Domestic waterworks with submersible pump 2,5" STM 24/100L - RTS

Product detailed description

This submersible pump water system is commonly installed in residential homes, summer cottages, schools, and agricultural facilities where a reliable water supply is essential. It is particularly suited for properties relying on boreholes or wells exceeding 8 m in depth, especially those with high levels of sand or other abrasive materials in the water. The system integrates a submersible pump, pressure tank, pressure switch, check valve, and necessary fittings to create a complete water supply solution. Installers typically work with this system in off-grid or rural environments where mains water is unavailable.

The design accommodates both vertical and horizontal installation of the pressure tank, ensuring flexibility during setup. The inclusion of a 20 m power cable allows for placement of the pump at appropriate depths while maintaining a safe distance from the surface control components. The system is intended for potable and utility water use, making it suitable for drinking water supplies, irrigation, and garden watering.

Technical parameters

EAN	8585054501533
Length of power cable (m)	20
Maximum flow rate (l/min)	45
Pump voltage (V)	230 V
Dimensions H x W x D (cm)	120 x 6.35
Pump head (m)	66
Weight	26.35 kg
Code	PR_39992
Brand	AQUA OLA

The maximum flow rate of 45 l/min ensures sufficient capacity for domestic and small-scale irrigation demands. A head of 66 m means the pump can deliver water over significant vertical distances, which is crucial when sourcing from deep wells. The 20 m cable length provides flexibility in positioning the pump within the borehole. The 230 V operating voltage requires a single-phase power supply, which is standard in most European domestic settings. The 120 x 6.35 cm dimensions define the external tank size, which is compact enough for most property layouts. These parameters assist in determining the suitability of the system for specific site conditions and help avoid under-sizing or over-specification.

Installation and connection

Begin by selecting a suitable location for the pressure tank, ensuring it is accessible for future maintenance and positioned away from direct sunlight and freezing temperatures. Secure the tank using the provided suspension device, which is integrated into the 20 m power cable. Connect the pump inlet to the well casing using a 1-inch coupling and the provided adapters with internal and external threading (32 x 1").

Attach the pressure switch and pressure tank according to the manufacturer’s instructions, ensuring the switch is set to the correct pressure range. Install the check valve upstream of the pressure tank to prevent backflow. Connect the pressure switch to the electrical supply using a 230 V circuit with proper earthing. Verify all mechanical connections are leak-free and tighten all threaded joints securely.

Common installation errors include incorrect pressure switch settings, improper sealing of pipe joints, and failure to ground the pump. Always test the system with the tank empty before filling it with water to identify any leaks or misconnections early. Ensure the pump is fully submerged before starting to avoid dry running, which can cause motor damage.

Compatibility and accessories

This system is compatible with most standard borehole and well configurations. It includes all essential components for immediate operation, such as the submersible pump, pressure tank, pressure switch, check valve, connecting hose, and ball valve. However, additional piping, filters, and control panels may need to be sourced separately depending on the application requirements.

Installers should also consider adding a sediment filter if the water contains high levels of particulate matter. For larger properties or irrigation systems, supplementary pressure tanks or expansion vessels might be required to maintain consistent water pressure. The system is suitable for integration into existing plumbing networks, provided the pipe diameters match the 1-inch connection points.

Technical background for designers

The submersible pump operates using an electric motor driving a centrifugal impeller. The floating impeller design reduces wear caused by sand and other abrasive particles, making it ideal for newly drilled or contaminated wells. The motor housing is sealed against water ingress, allowing operation fully submerged in liquid. The pump is constructed from durable materials to withstand long-term exposure to water and corrosive elements.

Integration into a closed-loop system requires careful attention to hydraulic balance and pressure regulation. The pressure tank serves as a buffer to reduce the frequency of pump cycling, extending the lifespan of the motor and reducing energy consumption. The system’s efficiency is influenced by factors such as well yield, pipe friction losses, and elevation changes between the pump and point of use.

Service and operation

Regular inspection of the pressure tank for air pressure loss and waterlogging is recommended. If the tank becomes waterlogged, drain it and recharge the air chamber to the specified pressure. Check the pressure switch contacts for wear and ensure the check valve remains free from debris. Monitor the pump for unusual noise or vibration, which could indicate bearing wear or impeller damage.

Periodically inspect all mechanical connections for signs of leakage and re-tighten where necessary. Clean the pump intake screen to prevent blockage from sediment buildup. While no scheduled service intervals are specified, these checks should be performed annually or after periods of heavy use to ensure continued performance and longevity of the system.

Frequently asked questions

Can the pump operate in water with high sand content?
Yes, the floating impeller design minimizes abrasion from sand, making the system suitable for wells with particulate-laden water.

Is the pressure tank fixed upright or horizontal?
The pressure tank is designed for either orientation; it includes a mounting system for both configurations.

What is the maximum allowable depth for installation?
There is no defined maximum depth, but the pump is optimally suited for wells exceeding 8 m due to its head capability.

Can this system be used for irrigation purposes?
Yes, the system supports irrigation and garden watering through its flow rate and pressure characteristics.