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The QW Series Submersible Sewage Pump is a high-performance pumping solution designed for the efficient handling of wastewater, sewage, and sludge. Engineered for long-term reliability, this pump can operate fully submerged in water, making it ideal for municipal, industrial, and domestic wastewater treatment applications. With its compact design, robust construction, and clog-resistant impeller, the QW pump delivers outstanding efficiency and durability even in harsh environments.
Index | Scope |
Flow | 10–3000 m³/h |
Head | 2~66 m |
Power | 0.75–250 kW |
Through the solid diameter | 25~110 mm |
Voltage | 380V / 415V / 440V (customizable for different regions) |
Frequency | 50Hz / 60Hz |
Medium Temperature | ≤ 60°C (customizable for higher temperatures) |
Material Options | Cast iron, stainless steel, wear-resistant alloy |
1.Anti-Clogging Flow Path
Open spiral blades create a centrifugal vortex to separate solids, achieving a throughput of up to 80% of the inlet diameter (e.g., the 100QW model can handle 80mm solids).
2. Triple Sealing Protection
Sealing layer | Material | Protection target |
Main mechanical seal | Silicon carbide/tungsten titanium (SiC/TiC) | Block sewage from entering the motor |
Secondary mechanical seal | Graphite-Ceramic | Double insurance seal |
Oil chamber leakage sensor | 304 stainless steel probe | Real-time monitoring of sealing status |
3.Heavy-Duty Motor System
Insulation Class: F (155°C temperature resistance)
Protection Rating: IP68 (24-hour submersible operation)
Cooling Method: Liquid-cooled cooling with heat sink design ensures no derating at ambient temperatures up to 45°C
Example: QW 100-30-15
QW-Submersible sewage pump series code
100-Inlet diameter (mm)
30-Rated head (m)
15-Motor power (kW)
Strong capability to handle solid and fibrous waste
Long service life with durable materials
Energy-efficient and environmentally friendly design
Flexible installation methods (mobile or fixed)
Minimal maintenance requirements
The QW series offers various models and configurations to meet different application needs:
QW Standard Type – For general sewage and wastewater transfer.
QW High-Flow Type – Designed for large-volume wastewater pumping.
QW High-Head Type – Suitable for applications requiring higher discharge pressure.
Explosion-Proof Type – For use in hazardous environments with flammable gases.
Portable Type – Lightweight and mobile for temporary or emergency use.
The QW sewage pump adopts an integrated motor and pump design with a vertical structure, making it easy to install directly into a sump or sewage pit without additional mounting structures. Main components include:
Motor – Fully sealed, submersible electric motor with Class F insulation and IP68 protection grade.
Pump Casing – Made of cast iron or stainless steel for corrosion resistance and structural strength.
Impeller – Single-channel or double-channel non-clog design, available in cast iron, stainless steel, or wear-resistant alloy.
Mechanical Seal – Double-end seal arrangement to prevent leakage and extend service life.
Bearing System – High-quality, grease-lubricated bearings for smooth and stable operation.
Cable Entry – Waterproof cable gland to prevent water ingress.
The QW submersible sewage pump is engineered with several unique advantages:
Non-Clog Performance – Special impeller design prevents blockages from solid particles and fibrous waste.
High Hydraulic Efficiency – Optimized flow channels reduce energy consumption and improve pumping performance.
Fully Submersible – Motor and pump operate underwater for extended periods without overheating.
Corrosion-Resistant Materials – Multiple material options for different liquid types, from domestic sewage to industrial chemicals.
Automatic Control Options – Can be equipped with float switches or control panels for automatic operation.
Low Noise & Vibration – Quiet performance makes it suitable for residential and public environments.
Easy Installation & Maintenance – Guide rail system allows quick removal without draining the sump.
The QW pump is versatile and widely used across multiple industries:
Municipal Wastewater Treatment – Pumping sewage from residential, commercial, and industrial areas to treatment plants.
Flood Control & Drainage – Removing floodwater from streets, tunnels, and basements.
Industrial Wastewater – Handling wastewater from factories, chemical plants, and manufacturing processes.
Construction Site Dewatering – Draining water from excavation sites and tunnels.
Agricultural Irrigation & Drainage – Managing irrigation water and removing excess rainwater from farmland.
Public Facilities – Used in hospitals, schools, and hotels for sewage discharge.
Septic Tank Pumping – Transferring sludge and sewage from septic systems to treatment facilities.
The QW sewage pump operates using the centrifugal pumping principle:
The motor drives the impeller, which rotates at high speed.
Liquid enters the impeller eye and is accelerated outward through centrifugal force.
This creates a low-pressure area at the inlet, drawing in more liquid.
The liquid’s velocity is converted into pressure energy in the pump casing, allowing it to be discharged.
The impeller’s special passage design allows the pump to handle liquids containing solid particles (up to 80 mm) and fibrous materials without clogging.
Never-clogging flow path
Patented helical impeller generates axial vortex flow, pushing solids directly out of the pump without dead spots.
