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KBZ
SRM
KBZ submersible slurry pump is a type of centrifugal pump specifically designed to be fully submerged in the fluid it is pumping. Its primary function is to transport slurries—mixtures of water and solid particles such as sand, gravel, coal, sludge, and mine tailings. What sets it apart from other pumps is its robust construction and ability to operate underwater, eliminating the need for priming and reducing the risk of cavitation.
Unlike surface-mounted pumps, which rely on suction to draw fluid, submersible slurry pumps are placed directly in the slurry, pushing the fluid upwards. This design is crucial for applications where the slurry is too thick, abrasive, or deep for traditional pumps to handle effectively. The term "slurry" itself refers to any fluid with a high concentration of suspended solids, and these pumps are the gold standard for moving such challenging media.
made by experienced senior employees.
prevent the water pump from burning out and is durable.
corrosion-resistant and wear-resistant.
corrosion-resistant,wear-resistant and shock-resistant.
operates smoothly and is durable.
meeting the diverse requirements of customers
long-lasting durability.
discharge channel cast as part of the motor housing. Space economically by a top outlet.
achieves superior durability.




MODEL (50HZ) | OUTLET (MM) | POWER (KW) | POWER (HP) | Max flow (M3/H) | Max flow (M3/MIN) | Max head (M) | Impeller Passage (MM) |
KBZ21.5 | 50 | 1.5 | 2 | 27 | 0.45 | 22 | 8.5 |
KBZ31.5 | 80 | 1.5 | 2 | 40 | 0.67 | 14.5 | 8.5 |
KBZ22.2 | 50 | 2.2 | 3 | 33 | 0.55 | 26 | 8.5 |
KBZ32.2 | 80 | 2.2 | 3 | 55 | 0.92 | 19 | 8.5 |
KBZ23.7 | 50 | 3.7 | 5 | 33 | 0.55 | 34 | 8.5 |
KBZ33.7 | 80 | 3.7 | 5 | 55 | 0.92 | 29 | 8.5 |
KBZ43.7 | 100 | 3.7 | 5 | 90 | 1.5 | 18.5 | 8.5 |
KBZ35.5 | 80 | 5.5 | 7.5 | 75 | 1.25 | 34 | 8.5 |
KBZ45.5 | 100 | 5.5 | 7.5 | 105 | 1.75 | 23 | 8.5 |
KBZ47.5 | 100 | 7.5 | 10 | 84 | 1.4 | 40 | 11.5 |
KBZ67.5 | 150 | 7.5 | 10 | 124.8 | 2.08 | 31 | 19.5 |
KBZ411 | 100 | 11 | 15 | 84 | 1.4 | 48.5 | 11.5 |
KBZ611 | 150 | 11 | 15 | 147 | 2.45 | 32 | 19.5 |
KBZ415 | 100 | 15 | 20 | 84 | 1.4 | 56 | 11.5 |
KBZ615 | 150 | 15 | 20 | 156 | 2.6 | 40 | 19.5 |
MODEL (60HZ) | OUTLET (MM) | POWER (KW) | POWER (HP) | Max flow (M3/H) | Max flow (M3/MIN) | Max head (M) | Impeller Passage (MM) |
KBZ21.5 | 50 | 1.5 | 2 | 27 | 0.45 | 23 | 8.5 |
KBZ31.5 | 80 | 1.5 | 2 | 45 | 0.75 | 15 | 8.5 |
KBZ22.2 | 50 | 2.2 | 3 | 31 | 0.52 | 28 | 8.5 |
KBZ32.2 | 80 | 2.2 | 3 | 47 | 0.78 | 20.5 | 8.5 |
KBZ23.7 | 50 | 3.7 | 5 | 50 | 0.83 | 33 | 8.5 |
KBZ33.7 | 80 | 3.7 | 5 | 55 | 0.92 | 31 | 8.5 |
KBZ43.7 | 100 | 3.7 | 5 | 96 | 1.6 | 18.5 | 8.5 |
KBZ35.5 | 80 | 5.5 | 7.5 | 69 | 1.15 | 38 | 8.5 |
KBZ45.5 | 100 | 5.5 | 7.5 | 102 | 1.7 | 24.4 | 8.5 |
KBZ47.5 | 100 | 7.5 | 10 | 80 | 1.33 | 41 | 11.5 |
KBZ47.5 | 150 | 7.5 | 10 | 127 | 2.12 | 31 | 19.5 |
KBZ411 | 100 | 11 | 15 | 84 | 1.4 | 48.5 | 11.5 |
KBZ611 | 150 | 11 | 15 | 147 | 2.45 | 32 | 19.5 |
KBZ415 | 100 | 15 | 20 | 84 | 1.4 | 57 | 11.5 |
KBZ615 | 150 | 15 | 20 | 160 | 2.67 | 39 | 19.5 |
MODEL (50/60HZ) | NW (KG) | GW (KG) | Packing dimension (MM) |
KBZ21.5 | 36 | 40 | 590*290*260 |
KBZ31.5 | 36 | 40 | 590*290*260 |
KBZ22.2 | 39 | 43 | 590*290*260 |
KBZ32.2 | 39 | 43 | 590*290*260 |
KBZ23.7 | 63 | 68 | 690*340*330 |
KBZ33.7 | 63 | 68 | 690*340*330 |
KBZ43.7 | 63 | 68 | 690*340*330 |
KBZ35.5 | 77 | 84 | 740*370*380 |
KBZ45.5 | 77 | 84 | 740*370*380 |
KBZ47.5 | 106 | 116 | 810*370*410 |
KBZ67.5 | 108 | 119 | 860*430*450 |
KBZ411 | 136 | 148 | 840*370*410 |
KBZ611 | 139 | 150 | 860*430*450 |
KBZ415 | 144 | 158 | 890*430*450 |
KBZ615 | 146 | 160 | 890*430*450 |
A submersible slurry pump is a type of centrifugal pump specifically designed to be fully submerged in the fluid it is pumping. Its primary function is to transport slurries—mixtures of water and solid particles such as sand, gravel, coal, sludge, and mine tailings. What sets it apart from other pumps is its robust construction and ability to operate underwater, eliminating the need for priming and reducing the risk of cavitation.
Submersible slurry pumps are indispensable in a wide range of industries:
Civil Engineering & Construction:
◦ Dewatering deep excavations and foundation pits.
◦ Pumping sand, gravel, and slurry during tunneling and pipe-laying projects.
Mining & Quarrying:
◦ Transporting coal slurry, copper ore, and iron ore from the mine face to processing plants.
◦ Handling tailings, the waste material left after mineral extraction.
Dredging:
◦ Maintaining navigation channels by removing silt and sand.
◦ Reclaiming land from the sea or lakes.
Environmental Management:
◦ Remediating contaminated sites by pumping out polluted groundwater and sludge.
◦ Managing industrial waste and sludge from power plants and factories.
A brand-new all-copper motor :
made by experienced senior employees.
A thermal protector:
prevent the water pump from burning out and is durable.
Thickened cables:
corrosion-resistant and wear-resistant.
Thickened pump casing:
corrosion-resistant,wear-resistant and shock-resistant.
High-quality bearings:
operates smoothly and is durable.
Customizable voltage and cable length:
meeting the diverse requirements of customers
Rigid cast iron motor and pump:
long-lasting durability.
Effective motor cooling:
discharge channel cast as part of the motor housing. Space economically by a top outlet.
Semi-open impeller(High chrome alloy) and wear plate(ductile iron):
achieves superior durability.

