4" ST 4-16 – Submersible Pump
The IBO 4" ST 4-16 submersible pump is a multistage centrifugal device with a diameter of 100 mm, powered by a three-phase 400 V supply. Thanks to its increased resistance to sand and floating impellers, it also operates reliably in water intakes with poorer water quality. It is used to draw and pump raw water from a deep borehole for use in domestic and agricultural households and irrigation systems.
Who is it for?
- Owners of single- and multifamily homes with their own deep borehole – for a constant, reliable supply and pumping of raw water.
- Farms – increased resistance to sand and continuous operation are suitable for intensive water intake.
- Users of irrigation systems – the pump supplies sprinklers, drip lines, and drainage systems.
- Installers – three-phase power and a durable design make it easier to select the pump for more demanding installations.
Application
The 4" ST 4-16 submersible pump is designed to draw and pump technically clean raw water from drilled deep wells. It is used in domestic and agricultural households with their own water intake, heat pump installations, and irrigation and drainage systems. The pump is not a water treatment device – when using it for other purposes, we recommend ensuring appropriate water treatment.
The pump operates in a vertical position, submerged in a well with a minimum internal diameter of 115 mm. The raw water being pumped must not contain mechanical impurities apart from the permitted sand content, and its temperature should not exceed 35°C. The 4" ST 4-16 400V submersible pump is a durable solution for long-term operation on a farm.
Features of the 4" ST 4-16 pump
The 4" ST 4-16 pump is a multistage centrifugal device with a diameter of 100 mm, powered by a three-phase 400 V supply. The use of floating impellers and increased resistance to sand ensure reliable operation in water intakes where standard submersible pumps would suffer accelerated wear. The permitted sand content is up to 5%, and the motor is oil-cooled.
Thermal protection built into the motor winding protects the device from overheating. The suction and discharge bodies are made of brass, while the housing, shaft, and rotor are made of AISI 304 stainless steel, and the impellers and diffusers are made of PPO polymer. The mechanical seal uses a SiC/SiC/NBR arrangement. The pump is supplied as standard with a 20 m power cable.
- Type: multistage submersible centrifugal pump
- Pump diameter: 100 mm
- Minimum well diameter: 115 mm
- Power supply: 3~ 400 V / 50 Hz
- Protection rating / insulation class: IP68 / class B
- Operating mode: continuous
- Max. liquid temperature: 35°C
- Max. immersion depth: 150 m
- Power cable: 2 m
- Materials: brass, AISI 304 stainless steel, PPO polymer
IBO – 24-month (2-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certificates.
Frequently Asked Questions (FAQ) – 4" ST 4-16 submersible pump
What is the 4" ST 4-16 submersible pump used for?
The IBO 4" ST 4-16 pump is used to draw and pump technically clean raw water from drilled deep wells. It is suitable for domestic and agricultural households as well as irrigation systems.
What is the difference between the 4" ST and 4" STM?
The 4" ST pumps are powered by three-phase 400 V current, while the 4" STM pumps use single-phase 230 V current. The hydraulics of both versions are the same, and the choice depends on the type of power supply available in the installation.
In which well can the 4" ST 4-16 pump be installed?
The pump can be installed in a well with a minimum internal diameter of 115 mm, in a vertical position. The maximum immersion depth is 150 m, and the discharge connection should be located at least 2 m above the lowest water level.
Can the 4" ST 4-16 pump handle water containing sand?
The pump has increased resistance to sand thanks to its floating impellers and permits a sand content of up to 5%. However, remember that pumping sandy water still shortens the service life of the working components.
Which liquids must not be pumped with the 4" ST 4-16 pump?
The pump must not be used for salt water or water containing corrosive, flammable, petroleum-derived, or long-fiber contaminants. It is also unsuitable for food products or water with an excessively high mineral content.
Where can the 4" ST 4-16 submersible pump be purchased?
As the manufacturer, we do not sell directly. The IBO 4" ST 4-16 submersible pump can be purchased from our commercial partners, installation wholesalers, and authorized online distributors.
What warranty does the 4" ST 4-16 pump have?
The IBO 4" ST 4-16 submersible pump is covered by a 24-month (2-year) manufacturer's warranty. Warranty and post-warranty service is provided by Dambat.
