QBS 25-8-1.5 1~230V – submersible pump for contaminated water
The IPRO QBS 25-8-1.5 is a submersible pump designed to operate fully submerged, equipped with a DN50 flanged connection typical of professional installations, while still using a single-phase 230V power supply. It is suitable for installations requiring flanged mounting where three-phase power is unavailable. The free-passage impeller allows it to handle liquids containing solid contaminants without the risk of the mechanism becoming blocked.
Who it’s for
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Farms without three-phase power – the QBS 25-8-1.5 pump is suitable for draining tanks and pumping water from drainage ditches where only a 230V power supply is available.
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Construction and service companies – the DN50 flanged connection makes it easy to connect securely to discharge pipelines in excavations and technical sumps.
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Small industrial plants – the pump is suitable for process and emergency installations requiring flanged mounting with a standard 230V power supply.
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Those preparing emergency installations – the built-in float switch automatically starts and stops the pump depending on the water level.
Applications
In this version, the IPRO QBS 25-8-1.5 pump is designed for draining tanks, sumps and flooded excavations containing clean or contaminated water, within the maximum particle diameter permitted for the model. It is suitable for agricultural and service applications where a durable flanged connection to the system is required and three-phase power is unavailable.
The pump is not designed for liquids containing abrasive particles such as sand or gravel, or for corrosive, flammable, petroleum-based liquids or salt water – the solids content must not exceed 10%. The pump does not treat water. If using it for purposes requiring potable water, we recommend ensuring appropriate treatment. The QBS 25-8-1.5 DN50 1~230V pump operates on a single-phase power supply at 1~230 V.
QBS 25-8-1.5 DN50 1~230V features – design and technical specifications
The QBS 25-8-1.5 pump housing is made of AISI 304 stainless steel. The impeller provides free passage for contaminants, with the maximum permitted particle diameter varying by model. The double mechanical seal operates in an oil chamber, extending its service life during prolonged use. The motor has thermal protection built into the winding and an integrated start capacitor, eliminating the need for an external starting box. The pump is equipped with a float switch that automatically starts and stops the motor depending on the water level, protecting the pump from running dry.
Unlike models with a threaded connection, this group is equipped with a DN50 flange connection, making it easier to install securely in piping systems. The 10 m power cable is fitted with a plug.
- Pump type: submersible, for contaminated water
- Power supply: 1~230 V, 50 Hz
- Connection: DN50 flanged
- Insulation class: F
- Protection rating: IP68
- Max. fluid temperature: 50°C
- Max. submersion depth: 5 m
- Max. solid content: 10%
- Motor thermal protection: yes
- Float switch: built-in
- Starting capacitor: built into the motor
- Rotational speed: 2850 rpm
- Power cable length: 10 m, fitted with a plug
IPRO – 36-month (3-year) manufacturer's warranty. Dambat provides warranty and post-warranty service.
Dambat – a trusted manufacturer of pumps and water engineering equipment with quality certifications.
Frequently asked questions (FAQ) – QBS 25-8-1.5 DN50 1~230V submersible pump
What applications is the QBS 25-8-1.5 DN50 pump suitable for?
The IPRO QBS 25-8-1.5 pump with a DN50 flanged connection is suitable for agriculture, construction, and light industry, for draining tanks, excavations, and inspection chambers where a durable flanged connection is required but three-phase power is unavailable.
Why does this pump have a flanged connection if it's single-phase?
The QBS 25-8-1.5 model combines a DN50 flanged connection, typical of professional installations, with a single-phase 230V power supply. It is designed for installations requiring a durable flanged connection in locations without access to three-phase power.
Which liquids can't the QBS 25-8-1.5 pump?
The pump is not designed for liquids containing abrasive particles such as sand or gravel, or for corrosive, flammable, petroleum-based liquids or salt water. The solid content must not exceed 10%.
Where can you buy the QBS 25-8-1.5 DN50 submersible pump?
Dambat does not sell directly. The QBS 25-8-1.5 pump is available from our sales partners, plumbing wholesalers, and authorized online distributors.
Is the IPRO QBS 25-8-1.5 pump covered by a manufacturer's warranty?
IPRO – 36-month (3-year) manufacturer's warranty. Dambat provides warranty and post-warranty service.
