ZWE 50-12 – submersible sewage pump with cutting impeller
The IPRO ZWE 50-12 submersible pump is a professional device with a cutting impeller, designed for pumping raw sewage and fluids containing solid or fibrous particles. Its high-quality hardened steel impeller effectively shreds contaminants at the pump inlet, ensuring safe operation even when the pumped fluid contains high levels of contamination.
Who it's for
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Sewage pumping station and treatment plant operators – the cutting impeller handles sewage containing solid contaminants without the risk of clogging the pump.
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Farms and livestock operations – the pump can handle domestic sewage, dirty water, rainwater, and surface water.
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Construction and maintenance companies – its simple design and easy disassembly make the pump convenient for dewatering excavations and routine maintenance work.
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Irrigation system installers – the grinding system's high resistance to abrasion and corrosion makes it suitable for extensive irrigation systems for green spaces.
Applications
The ZWE 50-12 submersible pump is designed for raw sewage and fluids containing solid or fibrous particles no longer than 80% of the pump outlet diameter. It is suitable for supplying raw water, draining dirty water and domestic sewage, irrigation systems, and dewatering excavations.
Due to the design of its cutting impeller, the ZWE 50-12 pump is not suitable for highly corrosive fluids or fluids containing abrasive or corrosive particles. The ZWE 50-12 400V submersible pump performs well where the pumped fluid contains solid contaminants that need to be shredded before pumping, for example in sewage pumping stations, farms, or construction sites for dewatering excavations.
The pump is not a water treatment device – if using it for other purposes,
we recommend ensuring suitable preparation.
ZWE 50-12 features – description and technical specifications
The motor and pump housings, impeller, and oil chamber are made of ŻL200 gray cast iron, making
the construction resistant to abrasion and impacts typical of operation in highly
contaminated wastewater. The pump shaft and fasteners are made of stainless steel, ensuring
corrosion resistance during prolonged contact with moisture and wastewater.
The impeller and cutting plate are made of hardened steel, ensuring high resistance to wear in the
grinding system, even in aggressive environments.
The motor operates in insulation class F and is protected by thermal protection built into
the stator winding. In addition, two independent moisture sensors – one in the oil chamber
and one in the motor chamber – signal any water ingress before the drive fails.
The unique design of the cutting plate, with grooves and a scraper, effectively removes
shredded solids, preventing them from accumulating on the impeller.
- Pump type: submersible pump with cutting impeller
- Power supply: 3~400 V, 50 Hz
- Max. medium temperature: 40°C
- Max. liquid density: 1050 kg/m³
- Permissible pH range: 4–10
- Protection rating: IP68
- Insulation class: F
- Power cable: 10 m, terminated with bare leads
- Motor protection: thermal protection built into the winding + moisture sensors in the oil and motor chambers
- Casing and impeller material: ŻL200 gray cast iron
- Pump shaft: stainless steel
- Impeller and cutting plate: hardened steel
- Mechanical seal: double, upper SiC/graphite, lower SiC/SiC
- Max. number of starts: 15/h
IPRO – 36 months (3 years) manufacturer’s warranty. Warranty and post-warranty service provided by Dambat.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certifications.
Frequently Asked Questions (FAQ) – ZWE 50-12 submersible pump
What is the ZWE 50-12 pump designed for?
The IPRO ZWE 50-12 submersible pump is designed for raw sewage and liquids containing solid or fibrous particles no longer than 80% of the pump outlet diameter. It is suitable for sewage pumping stations, irrigation systems and draining excavations.
What is the difference between the ZWE pump and the WE pump?
The ZWE pump is equipped with a hardened steel cutting impeller that shreds solid contaminants at the pump inlet, while the WE pump has a closed, dual-channel impeller without cutting components. This makes the ZWE suitable for wastewater with more solid contaminants than the WE series.
Can the ZWE 50-12 pump operate continuously?
Yes, the pump is designed for continuous operation when fully submerged in liquid, allowing it to run continuously in pumping stations without regular breaks.
How is the pump motor protected against damage?
The motor is protected by thermal protection built into the stator winding and two independent moisture sensors - in the oil chamber and the motor chamber - which detect any water ingress before the drive fails.
What is included with the ZWE 50-12?
With the pump, the set includes a coupling foot, a pump hook and a guide rail bracket, allowing stationary installation in a pumping station without the need to purchase additional accessories.
Where can you buy the ZWE 50-12 submersible pump?
Dambat does not sell directly. The ZWE 50-12 pump is available from sales partners, plumbing wholesalers and authorized online distributors.
What warranty terms apply to the ZWE 50-12 pump?
IPRO – 36 months (3 years) manufacturer’s warranty. Dambat provides warranty and post-warranty service.
