S4 1/13 M 4OL 4" submersible pump for boreholes and wells - 0,37KW - 1x230V DAB.S4 OL

Product detailed description

Submersible pumps of the S4 series are commonly used in civil and industrial applications for water abstraction from wells and boreholes. These units are installed in vertical orientation and handle the supply of non-aggressive, clean water to distribution systems. They can be integrated into irrigation, fire protection, and washing systems. The design ensures efficient performance in environments with limited space and high head requirements. The pump must be installed in a well casing with an internal diameter exceeding 99 mm and should be positioned below the water level to prevent dry running. Horizontal installation is possible but requires additional cooling measures.

The pump operates within a flow range up to 21.6 m³/h and a total head up to 427 m. The water temperature must remain between 0°C and 40°C, and the liquid must be free from abrasive and solid particles. The maximum allowable sand content is 150 g/m³. The pump is suitable for continuous operation under these conditions and is constructed to withstand long-term immersion in water. The pump’s housing and shaft are made from AISI 304 stainless steel, ensuring resistance to corrosion and mechanical stress.

Technical parameters

Installation and connection

Installation begins with a site survey to confirm the well dimensions and water level. The pump is lowered vertically into the well using the suspension eyes and secured with a cable. The discharge pipe must be connected to the pump’s outlet, which varies in size depending on the model (1 1/4 inch or 2 inch). A pressure tank and control panel should be installed upstream to manage flow and pressure fluctuations. The electrical connections must be made in a dry, protected location, and the pump must be grounded according to local regulations. Common errors include incorrect alignment, insufficient water coverage, and improper grounding, all of which can lead to premature failure or reduced efficiency.

Compatibility and accessories

The IVAR S4 1/13 M 4OL is compatible with standard well casings and piping systems using 1 1/4 inch or 2 inch connections. It can be paired with pressure switches, flow meters, and control panels to automate operation and monitor performance. Additional accessories such as a cooling jacket may be required for horizontal installations. The pump is designed for integration with both single-phase and three-phase power supplies, making it adaptable to different electrical infrastructures. No specific related products are listed for this model.

Technical background for designers

The S4 1/13 M 4OL operates on the principle of centrifugal pumping, where the impeller accelerates water radially outward, creating a pressure differential. The motor is enclosed in an oil-filled casing to provide insulation and reduce thermal stress. The stainless steel components ensure resistance to corrosion and mechanical fatigue, while the technopolymer impellers improve efficiency in accordance with EU Eco Design directives. The pump’s integration into the system depends on factors such as well depth, water quality, and system demand. Long-term efficiency is influenced by proper alignment, regular inspection, and adherence to recommended operating conditions.

Service and operation

Regular inspection of the pump’s mechanical seal and bearings is necessary to detect wear or leakage. The pump should be checked for abnormal vibrations, noise, and temperature increases, which may indicate misalignment or blockage. The maximum number of starts per hour is 20, and exceeding this limit can cause overheating and damage to the motor. No specific service intervals are provided in the brief, but maintenance should be scheduled based on usage and operating conditions. The pump’s IP68 rating ensures protection against water ingress during normal operation, but it should not be operated in dry conditions to avoid damage.

Frequently asked questions

Can the IVAR S4 1/13 M 4OL be installed horizontally?
Yes, horizontal installation is possible but requires the addition of a cooling jacket to ensure adequate heat dissipation from the motor.

Is the pump suitable for aggressive or viscous liquids?
No, the pump is designed for non-aggressive, non-viscous liquids similar to water. Aggressive or viscous media may damage the internal components and void the warranty.

What is the maximum allowable sand content in the water?
The maximum allowable sand content is 150 g/m³. Exceeding this limit may cause abrasion to the impeller and other internal parts.

Can the pump be connected to a three-phase power supply?
Yes, the pump is compatible with both single-phase (1x230 V) and three-phase (3x230 V, 3x400 V) power supplies, allowing flexibility in different electrical systems.