KBZ Series 400V 1.5 to 15KW 25M Depth Submersible Drainage Pump for Civil Engineering
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The KBZ submersible slurry pump features a rigid cast iron body for exceptional durability, a high-chrome alloy semi-open impeller with wear plates for superior abrasion resistance, and a top outlet design for space efficiency. Equipped with a hermetically sealed motor and thermal protection, it is ideal for pumping coal ore, slurries, and wastewater in civil engineering, mining, and sewage treatment applications.
Application :
Civil engineering: It provides reliable dewatering and slurry pumping support for civil engineering projects, efficiently handling muddy water, bentonite mixtures, and construction slurry to maintain dry working conditions in foundation pits, tunnels, and other underground works, ensuring smooth project progress.
Mines, quarries, and coal ore operations: Specially designed for harsh mining environments, it can effectively transport coal ore slurries, mine wastewater, and abrasive quarry slurries. Its built-in agitator and high-chrome alloy impeller ensure continuous operation even when dealing with high-solid-content and highly abrasive fluids.
Sewage treatment plants: It plays a critical role in sewage treatment facilities, reliably pumping sludge, mud-containing liquids, and other thick wastewater. The pump’s robust design prevents clogging and supports stable operation in sludge lifting, thickening, and transfer processes.
General pumping purposes: Beyond specialized industries, it serves as a versatile solution for various heavy-duty pumping needs, including emergency flood drainage of muddy water, industrial slurry transfer, and temporary dewatering tasks, offering flexible and reliable performance for diverse fluid management scenarios.
Water temperature : up to 40℃
Max. water depth : 25m
Capacity : up to 160 m³/h
Head : up to 57m
Insulation class : F
Protection class : IP68
Cable length : 8m
Intelligent model
Other voltages
The length of cable is optional
(according to our general sales conditions)
Components and Materials :

|
NO. |
Name |
Material |
|
01 |
Hose coupling |
Cast iron |
|
02 |
Handle |
Rubber&steel |
|
05 |
Upper cover |
Cast iron |
|
11 |
Motor body |
Cast iron |
|
13 |
Pump body |
Cast iron |
|
14 |
Impeller |
High chrome alloy |
|
16 |
Inlet Plate |
Ductile iron |
|
25 |
Strainer |
Steel |
|
27 |
Stator |
|
|
28 |
Rotor |
Shaft : AISI420SS |
|
31a |
Bearing |
Ball bearing |
|
31b |
Bearing |
Ball bearing |
|
33 |
Motor protector |
|
|
34 |
Mechanical seal |
Sic-Sic / Carbon-Sic ( ≤2.2kW ) |
|
Sic-Sic / Sic-Sic ( ≥ 3.7kW ) |
||
|
35 |
Oil seal |
|
|
47 |
Cable |
|

| Model | Motor power (kw/HP) |
Outlet (mm) |
Voltage (V) |
Max Flow (m³/h) |
Max.Head (m) |
Impeller passage (mm) |
G.W. (kg) |
Dimensions (cm) |
| KBZ21.5 | 1.5/2 | 50 | 400 | 27 | 22 | 8.5 | 40 | 61.0×26.5×27.5 |
| KBZ31.5 | 1.5/2 | 80 | 400 | 40 | 14.5 | 8.5 | 40 | 61.0×26.5×27.5 |
| KBZ22.2 | 2.2/3 | 50 | 400 | 33 | 26 | 8.5 | 43 | 61.0×26.5×27.5 |
| KBZ32.2 | 2.2/3 | 80 | 400 | 55 | 19 | 6.5 | 43 | 61.0×26.5×27.5 |
| KBZ23.7 | 3.7/5 | 50 | 400 | 33 | 34 | B.5 | 68 | 71.0×32.0×29.5 |
| KBZ33.7 | 3.7/5 | 80 | 400 | 55 | 29 | 8.5 | 68 | 71 0×32.0×29.5 |
| KBZ43.7 | 3.7/5 | 100 | 400 | 90 | 18.5 | 8.5 | 68 | 71.0×32.0×29.5 |
| KBZ35.5 | 5.5/7.5 | 80 | 400 | 75 | 34 | 8.5 | 84 | 75.0×35.0×33.5 |
| KBZ45.5 | 5.5/7.5 | 100 | 400 | 105 | 23 | 8.5 | 84 | 75.0×35.0×33.5 |
| KBZ47.5 | 7.5/10 | 100 | 400 | 84 | 40 | 11.5 | 116 | 83.5×36.5×38.5 |
| KBZ67 5 | 7.5/10 | 150 | 400 | 124.8 | 31 | 19.5 | 119 | 86.5×36.5×38.5 |
| KBZ411 | 11/15 | 100 | 400 | 84 | 48.5 | 11.5 | 148 | 85.5×41.5×43.5 |
| KBZ611 | 11/15 | 150 | 400 | 147 | 32 | 19.5 | 150 | 85.5×41.5×43.5 |
| KBZ415 | 15/20 | 100 | 400 | 84 | 56 | 11.5 | 158 | 90.5×41.5×43.5 |
| KBZ615 | 15/20 | 150 | 400 | 156 | 40 | 19.5 | 160 | 90.5×41.5×43.5 |
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