Product Description
ZQB & HQB SUBMERSIBLE AXIAL-FLOW AND MIXED-FLOW PUMPS
High-Capacity Water Transfer Solutions
The ZQB and HQB Series are newly developed submersible pump products designed for high-volume water transfer projects.
By integrating the motor and hydraulic unit into one compact underwater structure, the pumps reduce pumping-station construction requirements, simplify operation and maintenance, and provide dependable performance under continuous-duty conditions.
Two hydraulic configurations are available:
ZQB Axial-Flow Pump: Recommended for very high flow and low-head applications.
HQB Mixed-Flow Pump: Recommended for high flow with a higher discharge head than the axial-flow series.
Key Features
High Flow Capacity
The optimized hydraulic design enables the pumps to handle large quantities of water efficiently. The axial-flow series is suitable for very large flow rates at low heads, while the mixed-flow series provides increased head capacity.
Compact Integrated Structure
The motor and pump are integrated into one submersible unit, reducing the size and complexity of the pumping station.
Reliable Underwater Motor
The motor features:
IP68 protection
Class F insulation
Built-in temperature-sensitive components
Dynamically balanced rotor
Cooling by the surrounding pumped liquid
Leakage and Temperature Protection
A leakage-detection device monitors accidental water ingress and provides additional motor protection. Thermal elements installed in the stator help prevent damage caused by overheating.
Durable Sealing System
High-quality mechanical seals provide reliable sealing performance with low mechanical loss.
Flexible Hydraulic Performance
Different blade installation angles are available. The required blade angle, motor power and operating point can be selected according to the specified flow and head.
Convenient Operation and Maintenance
The integrated submersible arrangement reduces civil construction requirements and makes the pump suitable for automatic pumping-station operation.
Typical Applications
The ZQB and HQB Series are widely used for:
Agricultural irrigation and drainage
Municipal flood control
Urban stormwater drainage
Industrial water-transfer systems
Power-station water supply and drainage
Water-conservancy projects
Pumping stations
Shipyards and dock drainage
River and lake water transfer
Emergency high-volume drainage
Applicable Medium
The pumps are designed for conveying:
Clean water
River water
Rainwater
Lightly contaminated water
Other liquids with physical and chemical properties similar to water
Special material configurations should be confirmed before handling corrosive or abrasive liquids.
