KBS Submersible Drainage Dewatering Slurry Pump

KBS Submersible Drainage Dewatering Slurry Pump - Image 3

Description

TUSSU®KBS Series is a heavy-duty, submersible slurry pump designed specifically to handle highly abrasive, dense, and challenging mediums. Combining robust metallurgy, integrated agitation, and an efficient motor cooling configuration, the KBS series stands as an industry benchmark for sand, sludge, and slurry management in municipal, industrial, and mining operations

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Specification

Capacity: up to 360 m3/h
Head: up to 32 meters
Power:4kW(5.5HP) to 22 kW (30HP)
Power supply: 380V ± 10%, 50Hz or 60Hz
Insulation class: F
Protection class: IP68
Water temperature: up to 40℃
water depth: 15m

Advantages

Integrated Agitator Technology

Unlike standard drainage pumps that only pump sitting water, the KBS features a built-in high-chrome agitator mounted directly on the shaft extension below the suction inlet. The agitator forcefully mixes settled solids (such as sand, sludge, or bentonite) with the surrounding fluid, creating a homogenous slurry that the impeller can easily evacuate.

Premium Sealing Matrix

To prevent fluid ingress into the motor housing—the leading cause of submersible pump failure—the KBS series is equipped with a dual-stage sealing framework:

Dual Silicon Carbide (SiC-SiC) Mechanical Seals: Positioned in an isolated oil chamber, providing a frictionless, highly wear-resistant barrier.
Upgraded Secondary Seals: For high-power configurations ( $>15\text{ kW}$ ), Tungsten Carbide-to-Silicon Carbide (Tc-Sic/Sic-Sic) seals are used to withstand heightened back-pressures.

Top-Discharge & Slim-Line Design

The top-discharge configuration forces the pumped slurry to flow upwards between the outer pump jacket and the motor housing. This continuous fluid jacket provides a natural cooling mechanism for the motor, allowing the pump to safely operate even when only partially submerged or running dry intermittently.

Applications

Civil Engineering & Construction: Pumping bentonite slurry, piling mud, and dewatering foundation pits containing heavy silt.
Mining & Mineral Processing: Tailings management, clearing settling ponds, and transferring abrasive mineral matrices.
Dredging & Port Maintenance: Clearing accumulated sand, gravel, and mud from harbors, canals, and riverbeds.
Industrial Waste Treatment: Cleaning out scale pits in steel mills, fly ash ponds in power plants, and chemical sludge collection tanks.

Maintenance and Operation Guidelines

To maximize the operational lifespan of a KBS Submersible Slurry Pump, operators should adhere to the following best practices:

Rotation Verification: Ensure the pump rotates in the correct direction (indicated by the arrow on the casing) prior to full deployment.
Oil Chamber Checks: Periodically inspect and replace the oil in the mechanical seal chamber to detect early signs of moisture ingress.
Clearance Adjustment: As the high-chrome inlet plate and impeller wear down over years of abrasive use, adjust the suction gap clearance to maintain optimal hydraulic efficiency.

More Product Details

The body of motor and pump is made of rigid cast iron forlong-lasting durability.
Greatly increased maximum submersion depth due to mechanical seal resistant to high pressure.
Both semi-open impeller and wear plate are made of high chrome alloy.
The hardness of this material is at least 58 HR, it’s more durable than other materials(ductile iron).
Effective motor cooling due to discharge channel cast as part of the motor housing. Space economy by a top outlet
Discharge 50mm (2″) to 150mm (6″). Motor l.5kW (2HP) to 15kW(20HP).
Hermetically sealed motor equipped build-in thermal protection for the power below 15kW.

KBS Submersible Slurry Pump Performance Curve

KBS Submersible Slurry Pump Technical Data

Model 50/60HZ	Outlet	Motor power		Starting Method	Rated current (380V)	Rated capacity		Rated head	Max capacity		Max head	impeller passage
		kW	HP			m³/h	m³/min		m³/h	m³/min
KBS44	80	4	5.5	D.O.L.	10.2	60	1.00	10	99	1.65	14.8	30
KBS46	100	6	8	D.O.L.	13.8	90	1.50	10	144	2.40	16.9	30
KBS49	150	9	12	D.O.L.	19.5	100	1.67	15	192	3.20	21.5	30
KBS415	200	15	20	D.O.L.	30.1	200	3.33	16	372	6.20	22	30
KBS422	200	22	30	Star-Delta	42.0	200	3.33	24	360	6.00	32	30

KBS Submersible Slurry Pump Structure:

Item No.	Part name	Material	Item No.	Part name	Material
01	Hose coupling	Cast iron	25	Strainer	Steel
02	Handle	Steel	27	Stator
05	Upper cover	Cast iron	28	Rotor	Shaft:AISI420SS
07	Bearing house	Cast iron	31a	Bearing	Ball bearing
11	Motor body	Cast iron	31b	Bearing	Ball bearing
13	Pump body	Cast iron	34	Mechanical seal	Sic-Sic/Sic-Sic Tc-Sic/Sic-Sic( > 15kW)
14a	Impeller	High chrome alloy	35	Oil seal
14b	Agitator	High chrome alloy	47	Cable
16a	Inlet plate	High chrome alloy
16b	Inlet plate	Cast iron

FAQ:

Q1: What makes the KBS series different from standard submersible sewage or dewatering pumps?

