High Flow Magnetic Drive Pump MDH Series

Material	PPH / PVDF / CFRETFE
Flow	100-750 L/min (6.0-45.0 m3/h)
Head	12-32.5 m
Temperature	-10~120 C
Power	1/2HP-5HP
Flow Range	10-50 m3/h
Head Range	20-50 m
Material Type	Corrosion-resistant plastic
Temperature Range	Standard temperature up to 120 C
Self Priming	N

Product Description

MDH Series is a high-flow corrosion-resistant magnetic drive pump for acid and alkali circulation systems that need sealless operation and stable performance. The wetted parts can be configured in PPH, PVDF, and CFRETFE, making the series suitable for corrosive chemical transfer, PCB wet processing, electroplating, surface treatment, and exhaust-gas cleaning circulation.

The no-shaft-seal magnetic drive structure helps reduce leakage risk, while the product sheet notes optional protection for dry running, overload, and phase loss to improve service life. With 100-750 L/min flow and 12-32.5 m head coverage, MDH fits medium to high-flow corrosive circulation duties where material compatibility and operating conditions must be confirmed before selection.

Parameter Table

Frequency

Flow

Head

Model Number	Inlet/Outlet (mm)	50Hz Flow (L/min)	50Hz Flow (m3/h)	60Hz Flow (L/min)	60Hz Flow (m3/h)	50Hz Head (m)	60Hz Head (m)	Specific Gravity	Power (HP)	Power (kW)	Weight (kg)
MDH-250	25/25	100	6	100	6	16	17	<1.2	0.5	0.37	11.7
MDH-251	25/25	125	7.5	125	7.5	22	24	<1.2	1	0.75	15.6
MDH-440	40/40	230	13.8	200	12	13	12	<1.2	0.5	0.37	12
MDH-441	40/40	233	14	250	15	16.5	18	<1.2	1	0.75	17.8
MDH-452	50/40	366	22	366	22	22	22	<1.2	2	1.5	29.2
MDH-453	50/40	433	26	450	27	23.5	25	<1.2	3	2.2	29.5
MDH-455	50/40	466	28	533	32	26.5	32.5	<1.2	5	4	29.4
MDH-552	50/50	441	26.5	465	27.9	24.5	22	<1.2	2	1.5	29.7
MDH-553	50/50	533	32	563	33.8	25	26.5	<1.2	3	2.2	44.8
MDH-555	50/50	600	36	666	40	27	32.5	<1.2	5	4	45.4
MDH-563	65/50	600	36	600	36	17	17.5	<1.2	3	2.2	29.4
MDH-565	65/50	700	42	700	42	24	25	<1.2	5	4	45
MDH-663	65/65	625	37.5	635	37.5	13.5	17	<1.2	3	2.2	29.7
MDH-665	65/65	750	45	708	42.5	20.5	20.5	<1.2	5	4	45.5

Flow Flow Unit Head Head Unit

QMC/QMP stainless steel magnetic pump data from the product sheet. Select a model with capacity not smaller than the required duty point.

