Description
4" STM 4-21 – submersible pump with a 20 m cable
The IBO 4" STM 4-21 submersible pump with a 20 m cable is a multistage centrifugal device with a diameter of 100 mm, powered by a single-phase 230 V supply. The longer, 20 m power cable facilitates installation in deeper wells without the need for extension. Increased sand resistance and floating impellers ensure reliable operation even in water intakes with poorer water quality.
Who is it for?
- Owners of deeper wells – the 20 m cable simplifies installation without the need for hermetically sealed wire connections.
- Single-family homeowners – the 230 V power supply enables installation without a three-phase connection.
- Irrigation system users – the pump supplies sprinklers and drip lines, as well as drainage systems.
- Installers – the factory-fitted 20 m cable shortens installation time and reduces the risk of incorrect wire connections.
Applications
The 4" STM 4-21 submersible pump with a 20 m cable is designed for drawing and pumping technically clean raw water from drilled deep wells and for increasing pressure in the system supplying an installation. It is used for drawing and pumping raw water in single-family and multi-family homes, farms, heat pump installations, and irrigation and drainage systems.
The pump operates in a vertical position, submerged in a well with a minimum internal diameter of 115 mm. The pumped water must not contain mechanical impurities beyond the permissible sand content, and its temperature should not exceed 35°C. The 4" STM 4-21 230V submersible pump is a durable solution for long-term operation in a household. The pump is not a water-treatment device—when using it for other purposes, we recommend ensuring appropriate water preparation.
Features of the 4" STM 4-21 pump with a 20 m cable
The 4" STM 4-21 pump is a multistage centrifugal device with a diameter of 100 mm, powered by a single-phase 230 V supply. This version is factory-fitted with a 20 m power cable, which facilitates installation in deeper wells. The use of floating impellers and increased sand resistance ensure reliable operation in water intakes where standard submersible pumps would suffer accelerated wear. The permissible sand content is up to 5%, and the motor is oil-cooled.
The thermal protection built into the motor winding protects the device against overheating. The suction and discharge housings are made of brass, while the casing, shaft, and rotor are made of AISI 304 stainless steel, and the impellers and diffusers are made of PPO polymer. The mechanical seal operates in a SiC/SiC/NBR configuration.
- Type: multistage, centrifugal submersible pump
- Pump diameter: 100 mm
- Minimum well diameter: 115 mm
- Power supply: 1~ 230 V / 50 Hz
- Protection rating / insulation class: IP68 / class B
- Operating mode: continuous
- Max. liquid temperature: 35°C
- Max. submersion depth: 150 m
- Power cable: 20 m
- Materials: brass, AISI 304 stainless steel, PPO polymer
IBO – 24 months (2 years) manufacturer's warranty. Warranty service and post-warranty service are provided by Dambat.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certificates.
Frequently asked questions (FAQ) – IBO 4" STM 4-21 submersible pump with a 20 m cable
What is the IBO 4" STM 4-21 submersible pump with a 20 m cable used for?
The IBO 4" STM 4-21 submersible pump is designed to draw and pump raw water from drilled deep wells and to increase pressure in the system supplying an installation. Thanks to its 230 V power supply and 20 m cable, it is suitable for domestic installations with a deeper borehole.
How does the version with a 20 m cable differ from the version with a 2 m cable?
Both versions are the same pump and differ only in the length of the factory power cable. The 20 m cable allows the pump to be installed in a deeper borehole without the need to extend the cable with a watertight connection.
How does the 4" STM differ from the 4" ST?
4" STM pumps are powered by single-phase 230 V current, while 4" ST pumps use three-phase 400 V current. The hydraulics of both versions are identical, and the choice depends on the type of power supply available in the installation.
What type of well can the 4" STM 4-21 pump be installed in?
The pump can be installed in a well with a minimum internal diameter of 115 mm, in a vertical position. The maximum submersion depth is 150 m, and the discharge outlet should be at least 2 m above the lowest water level.
Can the 4" STM 4-21 pump handle water containing sand?
The pump has increased resistance to sand thanks to its floating impellers and allows a sand content of up to 5%. However, please note that pumping sandy water still shortens the service life of the working components.
Where can I buy the 4" STM 4-21 submersible pump with a 20 m cable?
As the manufacturer, we do not sell directly. The IBO 4" STM 4-21 submersible pump can be purchased from our commercial partners, plumbing wholesalers, and authorized online distributors.
What warranty covers the 4" STM 4-21 pump?
The IBO 4" STM 4-21 submersible pump is covered by a 24-month (2-year) manufacturer's warranty. Warranty service and post-warranty service are provided by Dambat.
