For permanent wet wells
The pump can be lowered to a base connection and retrieved along the rails. Confirm the coupling base, rails, chain, pipe and valve arrangement.
QW Series | Submersible Sewage Pump
QW Series Non-Clogging Submersible Sewage Pump
For Wastewater, Stormwater and Dewatering
QW is a submersible sewage pump series for duties where the liquid may contain suspended solids or fibrous material. Select the model based on the required flow, total dynamic head, wastewater, installation and electrical supply.
Request Pump SelectionWhat Is a QW Non-Clogging Submersible Sewage Pump?
The Norite QW series is a wastewater submersible pump range that combines the motor and hydraulic section in one submerged unit. It is intended for wastewater containing suspended solids or fibrous material, subject to the selected hydraulic design and solids passage. QW is the general sewage-duty family; review QWS when cutting is required and QWX when higher head is the main constraint. The listed arrangements are fixed guide-rail, mobile and free-standing.
Series range, not one model: the values below describe the overall QW series envelope. Final performance, solids passage, material, motor and installation details must be confirmed on the selected model datasheet, drawing and Q-H curve.
8-5500 m³/hPublished series flow range
8-110 mPublished series head range
DN25-DN600Published discharge range
1.1-550 kWPublished series power range
QW Series Product Reference Views
The four supplied views show the general QW construction. Outlet position, lifting arrangement and external details vary by model.
QW Submersible Sewage Pump Technical Range
Use the series data for initial screening only. Confirm the available combination against the exact duty point and current model documents.
| Pump type | Non-clogging submersible sewage pump |
|---|---|
| Discharge size | DN25-DN600 mm* |
| Flow range | 8-5500 m³/h* |
| Head range | 8-110 m* |
| Power range | 1.1-550 kW* |
| Nominal speeds listed | 740 / 980 / 1450 / 2900 rpm |
| Electrical supply listed | 380 V / 50 Hz; 400 V / 60 Hz |
| Maximum liquid temperature listed | 60°C or below* |
| Liquid pH listed | 5-9* |
| Motor protection and insulation | IP68; insulation class F |
| Shaft seal | Double mechanical seal |
| Installation forms listed | Fixed, mobile and free-standing submerged installation |
| Materials listed | Cast iron, stainless steel and duplex stainless steel; confirm exact grades and component coverage |
*These limits are not all available in one pump configuration. Final supply requires a model-specific datasheet and Q-H curve.
Integrated Motor, Seal Chamber and Hydraulic Section
The supplied sectional drawing identifies the motor, bearings, shaft, oil chamber, double mechanical seal, impeller and pump casing. Sensors, probes, switches and cooling details can be configuration-specific.
MotorIP68 protection and class F insulation are listed.
SealA double mechanical seal is listed for the series.
HydraulicsMatch the impeller and casing to the wastewater and duty.
MonitoringConfirm leakage, level and protection devices by configuration.
QW Submersible Sewage Pump Installation Options
Installation choice affects pipework, access, lifting, cable routing, operating levels and maintenance.
Applications for QW Non-Clog Submersible Sewage Pumps
Wastewater composition, solids, corrosion, temperature and site conditions determine whether a specific model is suitable.
Municipal wastewater
Wet wells, sewage lift stations and related drainage duties.
Stormwater control
Urban drainage, emergency dewatering and flood-water transfer.
Industrial wastewater
Industrial effluent after chemistry, solids and materials review.
Construction sites
Temporary dewatering with attention to grit, debris and wear.
Underground spaces
Garages, subways, tunnels and other below-grade drainage.
Rural wastewater
Wastewater transfer where liquid content and installation are defined.
QW vs QWS vs QWX Sewage Pumps
Select the family from the wastewater and hydraulic duty, not from the series name alone.
General sewage duty
For submerged wastewater, stormwater and dewatering duties where suspended solids or fibres may be present.
Request a QW selectionCutting configuration
Review this series when the duty specifically calls for a cutter mechanism and the waste stream is defined.
View the QWS cutting sewage pumpHigher-head sewage duty
Review this series when discharge pressure is the main constraint and compare the actual Q-H curves.
View the QWX high-lift sewage pumpWastewater Pumping Station Upgrade
A supplied wastewater pumping project reference from Sluis, Netherlands.
Reducing blockage and maintenance
The original station was reported to experience repeated blockage, high operating cost and frequent maintenance. The supplied project record states that a 40 HP non-clog submersible sewage pump replaced the old unit.
- Location
- Sluis, Netherlands
- Owner
- Sluis Municipal Sewage Pumping Station
- Equipment
- 40 HP non-clog submersible sewage pump
- Reported result
- Fewer blockages and less maintenance
The supplied project reference provides installation context; it is not independent verification of pump performance. Final pump selection still requires the site duty point, fluid data and solids profile.
Certification & Standards Document Review
The marks below reproduce the certification display used elsewhere on this website. They do not independently verify that any specific QW model holds any of these approvals.
Request and verify the certificate or compliance documents that apply to the selected QW configuration, manufacturing scope and destination market.
How to Select a QW Submersible Sewage Pump
Provide enough detail to match the hydraulic duty, wastewater and installation.
Operating and site data
- Required flow and total dynamic head
- Normal, minimum and maximum duty points
- Wastewater source, temperature and pH
- Solids, fibres, rags, grit and grease
- Wet-well dimensions and operating levels
- Voltage, frequency, phase and control method
Documents to confirm
- Model-specific datasheet and Q-H curve
- General arrangement drawing and weight
- Impeller and solids-passage information
- Wetted materials and mechanical seals
- Motor, cable, sensors and protection details
- Inspection, test and operating documents
QW Non-Clog Submersible Sewage Pump FAQs
What can a QW non-clogging submersible sewage pump handle?
The series is intended for sewage and wastewater that may contain suspended solids and fibrous material. Suitability depends on particle size, fibre length, solids concentration, grit, oils or grease, impeller and passage size.
Does non-clogging mean the pump cannot clog?
No. The term describes a hydraulic design intended to reduce blockage risk in suitable sewage duties. It does not cover every rag, wipe, fibre, oversized solid or wet-well condition.
Is the full 8-5500 m³/h and 8-110 m range available in every model?
No. Those figures describe the series envelope. Flow, head, power, speed, discharge size, material and installation combinations vary by model.
Can the QW series be supplied for 50 Hz or 60 Hz?
The listed supply options are 380 V / 50 Hz and 400 V / 60 Hz. Confirm the exact voltage, frequency, phase and motor rating for the selected model.
Which installation type should I choose?
A fixed guide-rail coupling suits permanent wet wells and simplifies retrieval. Mobile and free-standing arrangements suit temporary or less permanent installations.
When should I review QWS or QWX instead?
Review QWS when the duty specifically requires a cutting mechanism. Review QWX when higher head is the main need. Compare the actual curves and wastewater requirements.
Request a QW Pump Selection
Send the required flow, total head, wastewater, solids, wet-well arrangement, electrical supply, materials, quantity and destination.
Go to the RFQ Form