Submersible pump 4 SD 10-22 / 400V - RTS

Product detailed description

This submersible pump is commonly installed in deep water extraction systems for municipal supplies, agricultural irrigation, industrial processes and fire protection applications. The modular design allows for easier maintenance compared to monoblock units, while the thermal overload protection ensures safe operation under varying load conditions. Typical installations include new boreholes, existing wells, water towers and collection shafts where water quality contains suspended abrasive particles.

The 400V three-phase motor is suitable for commercial and industrial power systems. The pump’s dimensions allow it to fit in standard casing pipes, and the 1m supply cable length requires careful planning during installation to ensure proper positioning in the water column. The floating impeller design accommodates minor alignment issues in fresh drillings and helps maintain hydraulic performance in variable water levels.

Technical parameters

Installation and connection

Installation begins with verifying the casing pipe diameter matches the pump’s 9.8 cm width. The 1m supply cable should be routed through a separate conduit to prevent mechanical damage. Secure mounting is required to avoid vibration-induced wear on seals and bearings. The pump must be fully submerged at all times to prevent dry running, which can cause rapid overheating despite thermal protection. A common mistake is neglecting to disinfect new water sources before commissioning, which can lead to early clogging and reduced efficiency. Always verify that the power circuit includes a dedicated circuit breaker matching the motor’s current draw.

Compatibility and accessories

For complete system functionality, installers should pair it with a pressure tank, control panel and check valve. Additional requirements include a filtration system to manage particulate matter and a separate disinfection system such as PolyWELL for new installations. While no alternative models are listed, similar IBO submersibles may offer different power ratings or sealing configurations depending on site conditions.

Technical background for designers

The pump operates via centrifugal force generated by the rotating impeller, which accelerates water radially outward. The modular construction separates the hydraulic components from the electric motor, allowing independent replacement of worn parts. Cast iron impellers and stainless steel shafts resist corrosion in freshwater environments, though abrasive content still affects long-term reliability. The thermal overload protection prevents motor burnout during overloads or low-flow conditions. System designers should account for friction losses in the piping network and ensure the static head plus dynamic losses remain within the pump’s operational range. Water temperature and viscosity also influence efficiency, particularly in cold climates where viscosity increases significantly.

Service and operation

Regular inspection of the intake screen and impeller is recommended to detect abrasion or clogging. Check the integrity of electrical connections and insulation resistance annually. Thermal overload tripping frequency can indicate excessive load or inadequate cooling. While specific service intervals are not provided, any unusual noise, vibration or pressure fluctuations warrant immediate investigation. The modular design facilitates quick replacement of hydraulic components without removing the entire unit from the well, reducing downtime during repairs.

Frequently asked questions

Can the IBO 4 SD 10-22 be used in brackish water sources?
Brackish water may accelerate corrosion of non-stainless steel components. Extended use in such conditions requires additional corrosion protection measures not specified in the standard configuration.

Is this pump compatible with soft-start controllers?
Soft starters are acceptable as long as they do not exceed the motor’s rated current. They help reduce mechanical stress during startup in high-inertia systems.

What is the minimum submergence depth required for reliable operation?
While the pump can operate at depths greater than 8m, continuous immersion is necessary to prevent air ingestion and subsequent cavitation damage.

How does the RTS designation affect performance in sandy water?
The sand-resistant design extends component life by minimising abrasive wear. However, it does not eliminate the need for upstream filtration to prevent large particulate from entering the system.