①Do not plug in the power supply before installation.
②The working state of the water pump should be below the entire horizontal plane. Otherwise, it may cause the water pump to burn out.


A: No. Running a submersible slurry pump dry is extremely damaging. The motor relies on the surrounding fluid for cooling, and the seals require lubrication from the pumped medium. Dry running will lead to overheating and seal failure.
A: The primary difference is in their construction. Slurry pumps are built with heavy-duty, wear-resistant materials to handle abrasive solids. Water pumps are designed for clear fluids and would quickly fail if used to pump slurry.
A: This varies by model. The KBS series, for example, can operate at a maximum submersion depth of 15 meters. High-pressure models are available for deeper applications, sometimes exceeding 100 meters.
A: The best way to prevent clogging is to use a pump with an agitator, like the KBS series, which breaks up settled solids. Additionally, ensure the suction strainer is clear and the slurry is properly agitated before pumping. Avoid pumping large, foreign objects.
A: The lifespan depends heavily on the application and maintenance. In a moderately abrasive environment with proper care, a pump can last 5-10 years. In highly abrasive mining applications, major components may need to be replaced every 1-2 years.
With over 40 years of expertise in professional pump manufacturing,SRM Group--a Top 500 Enterprise in China-stands out for its:
Mature Production System- Rigorous quality control ensures reliable, high-performance pumps.
Customer-Centric Approach - We customize solutions to meet specific needs.
End-to-End Support- Beyond a 1-year warranty,we provide ongoing service assistance.
Choose SRM for durable, tailored pumping solutions backed by decades of industry leadership.
Purchasing SRM pumps is simple:
Contact Us-Visit our website and reach out via:
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(A dedicated representative will assist you promptly.)
Custom Branding Option - We support OEM/ODM services and can produce pumps with your logo, provided you:
Own the trademark
OR
Have authorization from the trademark owner.
200 pieces.
The more the quantity, the greater the discount.

