4" ISP 5-20 - submersible pump with 20 m cable
The 4" ISP submersible pump is a multistage IBO model made entirely of stainless steel, designed for drawing and pumping untreated water for single- and multi-family homes, farms, and industrial installations. The factory-fitted 20 m cable with a plug eliminates the need for an additional cable extension at typical installation depths, while the thermal protector built into the winding protects the motor against overload.
Who it's for
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Owners of single- and multi-family homes – the series' wide power range makes it possible to choose a model suited to the well depth and household water demand.
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Farms and horticultural businesses – 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 shortens installation time at typical depths, with no need to join wires.
Applications
The 4" ISP series is designed for drawing and pumping clean, untreated water from deep drilled wells for single- and multi-family homes, farms, irrigation systems, and industrial and drainage installations. The pump does not treat water; if using it for other purposes, we recommend ensuring appropriate treatment.
The pumps operate vertically in wells with a minimum internal diameter of 115 mm and 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 to suit the size 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 housing to the impeller and diffuser, ensuring corrosion resistance under typical operating conditions. Individual models differ in their duty point on the shared performance curve and in their power supply, available at 230 V or 400 V depending on the model and motor power.
The 230 V version comes with a start box featuring a built-in overcurrent protection device and capacitor, while a thermal protector built into the winding provides additional motor protection.
- Pump type: multistage, submersible, entirely made of stainless steel
- Diameter: 98 mm (4")
- Minimum well diameter: 115 mm
- Power supply: 230 V or 400 V (depending on model and motor power)
- Power cable length: 20 m, with 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, casing, shaft, rotor, impeller and diffuser - AISI 304 stainless steel, mechanical seal - SiC/SiC/NBR
IBO - 24 months (2 years) manufacturer's warranty. Warranty and post-warranty service provided by Dambat.
Dambat - a trusted manufacturer of pumps and hydrotechnical 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, check the actual borehole diameter to avoid installation problems or motor overheating.
Is the 20 m cable long enough for my well?
The factory-fitted cable is 20 m long and comes with a plug, so it does not need to be extended in most domestic wells. For deeper boreholes, have any extension carried out by a professional.
What happens if the well runs out of water while the pump is running?
The pump must not run dry - a lack of water can cause overheating and damage to the motor, and such damage is not covered by the warranty. To prevent this, we recommend installing a dry-run protection device that monitors the water level in the well.
How do I choose a 4" ISP pump to suit my needs?
The model you choose depends on the well depth and the amount of water needed at one time. The series includes versions with different delivery heights and flow rates, from modest household needs to larger agricultural and industrial installations. We encourage you to contact our technical department if you have any questions.
Where can I buy a 4" ISP submersible pump?
Dambat does not sell directly. 4" ISP series pumps are available from sales partners, plumbing and heating wholesalers, and authorized online distributors.
What warranty terms apply to the 4" ISP pump?
IBO - 24 months (2 years) manufacturer's warranty. Warranty and post-warranty service provided by Dambat.
