Domestic waterworks with submersible pump 3 - SDM24 with frequency converter - RTS

Product detailed description

Domestic water systems with submersible pumps are commonly used in residential, agricultural, and small industrial settings where a reliable water supply is essential. These systems are particularly suited for properties that draw water from deep wells, boreholes, or narrow shafts. The system ensures a steady and controlled water supply by maintaining a constant pressure within the distribution network. Installers often encounter scenarios where water sources are located at significant depths, and the system must operate continuously with minimal maintenance. The integration of a frequency converter allows for precise pressure control, reducing mechanical stress on the system and improving energy efficiency.

When installing such a system, it is important to consider the depth of the water source, the required flow rate, and the pressure demands of the end application. The pump must be positioned correctly within the water source to avoid air intake and ensure stable operation. The system is also suitable for use in automatic pressure stations and can support irrigation, fire protection, and domestic water supply in both single-family homes and multi-unit buildings.

Technical parameters

The technical parameters of this system are critical for proper sizing and integration into existing or new water supply networks. The maximum flow rate of 70 l/min and a head of 80 m indicate the system's capacity to deliver water over long distances and through elevated structures. The 230 V supply voltage is standard for single-phase systems, and the 20 m power cable length allows for flexible installation near the water source. The dimensions of 120 x 7.5 cm define the physical space required for the pump and control unit.

Installation and connection

Installation of the system involves positioning the submersible pump at the required depth within the water source. The pump is connected to the frequency converter, which is mounted above ground. The system includes a pressure tank, check valve, and necessary fittings for secure and leak-free operation. The pump is connected using a 5/4" x 1" reduced fitting, and a 32 x 1" threaded adapter is included for compatibility with standard piping. It is important to ensure that the pump is fully submerged and that the cable is routed without kinks or bends to prevent damage. Common installation mistakes include incorrect pump depth, poor cable routing, and failure to secure the pressure tank properly.

Compatibility and accessories

This system is compatible with standard domestic and agricultural water supply systems. It is designed to work with pressure tanks, control panels, and irrigation systems that require a stable and adjustable water supply. The system includes a pressure tank, check valve, and fittings for immediate use. Additional accessories such as expansion vessels, pressure switches, and control panels may be required depending on the specific application. Related products include pressure regulators, flow meters, and additional submersible pumps for larger installations.

Technical background for designers

The system operates by using a submersible pump to draw water from the source and deliver it to the distribution network. The frequency converter adjusts the motor speed to maintain a constant pressure, reducing energy consumption and wear on the pump. The pump is constructed with stainless steel components to resist corrosion and ensure long-term durability. The hydraulic section is separated from the motor, allowing for easier maintenance and repair. The pump is designed to handle abrasive materials such as sand, making it suitable for use in wells with poor water quality. The integration of the frequency converter allows for smooth motor startup and reduces mechanical stress on the system. The pump's performance is influenced by the depth of the water source, the condition of the water, and the efficiency of the control system.

Service and operation

Regular inspection of the pump and control system is recommended to ensure reliable operation. The system includes thermal protection and safeguards against dry running, low water levels, and electrical faults. These features help prevent damage and extend the system's service life. It is important to monitor the pressure tank for air pressure and water level to maintain optimal performance. The system requires minimal maintenance, and any issues can typically be resolved quickly due to the modular design of the pump and control unit. No specific service intervals are provided, but the system is designed for continuous operation with minimal downtime.

Frequently asked questions

Can the pump be used in wells with high sand content?
Yes, the pump is designed with increased resistance to sand and other abrasive materials, making it suitable for use in wells with poor water quality.

Is the pump suitable for continuous operation?
Yes, the system is designed for continuous operation and includes thermal protection and safeguards against dry running and low water levels.

Can the system be integrated with an automatic pressure station?
Yes, the system is compatible with automatic pressure stations and can be used to supply water to residential, agricultural, and small industrial applications.

What is the maximum depth from which the pump can draw water?
The pump is suitable for wells with a depth of more than 8 m and can be submerged up to 50 m below the water surface.