Model Number	Flow Range (m3/h)	Head Range (m)	Efficiency (%)	Inlet (mm)	Outlet (mm)	NPSH (m)	Power (kW)	Weight (kg)
QMC/QMP25-20-125	1.5 / 2 / 3.2	22 / 20 / 18	24	25	20	2.0	0.75	55
QMC/QMP25-20-160	1.5 / 2 / 3.2	33 / 32 / 30	22	25	20	2.0	1.1	60
QMC/QMP25-20-200	1.5 / 2 / 3.2	51 / 50 / 47	20	25	20	2.0	2.2	85
QMC/QMP32-20-125	2.5 / 3.6 / 5	22 / 20 / 18	19	32	20	2.0	1.1	60
QMC/QMP32-20-160	2.5 / 3.6 / 5	33 / 32 / 30	27	32	20	2.0	1.5	70
QMC/QMP32-20-200	2.5 / 3.6 / 5	51 / 50 / 47	24	32	20	2.5	3	100
QMC/QMP40-25-125	4 / 6.3 / 7.5	21 / 20 / 18	36	40	25	2.5	1.5	65
QMC/QMP40-25-160	4 / 6.3 / 7.5	33 / 32 / 28	33	40	25	2.5	2.2	75
QMC/QMP40-25-200	4 / 6.3 / 7.5	51 / 50 / 47	29	40	25	2.5	5.5	120
QMC/QMP40-25-250	4 / 6.3 / 7.5	81 / 80 / 78	25	40	25	2.5	7.5	165
QMC/QMP50-32-125	7 / 12.5 / 15	22 / 20 / 16	47	50	32	2.5	2.2	70
QMC/QMP50-32-160	7 / 12.5 / 15	33 / 32 / 30	43	50	32	2.5	4	120
QMC/QMP50-32-200	7 / 12.5 / 15	51 / 50 / 47	40	50	32	2.5	7.5	155
QMC/QMP50-32-250	7 / 12.5 / 15	82 / 80 / 77	35	50	32	2.5	11	220
QMC/QMP65-50-125	15 / 25 / 35	22 / 20 / 18	58	65	50	2.5	3	85
QMC/QMP65-50-160	15 / 25 / 35	33 / 32 / 28	50	65	50	2.5	5.5	135
QMC/QMP65-40-200	15 / 25 / 35	51 / 50 / 45	45	65	40	2.5	11	190
QMC/QMP65-40-250	15 / 25 / 35	82 / 80 / 72	40	65	40	2.5	15	250
QMC/QMP80-65-125	35 / 50 / 60	22 / 20 / 18	54	80	65	3.0	5.5	105
QMC/QMP80-65-160	35 / 50 / 60	33 / 32 / 27	52	80	65	3.0	11	170
QMC/QMP80-50-200	35 / 50 / 60	52 / 50 / 45	46	80	50	3.0	15	210
QMC/QMP80-50-250	35 / 50 / 60	82 / 80 / 75	43	80	50	3.5	30	360
QMC/QMP100-80-125	65 / 100 / 110	22 / 20 / 18	63	100	80	3.5	11	175
QMC/QMP100-80-160	65 / 100 / 120	35 / 32 / 26	50	100	80	3.5	15	215
QMC/QMP100-65-200	65 / 100 / 120	51 / 50 / 43	46	100	65	3.5	30	350
QMC/QMP125-80-160	100 / 160 / 180	38 / 32 / 26	60	125	80	4.0	30	410
QMC/QMP125-100-200	120 / 200 / 220	55 / 50 / 45	55	125	100	4.5	55	590

Frequency Flow Flow Unit Head Head Unit

QHM model data from the corrosion-resistant magnetic drive pump sheet. Use frequency, flow and head together for preliminary selection.

Model Number	Material	50Hz Flow (L/min)	50Hz Flow (m3/h)	60Hz Flow (L/min)	60Hz Flow (m3/h)	50Hz Head (m)	60Hz Head (m)	Specific Gravity
QHM-250	PPH / PVDF / CFRETFE	92	5.5	100	6	15	17	<1.2
QHM-251	PPH / PVDF / CFRETFE	117	7	122	7.3	20	24	<1.2
QHM-440	PPH / PVDF / CFRETFE	223	13.4	220	13.2	12	11	<1.2
QHM-441	PPH / PVDF / CFRETFE	243	14.6	265	15.9	17	18	<1.2
QHM-452	PPH / PVDF / CFRETFE	373	22.4	378	22.7	23	22	<1.2
QHM-453	PPH / PVDF / CFRETFE	418	25.1	462	27.7	24	25	<1.2
QHM-455	PPH / PVDF / CFRETFE	480	28.8	538	32.3	27	35	<1.2
QHM-552	PPH / PVDF / CFRETFE	457	27.4	487	29.2	23	22	<1.2
QHM-553	PPH / PVDF / CFRETFE	558	33.5	598	35.9	25	25	<1.2
QHM-555	PPH / PVDF / CFRETFE	645	38.7	707	42.4	27	33	<1.2
QHM-563	PPH / PVDF / CFRETFE	637	38.2	637	38.2	16.5	16.5	<1.2
QHM-565	PPH / PVDF / CFRETFE	818	49.1	805	48.3	24	24.5	<1.2
QHM-663	PPH / PVDF / CFRETFE	897	53.8	840	50.4	16	17	<1.2
QHM-665	PPH / PVDF / CFRETFE	1037	62.2	1055	63.3	21	22	<1.2

Frequency Flow Flow Unit Head Head Unit

QHB product sheet data. Use frequency, flow and head together for preliminary selection, then confirm liquid specific gravity and material compatibility.

Model Number	Inlet/Outlet (mm)	50Hz Flow (L/min)	50Hz Flow (m3/h)	60Hz Flow (L/min)	60Hz Flow (m3/h)	50Hz Head (m)	60Hz Head (m)	Priming Head (m)	Specific Gravity	Power (HP)	Power (kW)	Weight (kg)
QHB-40002	40/40	188	11.3	170	10.2	7	6	4	<1.2	1/2	0.37	20.6
QHB-40012	40/40	216	13	208	12.5	9	8	5	<1.2	1	0.75	23.4
QHB-40022	40/40	308	18.5	303	18.2	16	16	5	<1.2	2	1.5	29
QHB-40032	40/40	355	21.3	342	20.5	19	18	5	<1.2	3	2.2	30.5
QHB-50032	50/50	488	29.3	482	28.9	17	18	5	<1.2	3	2.2	30.8
QHB-50052	50/50	507	30.4	538	32.3	24	27	5	<1.2	5	4	42.3
QHB-75052	75/75	935	56.1	928	55.7	22	22	5	<1.2	5	4	44.1
QHB-75072	75/75	970	58.2	950	57	27	29	5	<1.2	7.5	5.5	64.1
QHB-75102	75/75	1007	60.4	1002	60.1	28	35	5	<1.2	10	7.5	68.6