Extremely long-life seals:
Dual mechanical seals + oil bath lubrication system, lifespan up to 12,000 hours (common pumps ≤ 5,000 hours).
Intelligent safety features:
Built-in winding temperature sensor, leakage alarm, overload protection module, and IoT remote monitoring support.
Energy-saving and high efficiency:
Optimized hydraulic model, 18%-22% energy savings compared to traditional sewage pumps (third-party test report: EN 12262 standard).
Modular maintenance:
Auto-coupling system for guide rails enables quick installation in 3 minutes, eliminating the need for personnel to descend the wellbore.
For wastewater containing large solid particles: Choose a vortex pump (such as the SEV series) or a cutting pump (such as the Myers 3RMW).
For deep wells/fixed sewage tanks: Choose a submersible QW or Steady series pump, paying attention to the sealing rating (IP68) and material (cast iron/stainless steel).
For non-powered/mobile applications: Choose a diesel self-priming pump truck (such as the 200JCQF500).
For sludge return: Choose a low-head, high-flow return pump (QJB-W series).
For chemical dosing: Choose a smart metering pump (Grundfos SMART series), requiring a compatible communication interface.
The actual selection should be based on a comprehensive consideration of flow rate, head, media characteristics (solids content, corrosiveness), and installation environment (submersible depth, power supply conditions) to avoid the risk of clogging or overload.
German hydraulic design + Chinese manufacturing precision: Hydraulic models developed in collaboration with KSB guarantee efficiency deviations of less than 3%.
10-year main body warranty: The industry's only 10-year warranty on the pump body and motor.
Customization services: Available in explosion-proof (Ex d IIB), high-lift models (H suffix), and corrosion-resistant models (316L material).
Get your customized solution now.
↳ Download 3D installation drawings & load calculation sheets:
Website: https://www.jush-pump.com/
↳ Technical Support: +86-18930647859
↳ Technical Email: sales@jush-pump.com
Pro Tip: For wastewater with sand content greater than 5%, we recommend the use of a wear-resistant chrome alloy impeller (Wear-Resistant Cr-Alloy), which can extend the lifespan by 3 times!
Shanghai JUSH Pump – Professional Pump Manufacturer
Our company is a leading manufacturer and supplier of high-quality pump solutions, specializing in the research, development, and production of various industrial and commercial pumps. Our product range covers centrifugal pumps, booster pump,submersible sewage pumps, multistage pumps, self-priming pumps, rotary lobe pumps, diaphragm pumps, and more, serving industries such as water supply, wastewater treatment, agriculture, chemical processing, food and beverage, and construction.
The QW Series Submersible Sewage Pump is a high-performance pumping solution designed for the efficient handling of wastewater, sewage, and sludge. Engineered for long-term reliability, this pump can operate fully submerged in water, making it ideal for municipal, industrial, and domestic wastewater treatment applications. With its compact design, robust construction, and clog-resistant impeller, the QW pump delivers outstanding efficiency and durability even in harsh environments.
Index | Scope |
Flow | 10–3000 m³/h |
Head | 2~66 m |
Power | 0.75–250 kW |
Through the solid diameter | 25~110 mm |
Voltage | 380V / 415V / 440V (customizable for different regions) |
Frequency | 50Hz / 60Hz |
Medium Temperature | ≤ 60°C (customizable for higher temperatures) |
Material Options | Cast iron, stainless steel, wear-resistant alloy |
1.Anti-Clogging Flow Path
Open spiral blades create a centrifugal vortex to separate solids, achieving a throughput of up to 80% of the inlet diameter (e.g., the 100QW model can handle 80mm solids).
2. Triple Sealing Protection
Sealing layer | Material | Protection target |
Main mechanical seal | Silicon carbide/tungsten titanium (SiC/TiC) | Block sewage from entering the motor |
Secondary mechanical seal | Graphite-Ceramic | Double insurance seal |
Oil chamber leakage sensor | 304 stainless steel probe | Real-time monitoring of sealing status |
3.Heavy-Duty Motor System
Insulation Class: F (155°C temperature resistance)
Protection Rating: IP68 (24-hour submersible operation)
Cooling Method: Liquid-cooled cooling with heat sink design ensures no derating at ambient temperatures up to 45°C
Example: QW 100-30-15
QW-Submersible sewage pump series code
100-Inlet diameter (mm)
30-Rated head (m)
15-Motor power (kW)
Strong capability to handle solid and fibrous waste
Long service life with durable materials
Energy-efficient and environmentally friendly design
Flexible installation methods (mobile or fixed)
Minimal maintenance requirements
The QW series offers various models and configurations to meet different application needs:
QW Standard Type – For general sewage and wastewater transfer.
QW High-Flow Type – Designed for large-volume wastewater pumping.
QW High-Head Type – Suitable for applications requiring higher discharge pressure.
Explosion-Proof Type – For use in hazardous environments with flammable gases.
Portable Type – Lightweight and mobile for temporary or emergency use.
The QW sewage pump adopts an integrated motor and pump design with a vertical structure, making it easy to install directly into a sump or sewage pit without additional mounting structures. Main components include:
Motor – Fully sealed, submersible electric motor with Class F insulation and IP68 protection grade.