A: Standard dewatering or sewage pumps are only designed to move water and suspended light solids. If you put them in thick sludge, the solids settle around the pump, block the suction, and overheat the motor.

The KBS Series is a dedicated slurry pump. It features two critical differences:

Integrated High-Chrome Agitator: Located below the suction inlet, it mechanically beats and mixes settled solids, sand, and mud back into suspension, turning it into a pumpable fluid.
Heavy-Duty Metallurgy: The impeller, agitator, and inlet plate are cast from High-Chrome Alloy to resist severe erosion. A standard sewage pump would wear out within days in these conditions.

Q2: What is the exact maximum solid size the KBS pump can handle? Will it clog easily?

A: Every model in the KBS range (from the 3-inch KBS44 to the 8-inch KBS422) features a uniform 30 mm (1.18 inches) impeller passage.

Because of the wide internal clearance and the pre-mixing action of the agitator, it handles large particles, pebbles, and gravel smoothly. However, to protect the pump from oversized rocks or massive debris, the pump is equipped with a heavy-duty steel strainer at the base.

Q3: How does the KBS pump manage motor cooling if it is only partially submerged?

A: This is one of the biggest operational advantages of the KBS design. It utilizes a top-discharge, slim-line layout.

When the pump runs, the pumped slurry is forced up through a jacket that completely surrounds the motor housing before exiting the top discharge outlet. This continuous flow of slurry acts as a natural water-cooling jacket. As a result, the KBS can run safely and continuously even when it is only partially submerged or working in low-water drawdown applications without risk of burning the motor.

Q4: Submersible pumps are notorious for seal failures. What is the sealing mechanism on the KBS?

A: Seal failure is the #1 cause of motor burnout in slurry applications, which is why the KBS uses a dual-protection layout:

Dual Silicon Carbide (SiC-SiC) Mechanical Seals: Housed safely in an isolated oil chamber. SiC-to-SiC faces provide maximum hardness and zero fluid ingress, even under abrasive pressure.
Heavy-Duty Upgrades ( $>15\text{ kW}$ ): For the larger KBS415 (15 kW) and KBS422 (22 kW) models, the seals are upgraded to Tungsten Carbide-to-Silicon Carbide (Tc-SiC) on the high-pressure side to handle the massive back-pressure generated at higher heads (up to 32 meters).

Q5: Can I run the KBS pump directly from my standard power line, or do I need a specialized control panel?

A: It depends on the specific model’s power rating:

KBS44 to KBS415 (4 kW up to 15 kW): These models use D.O.L. (Direct On Line) starting. While they can technically connect directly via a standard breaker, we strongly recommend a basic control panel with over-current and phase-failure protection to safeguard your investment.
KBS422 (22 kW / 30 HP): This heavy-duty model requires a Star-Delta starting method. A Star-Delta starter panel is mandatory here to reduce the high inrush current during startup and protect your local power grid.

Q6: The impeller and suction plate will eventually wear down. Are these parts adjustable, or do I have to replace them immediately?

A: You do not need to replace them immediately. The KBS series is designed for industrial longevity. As abrasive slurry slowly wears down the high-chrome impeller and inlet plate over months or years of service, the gap between them will widen, causing a slight drop in pumping efficiency.

To fix this, the pump features an adjustable suction clearance mechanism. You can easily adjust the inlet plate closer to the impeller during routine maintenance to restore original hydraulic performance, significantly extending the wear life of the parts before a replacement is required.

Q7: What are the typical wear-part replacement intervals, and are your spare parts interchangeable?

A: Wear-part life depends entirely on the slurry’s concentration, particle sharpness, and operating hours. In standard sand mining or bentonite dredging, high-chrome components typically last between 3,000 to 5,000 operational hours.

Q8: What are the absolute limits of the slurry medium (Temperature, pH, Density)?

A: To ensure safe operation, the slurry medium should fall within the following parameters:

Medium Temperature: Maximum $40^\circ\text{C}$ ( $104^\circ\text{F}$ ) for standard models. (High-temperature customizations can be requested).
pH Range: 6.5 to 8.5 (Standard cast iron/high-chrome construction handles neutral to slightly alkaline mining/construction water).
Slurry Density: Maximum SG (Specific Gravity) of 1.2. If your slurry is thicker than this, the motor will pull excessive current, requiring a review of your flow rate or system head.