5		70	4.2
DF85-45	54	459	2950	109	185	62	6.8	200	2225	1289	1080	775	150	150	stage: 9
	85	405		138		68	5.1
	97	378		142.5		70	4.2
DF85-67	55	222	2950	66.6	90	50	6.7	235	846	1407	674	620	150	150	stage: 3
	85	201		75		62	6
	100	183		79.2		63	5.6
DF85-67	55	296	2950	88.8	110	50	6.7	235	964	1495	674	620	150	150	stage: 4
	85	268		100		52	6
	100	244		105.6		63	5.6
DF85-67	55	370	2950	111	160	50	6.7	235	1126	1583	674	620	150	150	stage: 5
	85	335		125		52	6
	100	305		132		63	5.6
DF85-67	55	444	2950	133.2	190	50	6.7	235	1434	1671	674	620	150	150	stage: 6
	85	402		150		52	6
	100	365		158.4		63	5.6
DF85-67	55	518	2950	155.4	190	50	6.7	235	1556	1759	674	620	150	150	stage: 7
	85	469		17		52	6
	100	427		184.8		63	5.6

Pump Type	Capacity (m3/h)	head (m)	Speed (r/min)	(kw) Power		Efficiencyη (%)	Hs(m) permiss	D2(mm)	Weight (kg)	(mm) Outlinedimension			(mm)caliber		Remark
				Shaft Power	Motor power					long	weight	high	imbibe	discharged
DF85-67	55	592	2950	177.6	220	50	6.7	235	1624	1847	674	620	150	150	stage: 8
	85	536		200		52	6
	100	488		211.2		63	5.6
DF85-67	55	666	2950	199.8	250	50	6.7	235	1840	1935	674	620	150	150	stage: 9
	85	603		225		52	6
	100	549		237.6		63	5.6
DFl55-30	119	98.1	1480	43.05	75	74	7.5	305	540	1168	605	630	150	150	stage: 3
	155	92.1		50.4		77	6.9
	190	84		58.06		75	5.8
DFl55-30	119	130.8	1480	57.4	90	74	7.5	305	620	1283	605	630	150	150	stage: 4
	155	122.8		67.2		77	6.9
	190	112		77.42		75	5.8
DFl55-30	119	163.5	1480	71.75	110	74	7.5	305	690	1428	605	630	150	150	stage: 5
	155	152.5		84		77	6.9
	190	140		96.78		75	5.8
DFl55-30	119	196.2	1480	86.1	132	74	7.5	305	770	1543	605	630	150	150	stage: 6
	155	184.2		100.8		77	6.9
	190	168		116.16		75	5.8
DFl55-30	119	228	1480	100.45	160	74	7.5	305	850	1658	605	630	150	150	stage: 7
	155	214.9		117.6		77	6.9
	190	196		135.52		75	5.8
DFl55-30	119	261.6	1480	114.8	190	74	7.5	305	930	1773	605	630	150	150	stage: 8
	155	245		134.4		77	6.9
	190	224		154.88		75	5.8
DFl55-30	119	294.3	1480	129.15	190	74	7.5	305	1010	1888	605	630	150	150	stage: 9
	155	276.3		151.2		77	6.9
	190	252		174.24		75	5.8
DFl55-30	119	327	1480	143.5	220	74	7.5	305	1090	2003	605	630	150	150	stage: 10
	155	307		168.5		77	6.9
	190	280		193.6		75	5.8
DF280-43	168	141	1480	93.6	160	69	7	360	930	1386	737	780	200	200	stage: 3
	280	129		127.8		77	5.5
	336	114		141		74	3.9
DF280-43	168	188	1480	124.8	220	69	7	360	1040	1516	737	780	200	200	stage: 4
	280	172		170.4		77	5.5
	336	152		188		74	3.9
DF280-43	168	235	1480	156	250	69	7	360	1150	1646	737	780	200	200	stage: 5
	280	215		213		77	5.5
	336	190		235		74	3.9
DF280-43	168	282	1480	187.2	320	69	7	360	1260	1776	737	780	200	200	stage: 6
	280	258		255.6		77	5.5
	336	228		282		74	3.9
DF280-43	168	329	1480	218.4	360	69	7	360	1370	1936	737	780	200	200	stage: 7
	280	301		298.2		77	5.5
	336	266		329		74	3.9
DF280-43	168	376	1480	249.6	440	69	7	360	1480	2066	737	780	200	200	stage: 8
	280	344		340.8		77	5.5
	336	304		376		74	3.9
DF280-43	168	423	1480	280.8	440	69	7	360	1590	2196	737	780	200	200	stage: 9
	280	387		383.4		77	5.5
	336	342		432		74	3.9

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