4" ISP 8-18 – submersible pump with a 20 m cable
The 4" ISP submersible pump is a multistage IBO design made entirely of stainless steel, intended for drawing and pumping untreated water in single-family and multifamily homes, farms, and industrial installations. The factory-fitted 20 m cable with a plug eliminates the need for additional cable extensions at typical installation depths, while thermal protection built into the winding protects the motor against overload.
Who it is for
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Owners of single-family and multifamily homes – the series' wide power range makes it possible to select a model suited to the well depth and household water demand.
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Farms and horticultural operations – the higher-powered models in the series supply irrigation systems, sprinklers, and drip lines across larger areas.
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Industrial plants and drainage installations – the all-stainless-steel construction is suitable for continuous operation.
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Installers – the factory-fitted 20 m cable with a plug reduces installation time at typical depths, without the need to join cables.
Applications
The 4" ISP series is intended for drawing and pumping technically clean, untreated water from drilled deep-water wells for single-family and multifamily homes, farms, irrigation systems, and industrial and drainage installations. The pump does not treat water – when using it for other purposes, we recommend ensuring appropriate water treatment.
The pumps operate in a vertical position, in wells with a minimum internal diameter of 115 mm, at a maximum pumped-water temperature of 35°C. The 4" ISP 400 V submersible pump is compatible with standard pressure tanks and pressure-control systems selected according to the scale of the installation.
Features of the 4" ISP series
The 4" ISP series pumps are made entirely of AISI 304 stainless steel – from the suction and discharge body to the impeller and diffuser, ensuring corrosion resistance under typical operating conditions. Individual variants differ in their operating point on the common performance curve and in their power supply, available in 230 V or 400 V versions depending on the model and motor power.
The 230 V version is equipped with a starting box featuring built-in overcurrent protection and a capacitor, while additional motor protection is provided by thermal protection built into the winding.
- Pump type: multistage, submersible, made entirely of stainless steel
- Diameter: 98 mm (4")
- Minimum well diameter: 115 mm
- Power supply: 230 V or 400 V (depending on the model and motor power)
- Power cable length: 20 m, with a plug
- Protection rating: IP68
- Operating mode: continuous
- Operating position: vertical
- Max. liquid temperature: 35°C
- Max. immersion depth: 100 m
- Rotational speed: 2850 rpm
- Materials: suction and discharge body, housing, shaft, rotor, impeller, and diffuser – AISI 304 stainless steel; mechanical seal – SiC/SiC/NBR
IBO – 24-month (2-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
Dambat – a trusted manufacturer of pumps and water-management equipment with quality certificates.
Frequently asked questions (FAQ) – 4" ISP submersible pump
What type of well is the 4" ISP submersible pump suitable for?
The pump is designed for wells with a minimum internal diameter of 115 mm. Before purchasing, it is worth checking the actual diameter of the borehole to avoid installation problems or motor overheating.
Will the 20 m cable be long enough for my well?
The factory-fitted cable is 20 m long and comes with a plug, which makes it possible to avoid extending it in most domestic wells. For deeper boreholes, any further extension should be entrusted to a professional.
What happens if the well runs out of water while the pump is operating?
The pump must not run “dry” – a lack of water may cause overheating and motor damage, and such a fault is not covered by the warranty. To prevent this, it is advisable to install dry-run protection that monitors the water level in the well.
How do I choose the right 4" ISP pump for my needs?
The choice of model depends on the well depth and the amount of water required at the same time – the series includes variants with different head heights and flow rates, from modest domestic requirements to larger agricultural and industrial installations. If you have any questions, we encourage you to contact the technical department.
Where can I buy a 4" ISP submersible pump?
Dambat does not sell directly. 4" ISP series pumps are available from retail partners, installation wholesalers, and authorized online distributors.
What warranty terms apply to the 4" ISP pump?
IBO – 24-month (2-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
