Submersible pump 4 SKM 150

Product detailed description

This submersible pump model is commonly deployed in residential and small-scale water supply systems where reliable water extraction from enclosed sources such as wells, boreholes or storage tanks is required. It is suitable for environments where the water is free from solid particles and abrasive substances, making it ideal for primary water supply lines in homes, gardens or small agricultural setups. Installers typically encounter this pump in applications involving low-space water reservoirs or where surface-mounted pumps are impractical due to spatial constraints.

The 4 SKM 150 is engineered to operate efficiently under conditions of moderate water demand, making it particularly suitable for use in domestic settings where consistent water delivery is essential. Its compact design allows for deployment in narrow shafts or tanks, while its electrical specifications ensure compatibility with standard domestic power supplies. Technicians installing this unit should consider system layout, tank geometry and potential future expansion when planning the integration of this pump into the water supply network.

Technical parameters

EAN	5903111344078
Length of supply cable (m)	15
Maximum flow rate (l/min)	50
Pump voltage (V)	230 V
Dimensions H x W x D (cm)	55x9.7
Pump head (m)	110
Weight	17 kg
Code	PR_6873
Brand	IBO

The maximum flow rate of 50 l/min determines the capacity of the pump and helps in selecting the appropriate pipe size and system layout. The 110 m head indicates how high the pump can lift water vertically, which is critical when designing the pumping station elevation and ensuring sufficient pressure for household fixtures. The 230 V power requirement ensures compatibility with standard single-phase electrical systems in domestic or industrial settings. The 15 m cable length provides flexibility in positioning the pump at various depths within the well or tank.

Installation and connection

Before installation, verify that the water source contains no suspended solids or abrasive particles, as these can damage internal components. Ensure that the pump is fully submerged during operation to prevent dry running, which can lead to overheating. The pump is supplied with a 15 m power cable, allowing it to be placed at depths up to 20 m below the water surface. Connect the power cable to a dedicated circuit with appropriate protection devices, such as fuses or circuit breakers, rated according to the pump’s electrical load.

Use a sealing gland to secure the cable entry point and maintain a watertight seal. The pump body must remain vertical during installation to ensure even wear of the bearings and proper alignment of the impeller. Avoid sharp bends or kinks in the discharge pipe to maintain hydraulic efficiency. Confirm that all electrical connections are made in a dry environment and that the pump is grounded correctly to prevent electrical hazards. A common mistake is neglecting to install an external check valve to prevent backflow, despite the built-in internal check valve. Always follow local electrical codes and safety standards during installation.

Compatibility and accessories

The IBO 4 SKM 150 is compatible with standard water storage tanks and wells equipped with access points suitable for its dimensions. To ensure optimal performance, pair it with a pressure tank and control system that can manage the pump’s operational frequency and prevent excessive cycling. An external check valve is recommended to complement the internal one and prevent reverse flow. For systems requiring additional filtration, integrate a sediment filter upstream of the pump to protect against fine particulate matter.

Installers should also consider the need for a float switch or level sensor if the application involves fluctuating water levels. These accessories help automate pump operation and prevent dry running. The pump requires a stable mounting platform to avoid mechanical stress on the motor and pump housing. In larger systems, a variable speed drive might be beneficial to adjust the pump speed based on demand. Ensure that all accessories are sourced from compatible manufacturers to maintain warranty and performance guarantees.

Technical background for designers

The IBO 4 SKM 150 operates using an induction motor constructed from stainless steel, cooled by mineral oil, which provides thermal stability and insulation. The motor is self-lubricating and does not require regular oil changes, reducing maintenance requirements. The mechanical seal is made from graphite, offering resistance to wear and leakage. The built-in check valve prevents contaminants from re-entering the pump housing, although an external version is advised for higher reliability.

The pump’s design integrates seamlessly into closed-loop or open-loop water supply systems. Its compact dimensions allow for deployment in tight spaces, and its high-efficiency impeller contributes to energy savings. The material selection—particularly the corrosion-resistant components—ensures long-term durability in wet environments. Designers should account for the pump’s maximum temperature limit of 35°C and ensure that the water supply remains within this range to prevent degradation of internal seals and gaskets. Proper ventilation around the pump chamber is also important to dissipate heat generated during operation.

Service and operation

Regular visual inspections are recommended to check for signs of wear, leaks or blockages in the pump housing and discharge line. Listen for abnormal noise or vibration during operation, which could indicate bearing wear or misalignment. Verify the integrity of the electrical connections and insulation to prevent short circuits. If the pump shows reduced performance over time, disassemble and clean the impeller and internal passages, removing any accumulated debris or scale.

Although the pump is self-maintaining in terms of lubrication, periodic checks of the mechanical seal are advisable to detect early signs of leakage. Replace the seal if any water seepage is observed. If the pump is not used for extended periods, drain it of water to prevent corrosion and store it in a dry location. No scheduled service intervals are specified in the provided documentation, so maintenance should be performed based on operational conditions and observed performance.

Frequently asked questions

Can the IBO 4 SKM 150 be used in a system with fluctuating water levels?
Yes, the pump is suitable for such systems, but it is recommended to integrate a float switch or level sensor to prevent dry running and extend the service life.

Is an external check valve necessary alongside the built-in one?
While the pump has an internal check valve, an external one is strongly recommended to provide additional protection against backflow and contamination.

What type of water is suitable for this pump?
The pump is designed for clean, non-aggressive water without solid particles or abrasives. It is not suitable for water containing sand, silt or chemical residues.

How deep can the pump be submerged?
The pump can be submerged up to a depth of 20 m below the water surface. Ensure that the power cable is properly secured to avoid damage during installation.