Item / Model	QHF-10230-1	QHF-20370-3	QHF-30370-5
Filtration Capacity (L/min)	166	333	500
Filtration Capacity (m³/h)	10	20	30
Filter Barrel Material	PP	PP	PP
Number of Disc Papers	Φ240 × 34 pcs	Φ368 × 36 pcs	Φ370 × 42 pcs
Applicable Temperature (°C)	0–70	0–70	0–70
Pump Power	0.75 kW	2.2 kW	4 kW
Frame Length A (mm)	950	1170	1170
Frame Width B (mm)	550	600	600
Total Height (mm)	1410	1410	1500
Inlet / Outlet Caliber	40 / 40	50 / 50	65 / 50

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Filtration Capacity Finder

CapacityUnit

ITEM / MODEL	QH-1001	QH-1002	QH-1004	QH-2001	QH-2002	QH-2004	QH-2006-1/2	QH-2006-1	QH-2008-1	QH-2008-2	QH-2012-2	QH-2018-3	QH-3018-5
Suitable For Tank (tons)	0.2	0.4	0.6	0.4	0.6	0.8	1-2	1-2	1-2	1.5-3	2.5-4	4-6.5	6.5-7.5
Filtration Capacity (L/min)	26	28	63	30	58	80	203	233	258	336	418	523	733
Filtration Capacity (m³/h)	1.6	1.7	3.8	1.8	3.5	4.8	12.2	14	15.5	20.2	25.1	31.4	44
Filter Barrel Material	PPH	PPH	PPH	PPH	PPH	PPH	PPH	PPH	PPH	PPH	PPH	PPH	PPH
Cartridge (Size x Quantity)	10" x1	10" x2	10" x4	20" x1	20" x2	20" x4	20" x6	20" x6	20" x8	20" x8	20" x12	20" x18	30" x18
Filter Paper (Size x Quantity)	/	/	/	/	/	/	Φ230 x36	Φ230 x36	Φ230 x36	Φ230 x36	Φ300 x36	Φ370 x36	Φ370 x44
Bag Type Pcs (Set)	/	/	1	/	/	1	1	1	1	1	1	1	1
Applicable Temperature (°C)	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70
Pump Power	45W	65W	180W	65W	180W	260W	0.37KW	0.75KW	0.75KW	1.5KW	1.5KW	2.2KW	4KW
Frame Length A (mm)	515	610	610	515	610	610	758	758	758	758	820	820	820
Frame Width B (mm)	312	383	383	312	383	383	447	447	447	447	587	587	587
Total Height (mm)	818	928	928	1011	1110	1110	1440	1440	1445	1445	1440	1449	1705
Body Weight (KG)	11.7	16.5	21.4	12.7	21.5	23.1	49.2	58	58	65	80.7	87.4	133.5
Inlet / Outlet Caliber	20/20	20/20	25/25	20/20	25/25	25/25	40/40	40/40	40/40	50/40	50/50	50/50	65/50

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Filtration Capacity Finder

CapacityUnit

ITEM / MODEL	QL-1001	QL-1002	QL-1004	QL-2001	QL-2002	QL-2004	QL-2006	QL-2008	QL-2012	QL-2018	QL-3018
Applicable Electroplating Tank Volume (ton)	0.2	0.4	0.6	0.4	0.6	0.8	1-2	1-3	2.5-4	4-6.5	6.5-7.5
Cartridge Filtration Capacity (L/min)	26	28	63	30	58	80	203/233	258/336	418	523	733
Cartridge Filtration Capacity (m³/h)	1.6	1.7	3.8	1.8	3.5	4.8	12.2/14	15.5/20.2	25.1	31.4	44
Material Of Filter Housing	PP	PP	PP	PP	PP	PP	PP	PP	PP	PP	PP
Filter Cartridge (Size x Quantity)	10" x1	10" x2	10" x4	20" x1	20" x2	20" x4	20" x6	20" x8	20" x12	20" x18	30" x18
Filter Paper (Size x Quantity)	/	/	/	/	/	/	Φ230 x36	Φ230 x36	Φ300 x36	Φ370 x36	Φ370 x44
Filter Bag (Pieces)	/	/	1	/	/	1	1	1	1	1	1
Applicable Temperature (°C)	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70	0-70
Inlet / Outlet Caliber (DN)	20/20	20/20	25/25	20/20	25/25	25/25	40/40	40/40	50/50	50/50	65/50
Weight (KG)	8.6	13.3	15.3	9.5	15.4	16.5	33.7	42.6	54.9	69.1	80.4

