ZWE 50-42 – submersible sewage pump with cutting impeller
The IPRO ZWE 50-42 submersible pump is a professional unit with a cutting impeller, designed for pumping raw sewage and liquids 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 medium is heavily contaminated.
Who it’s for
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Wastewater pumping station and treatment plant operators – the cutting impeller allows the pump to handle wastewater containing solid contaminants without the risk of clogging.
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Farms and livestock operations – the pump can handle domestic wastewater, dirty water, as well as rainwater and surface water.
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Construction and maintenance companies – its simple design and easy disassembly make the pump suitable for excavation dewatering 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 50-42 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 raw water supply, draining dirty water and domestic wastewater, irrigation systems, and excavation dewatering.
Due to the design of its cutting impeller, the ZWE 50-42 pump is not intended for highly corrosive media or media containing abrasive or corrosive particles. The ZWE 50-42 400V submersible pump performs well where the pumped medium contains solid contaminants that need to be shredded before pumping, such as in wastewater pumping stations, farms or construction sites where excavations need to be drained.
The pump is not a water treatment device – if using it for other purposes, we recommend ensuring appropriate preparation.
ZWE 50-42 features – description and technical specifications
The motor and pump housing, impeller, and oil chamber are made of ŻL200 grey cast iron, making the construction resistant to abrasion and impacts typical of operation in heavily contaminated wastewater. The pump shaft and fasteners are made of stainless steel, providing 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 shredding system, even in aggressive environments.
The motor has class F insulation 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 structure 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, with bare wire ends
- Motor protection: thermal protection built into the winding + moisture sensors in the oil chamber and motor chamber
- Housing and impeller material: ŻL200 grey 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 hydraulic equipment with quality certifications.
Frequently asked questions (FAQ) - ZWE 50-42 submersible pump
What is the ZWE 50-42 pump designed for?
The IPRO ZWE 50-42 submersible pump is designed for raw wastewater and liquids containing solid or fibrous particles no longer than 80% of the pump outlet diameter. It is suitable for wastewater pumping stations, irrigation systems, and excavations dewatering.
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, two-channel impeller without shredding components. This makes the ZWE suitable for wastewater with more solid contaminants than the WE series.
Can the ZWE 50-42 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 the need for 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 - one in the oil chamber and one in the motor chamber - which detect any water ingress before the drive fails.
What is included in the ZWE 50-42 set?
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 50-42 submersible pump?
Dambat does not sell directly. The ZWE 50-42 pump is available from retail partners, plumbing wholesalers, and authorized online distributors.
What warranty terms apply to the ZWE 50-42 pump?
IPRO - 36 months (3 years) manufacturer’s warranty. Warranty and post-warranty service provided by Dambat.
