KBZE dewatering pump is made with a cast iron body, the KBZE pump can withstand the most demanding heavy duty conditions found in construction, aggregate and mining applications.
Protect against reverse phase, ensuring correct impeller rotation;
Protect against open phase or impeller jam, thus prevent accidental damage;
Automatically stop the pump in event of overload, abnormal voltage and recovery 5min later;
The pump stops working at high temperature, and will automatically restart after cooling to the specified temperature;
The water sensor’s height is adjustable to control pump operation and stop;
The pump stops working within 60s when water level is below the probe, when the water level rises to contact the electric probe, pump starts operating again;
Rapid assessment about the pump operation and malfunction history.
Applications
Mines, quarries, coal ore& slurries
Civil engineering
Sewage treatment plants
General pumping purposes
Advantage
Intelligent Auto-Control: Features a built-in electrode sensor for automatic start/stop, providing true dry-running protection and slashing energy costs.
Active Motor Protection: Integrated smart module protects against open phase, reverse rotation, impeller jams, and voltage overloads.
Superior Wear Resistance: Equipped with a high-chrome alloy semi-open impeller (≥ 58 HRC) to handle highly abrasive sand, gravel, and slurry with ease.
Continuous Shallow Cooling: Slim, top-discharge design uses the pumped fluid to cool the motor, allowing safe, continuous operation even when only partially submerged.
Flexible Versatility: Highly cost-effective design allows easy conversion between high-head and high-volume configurations using interchangeable wear parts.
More Product Details
KBZE dewatering pump is made with a cast iron body, the KBZE pump can withstand the most demanding heavy duty conditions found in construction, aggregate and mining applications.
Both semi-open impeller and wear plate of this submersible pump 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).
Greatly increased maximum submersion depth due to mechanical seal resistant to high pressure.
Hermetically sealed motor equipped build-in thermal protection for the power below 5.5kW.
Effective motor cooling due to discharge channel cast as part of the motor housing. Space economy by a top outlet Discharge 50mm (2″) to 100mm (4″). Motor l.5kW(2HP) to 5.5kW(7.5HP).
Versatility is increased as each model of KBZE pump has the capability of being easily converted between high head and high volume performance with a simple change of impeller, suction cover and hose coupling.
The pump can operate automatically with built-in intelligent control system, thus achieve low total energy costs.
Q1: What makes the KBZE series different from standard KBZ dewatering pumps?
The primary difference lies in the intelligent automatic control system.
The KBZ Series: Requires manual operation or an external control panel with float switches to start and stop.
The KBZE Series: Features an integrated electric sensor probe (electrode). It automatically starts pumping when water touches the probe and shuts down within 60 seconds when the water level drops below it. This built-in automation eliminates the need for complex external wiring, cuts down energy consumption, and provides absolute dry-running protection.
Q2: How does the KBZE pump protect itself from motor burnout and phase failures?
Site conditions in mining and civil engineering can be brutal on electrical components. The KBZE intelligent control system includes multiple built-in safeguards to prevent costly downtime:
Open Phase & Reverse Phase Protection: Ensures the motor won’t start if a phase is missing, and automatically corrects or halts operation to prevent the high-chrome impeller from rotating backwards.
Overload & Abnormal Voltage Protection: If an impeller jam occurs or voltage fluctuates beyond ±10%, the pump automatically shuts down and attempts a safe recovery restart 5 minutes later.
Thermal Shutdown: If the motor overheats due to demanding heavy-duty conditions, it stops immediately and restarts only after cooling down to a safe operating temperature.
Q3: What materials are used to ensure the KBZE pump handles abrasive slurries?
The KBZE is engineered specifically for abrasive environments like sand, aggregate, quarries, and coal ore.
Casing & Motor Body: Heavy-duty, rigid cast iron for long-lasting structural durability.
Impeller: A semi-open impeller made of premium high chrome alloy (with a hardness rating of at least 58 HRC), delivering significantly higher wear resistance than standard ductile iron.
Wear Plate (Inlet Plate): Constructed from rugged ductile iron to match the high-chrome impeller’s service life.
Shaft & Mechanical Seal: Equipped with an AISI 420 stainless steel shaft and a high-pressure resistant double mechanical seal (Silicon Carbide to Silicon Carbide), enabling a maximum submersion depth of up to 25 meters.
Q4: Can I convert a high-volume KBZE model into a high-head model?
Yes, exceptional versatility is a core feature of this heavy-duty design. Each model within the series can be easily converted between high head and high volume (high capacity) performance. This conversion is highly cost-effective and only requires a simple swap of three interchangeable consumable parts:
The Impeller
The Suction Cover (Inlet/Wear Plate)
The Hose Coupling
This allows fleet managers to adapt the same pump body to differing site specifications, from deep basement excavations to wide-area flood drainage.
Q5: Can the KBZE pump operate continuously when only partially submerged?
Yes, it can. Unlike standard submersible pumps that rely entirely on surrounding water for cooling, the KBZE utilizing a top discharge, side-flow path design. The pumped water travels through a discharge channel cast directly into the motor housing. This means as long as fluid is flowing through the pump, the motor is effectively cooled, allowing continuous duty even when the motor is exposed to air in shallow pits.
Q6: What are the key specifications regarding flow rate, head, and power options?
The KBZE series offers a wide performance envelope to match diverse industrial and civil construction needs:
Power Output: Available from 1.5 kW (2 HP) up to 5.5 kW (7.5 HP) for intelligent auto-control models.
Flow Capacity: Up to 105m3/h for high-volume configurations.
Maximum Head: Up to 38 meters for high-pressure setups.
Power Supply Options: Three-phase 380V/400V ±10%, available in both 50Hz and 60Hz to comply with international power grid standards.
Q7: What size of solids can the KBZE submersible drainage pump handle?
The KBZE is a heavy-duty drainage and dewatering pump designed for dirty water containing sand, gravel, and light sediment. Generally, it can handle spherical solids ranging from 8mm to 15mm depending on the specific horse-power model.
Note: If you are dealing with extremely thick viscous mud, heavy sludge, or large debris, we recommend utilizing a heavy slurry pump equipped with an agitator, or a submersible sewage pump with a cutting mechanism.
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