- Power: 2.2 kW,
- Power supply: 1~230 V,
- Frequency: 50 Hz,
- Current draw: 15.6 A,
- Motor speed: 2850 rpm,
- Dimensions: 100/1448 mm
- Weight: kg,
Download: 4_ST_instrukcja_PL-EN-DE.pdf
Download: GARAN_Prawny_obowiazek_zapewnienia_zgodnosci_towaru_z_umowa.pdf
4" STM 4-21 – submersible pump with a 20 m cable
The IBO 4" STM 4-21 submersible pump with a 20 m cable is a multistage centrifugal device with a diameter of 100 mm, powered by a single-phase 230 V supply. The longer, 20 m power cable facilitates installation in deeper wells without the need for extension. Increased sand resistance and floating impellers ensure reliable operation even in water intakes with poorer water quality.
Who is it for?
- Owners of deeper wells – the 20 m cable simplifies installation without the need for hermetically sealed wire connections.
- Single-family homeowners – the 230 V power supply enables installation without a three-phase connection.
- Irrigation system users – the pump supplies sprinklers and drip lines, as well as drainage systems.
- Installers – the factory-fitted 20 m cable shortens installation time and reduces the risk of incorrect wire connections.
Applications
The 4" STM 4-21 submersible pump with a 20 m cable is designed for drawing and pumping technically clean raw water from drilled deep wells and for increasing pressure in the system supplying an installation. It is used for drawing and pumping raw water in single-family and multi-family homes, farms, heat pump installations, and irrigation and drainage systems.
The pump operates in a vertical position, submerged in a well with a minimum internal diameter of 115 mm. The pumped water must not contain mechanical impurities beyond the permissible sand content, and its temperature should not exceed 35°C. The 4" STM 4-21 230V submersible pump is a durable solution for long-term operation in a household. The pump is not a water-treatment device—when using it for other purposes, we recommend ensuring appropriate water preparation.
Features of the 4" STM 4-21 pump with a 20 m cable
The 4" STM 4-21 pump is a multistage centrifugal device with a diameter of 100 mm, powered by a single-phase 230 V supply. This version is factory-fitted with a 20 m power cable, which facilitates installation in deeper wells. The use of floating impellers and increased sand resistance ensure reliable operation in water intakes where standard submersible pumps would suffer accelerated wear. The permissible sand content is up to 5%, and the motor is oil-cooled.
The thermal protection built into the motor winding protects the device against overheating. The suction and discharge housings are made of brass, while the casing, shaft, and rotor are made of AISI 304 stainless steel, and the impellers and diffusers are made of PPO polymer. The mechanical seal operates in a SiC/SiC/NBR configuration.
- Type: multistage, centrifugal submersible pump
- Pump diameter: 100 mm
- Minimum well diameter: 115 mm
- Power supply: 1~ 230 V / 50 Hz
- Protection rating / insulation class: IP68 / class B
- Operating mode: continuous
- Max. liquid temperature: 35°C
- Max. submersion depth: 150 m
- Power cable: 20 m
- Materials: brass, AISI 304 stainless steel, PPO polymer
IBO – 24 months (2 years) manufacturer's warranty. Warranty service and post-warranty service are provided by Dambat.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certificates.
Frequently asked questions (FAQ) – IBO 4" STM 4-21 submersible pump with a 20 m cable
What is the IBO 4" STM 4-21 submersible pump with a 20 m cable used for?
The IBO 4" STM 4-21 submersible pump is designed to draw and pump raw water from drilled deep wells and to increase pressure in the system supplying an installation. Thanks to its 230 V power supply and 20 m cable, it is suitable for domestic installations with a deeper borehole.
How does the version with a 20 m cable differ from the version with a 2 m cable?
Both versions are the same pump and differ only in the length of the factory power cable. The 20 m cable allows the pump to be installed in a deeper borehole without the need to extend the cable with a watertight connection.
How does the 4" STM differ from the 4" ST?
4" STM pumps are powered by single-phase 230 V current, while 4" ST pumps use three-phase 400 V current. The hydraulics of both versions are identical, and the choice depends on the type of power supply available in the installation.
What type of well can the 4" STM 4-21 pump be installed in?
The pump can be installed in a well with a minimum internal diameter of 115 mm, in a vertical position. The maximum submersion depth is 150 m, and the discharge outlet should be at least 2 m above the lowest water level.
Can the 4" STM 4-21 pump handle water containing sand?
The pump has increased resistance to sand thanks to its floating impellers and allows a sand content of up to 5%. However, please note that pumping sandy water still shortens the service life of the working components.
Where can I buy the 4" STM 4-21 submersible pump with a 20 m cable?
As the manufacturer, we do not sell directly. The IBO 4" STM 4-21 submersible pump can be purchased from our commercial partners, plumbing wholesalers, and authorized online distributors.
What warranty covers the 4" STM 4-21 pump?
The IBO 4" STM 4-21 submersible pump is covered by a 24-month (2-year) manufacturer's warranty. Warranty service and post-warranty service are provided by Dambat.