Pump Casing – Made of cast iron or stainless steel for corrosion resistance and structural strength.
Impeller – Single-channel or double-channel non-clog design, available in cast iron, stainless steel, or wear-resistant alloy.
Mechanical Seal – Double-end seal arrangement to prevent leakage and extend service life.
Bearing System – High-quality, grease-lubricated bearings for smooth and stable operation.
Cable Entry – Waterproof cable gland to prevent water ingress.
The QW submersible sewage pump is engineered with several unique advantages:
Non-Clog Performance – Special impeller design prevents blockages from solid particles and fibrous waste.
High Hydraulic Efficiency – Optimized flow channels reduce energy consumption and improve pumping performance.
Fully Submersible – Motor and pump operate underwater for extended periods without overheating.
Corrosion-Resistant Materials – Multiple material options for different liquid types, from domestic sewage to industrial chemicals.
Automatic Control Options – Can be equipped with float switches or control panels for automatic operation.
Low Noise & Vibration – Quiet performance makes it suitable for residential and public environments.
Easy Installation & Maintenance – Guide rail system allows quick removal without draining the sump.
The QW pump is versatile and widely used across multiple industries:
Municipal Wastewater Treatment – Pumping sewage from residential, commercial, and industrial areas to treatment plants.
Flood Control & Drainage – Removing floodwater from streets, tunnels, and basements.
Industrial Wastewater – Handling wastewater from factories, chemical plants, and manufacturing processes.
Construction Site Dewatering – Draining water from excavation sites and tunnels.
Agricultural Irrigation & Drainage – Managing irrigation water and removing excess rainwater from farmland.
Public Facilities – Used in hospitals, schools, and hotels for sewage discharge.
Septic Tank Pumping – Transferring sludge and sewage from septic systems to treatment facilities.
The QW sewage pump operates using the centrifugal pumping principle:
The motor drives the impeller, which rotates at high speed.
Liquid enters the impeller eye and is accelerated outward through centrifugal force.
This creates a low-pressure area at the inlet, drawing in more liquid.
The liquid’s velocity is converted into pressure energy in the pump casing, allowing it to be discharged.
The impeller’s special passage design allows the pump to handle liquids containing solid particles (up to 80 mm) and fibrous materials without clogging.
Never-clogging flow path
Patented helical impeller generates axial vortex flow, pushing solids directly out of the pump without dead spots.
Extremely long-life seals:
Dual mechanical seals + oil bath lubrication system, lifespan up to 12,000 hours (common pumps ≤ 5,000 hours).
Intelligent safety features:
Built-in winding temperature sensor, leakage alarm, overload protection module, and IoT remote monitoring support.
Energy-saving and high efficiency:
Optimized hydraulic model, 18%-22% energy savings compared to traditional sewage pumps (third-party test report: EN 12262 standard).
Modular maintenance:
Auto-coupling system for guide rails enables quick installation in 3 minutes, eliminating the need for personnel to descend the wellbore.
For wastewater containing large solid particles: Choose a vortex pump (such as the SEV series) or a cutting pump (such as the Myers 3RMW).
For deep wells/fixed sewage tanks: Choose a submersible QW or Steady series pump, paying attention to the sealing rating (IP68) and material (cast iron/stainless steel).
For non-powered/mobile applications: Choose a diesel self-priming pump truck (such as the 200JCQF500).
For sludge return: Choose a low-head, high-flow return pump (QJB-W series).
For chemical dosing: Choose a smart metering pump (Grundfos SMART series), requiring a compatible communication interface.
The actual selection should be based on a comprehensive consideration of flow rate, head, media characteristics (solids content, corrosiveness), and installation environment (submersible depth, power supply conditions) to avoid the risk of clogging or overload.
German hydraulic design + Chinese manufacturing precision: Hydraulic models developed in collaboration with KSB guarantee efficiency deviations of less than 3%.
10-year main body warranty: The industry's only 10-year warranty on the pump body and motor.
Customization services: Available in explosion-proof (Ex d IIB), high-lift models (H suffix), and corrosion-resistant models (316L material).
Get your customized solution now.
↳ Download 3D installation drawings & load calculation sheets:
Website: https://www.jush-pump.com/
↳ Technical Support: +86-18930647859
↳ Technical Email: sales@jush-pump.com
Pro Tip: For wastewater with sand content greater than 5%, we recommend the use of a wear-resistant chrome alloy impeller (Wear-Resistant Cr-Alloy), which can extend the lifespan by 3 times!
Shanghai JUSH Pump – Professional Pump Manufacturer
Our company is a leading manufacturer and supplier of high-quality pump solutions, specializing in the research, development, and production of various industrial and commercial pumps. Our product range covers centrifugal pumps, booster pump,submersible sewage pumps, multistage pumps, self-priming pumps, rotary lobe pumps, diaphragm pumps, and more, serving industries such as water supply, wastewater treatment, agriculture, chemical processing, food and beverage, and construction.