4" ISP 3-16 – submersible pump
The 4" ISP submersible pump is a multistage IBO pump made entirely of stainless steel, designed for drawing and pumping raw water in single- and multi-family homes, farms, and industrial installations. Thermal protection built into the winding protects the motor against overload.
Who it is 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 operations – higher-output models in the series supply irrigation systems, sprinklers, and drip lines across larger areas.
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Industrial plants and dewatering systems – the all-stainless-steel construction is suitable for continuous operation.
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Installers – the short factory cable allows the extension length to be selected precisely for the well depth, without unnecessary excess cable.
Application
The 4" ISP series is designed for drawing and pumping clean, technically untreated raw water from drilled deep wells for single- and multi-family homes, farms, irrigation systems, industrial installations, and dewatering systems. 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 230 V / 400 V submersible pump works with standard pressure tanks and pressure-control equipment selected for the scale of the installation.
Features of the 4" ISP series
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 shared 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 with built-in overcurrent protection and a capacitor, while additional motor protection is provided by thermal protection built into the winding.
- 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 the model and motor power)
- Power cable length: 1.5 m
- 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 months (2 years) manufacturer’s warranty. Dambat provides warranty and post-warranty service.
Dambat – a trusted manufacturer of pumps and water engineering equipment with quality certificates.
Frequently asked questions (FAQ) – 4" ISP submersible pump
What 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 borehole diameter to avoid installation problems or motor overheating.
Is a 1.5 m cable long enough for my well?
The factory cable is 1.5 m long, so in most cases it must be extended to reach the required well depth. The watertight connection should be entrusted to a well specialist or service technician to avoid damaging the insulation and flooding the motor.
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 worth installing dry-run protection that monitors the water level in the well.
How do I choose a 4" ISP pump for my needs?
The model choice depends on the well depth and the amount of water needed simultaneously – the series includes variants with different delivery heads and capacities, from modest household needs to larger agricultural and industrial installations. If in doubt, 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 commercial partners, plumbing wholesalers, and authorized online distributors.
What warranty terms apply to the 4" ISP pump?
IBO – 24 months (2 years) manufacturer’s warranty. Dambat provides warranty and post-warranty service.
