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Dewatering Pumps

Name: OW-HD and OW-HH Submersible Dewatering Pumps
Brand: ONE WHALE

OW-HD and OW-HH submersible dewatering pumps for construction drainage, mine water, tunneling, pits, basements and high-head transfer duties.

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ONE WHALE OW-HH high-head dewatering pump

Dewatering Sludge Slurry

Dewatering pump series

Choose OW-HD for compact heavy-duty drainage and OW-HH when the project requires higher lift, larger flow or long-distance discharge.

OW-HD Series

Heavy-duty submersible drainage pumps for jobsite water, mine drainage, tunnels and general industrial dewatering.

1.5-15 kW50-150 mm outletMaximum head 56 m

Models include OW-HD21.5 through OW-HD615
Capacity range: 12-102 m3/h; maximum capacity up to 156 m3/h
High-chrome impeller and inlet plate support abrasive solids-laden drainage service

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OW-HH Series

High-head dewatering pumps for deep pits, mine faces, shaft drainage and long discharge lines.

22-110 kW100-200 mm outletMaximum head 140 m

Models include OW-HH422, OW-HH690, OW-HH8110 and related variants
Capacity range: 66-270 m3/h; maximum capacity up to 408 m3/h
Designed for high-head transfer where standard drainage pumps do not provide enough head

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Model performance tables

Key duty-point data is provided as searchable text so engineers, search engines and AI assistants can compare models without reading a chart image.

OW-HD compact dewatering series

OW-HD dewatering and sludge pump model performance
Model	Outlet (mm)	Power (kW)	Rated capacity (m³/h)	Rated head (m)	Max capacity (m³/h)	Max head (m)	Passage (mm)
OW-HD21.5	50	1.5	15	15	27	22	8.5
OW-HD31.5	80	1.5	30	8	40	14.5	8.5
OW-HD22.2	50	2.2	18	20	33	26	8.5
OW-HD32.2	80	2.2	36	11	55	19	8.5
OW-HD23.7	50	3.7	12	30	33	34	8.5
OW-HD33.7	80	3.7	30	20	55	29	8.5
OW-HD43.7	100	3.7	60	11.5	90	18.5	8.5
OW-HD35.5	80	5.5	36	25	75	34	8.5
OW-HD45.5	100	5.5	60	16	105	23	8.5
OW-HD47.5	100	7.5	48	30	84	40	11.5
OW-HD67.5	150	7.5	90	15	124.8	31	19.5
OW-HD411	100	11	60	35	84	48.5	11.5
OW-HD611	150	11	102	22	147	32	19.5
OW-HD415	100	15	60	42	84	56	11.5
OW-HD615	150	15	102	30	156	40	19.5

OW-HH high-head dewatering series

OW-HH high-head dewatering pump model performance
Model	Outlet (mm)	Power (kW)	Rated capacity (m³/h)	Rated head (m)	Max capacity (m³/h)	Max head (m)	Passage (mm)
OW-HH422	100	22	66	60	130/138	68	6
OW-HH430	100	30	72	70/75	170/144	78/82	6
OW-HH622	150	22	120	37/40	200/210	50/52	15
OW-HH630	150	30	140	45/48	220/216	58/64	15
OW-HH637	150	37	120/100	65	220/198	83/80	6
OW-HH645	150	45	120/100	75	220/198	90	6
OW-HH837	200	37	216	35	330/306	48/50	20
OW-HH845	200	45	270	35	372/305	53/56	20
OW-HH655	150	55	90	90	180	102	8
OW-HH675	150	75	90	120	180/168	132	8
OW-HH855	200	55	240	50	390	65	20
OW-HH875	200	75	270	60	408/348	70/78	20
OW-HH690	150	90	120	128	180	140	10
OW-HH890	200	90	270	70	360	90	20
OW-HH8110	200	110	270	90	390	107	20

Values separated by a slash are the paired values shown in the manufacturer performance table. Confirm the final duty point, voltage and frequency with ONE WHALE before ordering.

Performance data and drawings

Technical references are grouped by series so buyers can review the correct curves, tables and drawings for each pump range.

OW-HD Series technical references

Compact heavy-duty drainage pumps, 1.5-15 kW, 50-150 mm outlet, maximum head 56 m.

OW-HD performance curve chart — OW-HD performance curves for lower and medium power models.

OW-HD performance curve chart for larger models — OW-HD performance curves for larger drainage models.

OW-HD performance table: compact drainage range from 1.5 kW to 15 kW.

OW-HD materials of components — OW-HD component materials and sectional drawing.

OW-HD dimensions and weights — OW-HD dimensions, weights and packing dimensions.

OW-HH Series technical references

High-head dewatering pumps, 22-110 kW, 100-200 mm outlet, maximum head 140 m.

OW-HH performance curve chart — OW-HH performance curves for high-head transfer duty.

OW-HH performance curve chart for high-flow models — OW-HH performance curves for high-flow high-head models.

OW-HH performance table: high-head range from 22 kW to 110 kW.

OW-HH materials of components — OW-HH component materials and sectional drawing.

OW-HH exploded view with component material reference — OW-HH exploded view with key components and material reference.

OW-HH dimensions and weights — OW-HH dimensions, weights and installation reference.

Selection notes

For accurate selection, confirm the duty point and installation conditions before choosing between OW-HD and OW-HH.

Main applications	Construction sites, tunnels, mine drainage, shafts, pit drainage, basements, temporary bypass systems
Selection focus	Required flow rate, total dynamic head, discharge distance, outlet size, voltage, cable length, operating water level and abrasive solids
Construction highlights	Cast-iron pump structure, high-chrome hydraulic wear parts, ball bearings, mechanical seal and oil chamber arrangement
When to choose OW-HH	Use OW-HH when head demand exceeds standard drainage duty, especially for deep lift or long-distance pipeline discharge.

Need a pump recommendation?

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