ZWE 50-32 – submersible sewage pump with cutting impeller
The IPRO ZWE 50-32 submersible pump is a professional-grade unit with a cutting impeller,
designed for pumping raw sewage and liquids containing solid or fibrous particles. Its high-quality hardened steel impeller effectively grinds up contaminants at the pump inlet, allowing it to operate safely even when the pumped medium contains a high level of contaminants.
Who it’s for
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Sewage pumping station and wastewater treatment plant operators – the cutting impeller can handle sewage containing solid contaminants without the risk of the pump becoming blocked.
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Farms and livestock operations – the pump can handle domestic wastewater, dirty water, rainwater, and surface water.
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Construction and maintenance companies – its simple design and easy disassembly make the pump suitable for draining 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 50-32 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 supplying raw water, draining dirty water and domestic wastewater, irrigation systems, and draining excavations.
Due to the design of its cutting impeller, the ZWE 50-32 pump is not intended for highly corrosive media
or media containing abrasive or corrosive particles. The ZWE 50-32 400V submersible pump is well suited to applications where the pumped medium contains solid contaminants that need to be ground up before pumping, such as sewage 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 50-32 features – description and technical data
The motor and pump housing, impeller, and oil chamber are made of ŻL200 gray cast iron, making
the construction resistant to abrasion and impact typical of operation in heavily
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 shredding 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 – in the oil chamber
and motor chamber – signal any water ingress before the drive fails. The unique design of the
cutting disc, 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 unterminated leads
- Motor protection: thermal protection built into the winding + moisture sensors in the oil chamber and motor
- Housing 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-month (3-year) 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 50-32 submersible pump
What is the ZWE 50-32 pump designed for?
The IPRO ZWE 50-32 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 wastewater pumping stations, irrigation systems, and excavation 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 with no cutting components.
As a result, the ZWE is suitable for wastewater with more solid contaminants
than the WE series.
Can the ZWE 50-32 pump operate continuously?
Yes, the pump is designed for continuous operation while 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 a thermal protection device built into the stator winding and two
independent moisture sensors - in the oil chamber and the motor chamber - which
signal any water ingress before the drive fails.
What is included in the ZWE 50-32 set?
With the pump, the set includes a coupling foot, a pump hook, and a guide rail bracket,
enabling stationary installation in a pumping station without the need to purchase
additional accessories.
Where can I buy the ZWE 50-32 submersible pump?
Dambat does not sell directly to customers. The ZWE 50-32 pump is available from sales partners,
plumbing wholesalers, and authorized online distributors.
What are the warranty terms for the ZWE 50-32 pump?
IPRO - 36 months (3 years) of manufacturer's warranty. Warranty and post-warranty service
is provided by Dambat.