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ITEM / MODEL	QHC-1004	QHC-2004	QHC-2006-1	QHC-2008-2	QHC-2012-2	QHC-2018-3
Suitable For Tank (tons)	0.6	0.8	1-2	1.5-3	2.5-4	4-6.5
Filtration Capacity (L/min)	60	80	150	220	250	330
Filtration Capacity (m³/h)	3.6	4.8	9	13.2	15	19.8
Filter Barrel Material	PPH	PPH	PPH	PPH	PPH	PPH
Cartridge (Size x Quantity)	10" x4	20" x4	20" x6	20" x8	20" x12	20" x18
Applicable Temperature (°C)	0-70	0-70	0-70	0-70	0-70	0-70
Pump Power	250W	0.37KW	0.75KW	1.5KW	1.5KW	2.2KW
Inlet / Outlet Caliber	25/25	25/25	50/40	50/40	50/40	65/50

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Filtration Capacity Finder

CapacityUnit

ITEM / MODEL	QHU-B-1-10	QHU-B-3-20	QHU-B-5-20	QHU-B-7-20	QHU-B-9-20	QHU-B-12-20	QHU-B-18-20	QHU-B-24-20
Filtration Capacity (L/min)	8	50	83	116	150	200	300	400
Filtration Capacity (m³/h)	0.5	3	5	7	9	12	18	24
Cartridge (Size x Quantity)	10" x1	20" x3	20" x5	20" x7	20" x9	20" x12	20" x18	20" x24
Design Temperature	0-80°C	0-80°C	0-80°C	0-80°C	0-80°C	0-80°C	0-80°C	0-80°C
Inlet / Outlet Caliber	32/32 Internal Thread	25/25	50/50	50/50	65/65	65/65	80/80	80/80
Filter Barrel Material	SUS304 / SUS316L	SUS304 / SUS316L	SUS304 / SUS316L	SUS304 / SUS316L	SUS304 / SUS316L	SUS304 / SUS316L	SUS304 / SUS316L	SUS304 / SUS316L
Surface Treatment	Electrochemical Polishing	Electrochemical Polishing	Electrochemical Polishing	Electrochemical Polishing	Electrochemical Polishing	Electrochemical Polishing	Electrochemical Polishing	Electrochemical Polishing

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Model	Rated Flow		Rated Head (m)	Inlet & Outlet (mm)	Reference S.G Range	Power		Weight (kg)
Model	(L/min)	(m?/h)	Rated Head (m)	Inlet & Outlet (mm)	Reference S.G Range	HP	kW	Weight (kg)
QBF25-20-125	33	2	20	25*20	< 1.2	1.5	1.1	35
QBF25-20-160	33	2	32	25*20	< 1.2	1.5	1.1	40
QBF25-20-200	33	2	50	25*20	< 1.2	3	2.2	65
QBF32-20-125	60	4	20	32*20	< 1.2	1.5	1.1	40
QBF32-20-160	60	4	32	32*20	< 1.2	2	1.5	50
QBF32-20-200	60	4	50	32*20	< 1.2	4	3	70
QBF40-25-125	105	6	20	40*25	< 1.2	2	1.5	45
QBF40-25-160	105	6	32	40*25	< 1.2	3	2.2	50
QBF40-25-200	105	6	50	40*25	< 1.2	7.5	5.5	90
QBF40-25-250	105	6	80	40*25	< 1.2	15	11	/
QBF50-32-125	208	13	20	50*32	< 1.2	3	2.2	50
QBF50-32-160	208	13	32	50*32	< 1.2	5.5	4	90
QBF50-32-200	208	13	50	50*32	< 1.2	10	7.5	125
QBF50-32-250	208	13	50	50*32	< 1.2	15	11	/
QBF65-50-125	417	25	20	65*50	< 1.2	5.5	4	90
QBF65-50-160	417	25	32	65*50	< 1.2	7.5	5.5	105
QBF65-40-200	417	25	50	65*40	< 1.2	15	11	160
QBF65-40-250	417	25	80	65*40	< 1.2	25	18.5	230
QBF80-65-125	833	50	20	80*65	< 1.2	7.5	5.5	80
QBF80-65-160	833	50	32	80*65	< 1.2	15	11	135
QBF80-50-200	833	50	50	80*50	< 1.2	25	18.5	190
QBF100-80-125	1667	100	20	100*80	< 1.2	15	11	140
QBF100-80-160	1667	100	32	100*80	< 1.2	25	18.5	195
QBF125-80-160	2667	160	30	125*80	< 1.2	40	30	340
QBF150-125-250	3333	200	20	150*125	< 1.2	30	22-4P	480