S4 12/13 M 4OL 4" submersible pump for boreholes and wells - 2,2KW - 1x230V DAB.S4 OL

Product detailed description

Vertical submersible pumps are commonly installed in deep wells and boreholes where a reliable water supply is essential. This model is suited for systems requiring continuous operation in municipal, agricultural, and industrial environments. Installers working in civil construction or water management projects will find this unit suitable for applications such as irrigation, fire protection, and general water distribution. The pump operates efficiently in vertical orientation and can be adapted for horizontal mounting with additional cooling measures.

When designing water supply systems, it is important to consider the hydraulic requirements of the site. The IVAR S4 12/13 M 4OL is intended for use with non-corrosive, non-abrasive water containing up to 150 g/m³ of sand. It is not suitable for wastewater or chemically aggressive fluids. The pump must be installed in a well casing with a minimum internal diameter of 99 mm to accommodate the pump body and allow for proper flow dynamics.

Technical parameters

Installation and connection

The IVAR S4 12/13 M 4OL must be installed vertically within the well casing. Secure the pump using standard lifting devices and ensure the cable is routed through a gland to prevent water ingress. The discharge pipe connections vary by model variant: models S4-1 to S4-4 have 1 1/4 inch ports, while S4-8 to S4-16 have 2 inch ports. Thread types are specified according to the manufacturer’s technical documentation. Verify the alignment of the pump with the well casing to avoid mechanical stress during operation.

Common installation errors include incorrect orientation, insufficient clearance between the pump and well wall, and failure to install a check valve. A check valve is recommended to prevent backflow and water hammer. Ensure the electrical supply matches the rated voltage and frequency (50 Hz). When connecting the pump to the control system, follow the manufacturer’s guidelines for phase and neutral wiring to avoid motor damage.

Compatibility and accessories

This pump is compatible with standard borehole casings and well pumps control panels. Additional components such as pressure switches, control valves, and check valves may be required depending on the system design. While no alternative products are listed, installers should consult the manufacturer’s documentation for recommended accessories and system configurations.

Technical background for designers

The IVAR S4 12/13 M 4OL is an axial-flow centrifugal pump driven by a 4OL motor. The motor is sealed with stainless steel AISI 304L housing and features ball bearings lubricated with food-grade oil. The impellers are made of technical polymer, which reduces wear and improves efficiency in accordance with the ErP directive. The pump’s mechanical seal is composed of carbon and ceramic to resist abrasion and leakage.

Stainless steel AISI 304 components are used for the pump casing, shaft, and intake filter, ensuring resistance to corrosion and mechanical stress. The motor is cooled internally, eliminating the need for external cooling systems. For integration into larger water supply networks, the pump can be controlled via pressure switches or variable frequency drives (VFDs) to manage flow and energy consumption.

Service and operation

Regular inspection of the pump’s mechanical seal and bearings is recommended to ensure long-term performance. Check for signs of wear, leakage, or vibration during routine maintenance. The maximum number of starts per hour is 20, so excessive cycling should be avoided to prolong motor life. If sand content in the water exceeds 150 g/m³, the pump’s lifespan may be reduced due to abrasive wear on the impeller and casing.

There are no specific service intervals provided in the technical documentation. However, it is advisable to inspect the pump annually or after extended periods of operation. If the pump is removed for servicing, ensure the motor windings are dry and free from contamination before reinstallation.

Frequently asked questions

Can the IVAR S4 12/13 M 4OL be installed horizontally?
Yes, horizontal installation is possible but requires a cooling jacket to maintain motor temperature within safe limits.

What is the maximum allowable sand content in the water?
The pump is designed for water with up to 150 g/m³ of sand. Exceeding this limit may cause premature wear on internal components.

Is a check valve required for this pump?
An integrated check valve is available depending on the model. If not included, a separate check valve should be installed to prevent backflow.

What materials are used for the impeller and casing?
The impeller is made of technical polymer, while the casing and shaft are constructed from stainless steel AISI 304 for durability and corrosion resistance.