S4 8/15 T 4OL 4" submersible pump for boreholes and wells - 2,2kW - 3x230V DAB.S4 OL

Product detailed description

This submersible pump is designed for installation in vertical boreholes and wells with internal diameters exceeding 4 inches. It is commonly used in civil, industrial, and agricultural applications for water abstraction, distribution, and pressurisation. The pump is suited for use in irrigation systems, fire protection, and cleaning systems. It is intended for use with clean, non-abrasive, non-corrosive liquids with properties similar to water. The unit is built for reliable performance in environments where high flow rates and elevated head are required.

Due to its compact design and high-efficiency impellers, the IVAR S4 8/15 T 4OL can be integrated into both small-scale and large-scale water supply systems. The pump’s stainless steel casing and components ensure durability in corrosive conditions. It is suitable for continuous operation and is often used in remote or hard-to-reach locations where access for maintenance is limited. The unit is designed for vertical installation but can also be mounted horizontally with additional cooling measures.

Technical parameters

Material	of the impellers
Code	60190832
Brand	IVAR

The technical parameters define the pump’s operational limits and are essential for proper system sizing. The maximum flow rate of 21.6 m³/h and head of 427 m allow for precise matching to system demand. The temperature range of 0°C to +40°C ensures suitability for most ambient conditions. The IP68 rating confirms full submersion capability, and the motor class F insulation supports long-term thermal stability.

Installation and connection

To install the IVAR S4 8/15 T 4OL, the pump must be lowered vertically into the well using a suitable cable or support system. The discharge port size varies depending on the model suffix: models S4-1 to S4-4 have a 1 1/4-inch outlet, while S4-8 to S4-16 have a 2-inch outlet. Ensure that the discharge line is properly supported and aligned to prevent stress on the pump housing. The pump should be connected to a 3x230V power supply, with appropriate circuit protection and voltage stabilisation to prevent damage during startup. Verify that the well casing is free from debris before lowering the pump and ensure that the intake screen is fully submerged. Common installation errors include incorrect orientation, insufficient submersion depth, and failure to secure the pump’s suspension system, all of which can lead to mechanical stress or overheating.

Compatibility and accessories

This pump is compatible with standard 4-inch well casings and can be integrated with pressure tanks, control panels, and flow meters. Additional components such as check valves, strainers, and non-return valves may be required depending on the system configuration. For horizontal installation, a cooling jacket is recommended to prevent overheating. The pump is designed to work with stainless steel piping and fittings to maintain chemical compatibility with the pumped medium. No specific related products are listed for this model, but system designers should consider complementary equipment based on the application requirements.

Technical background for designers

The IVAR S4 8/15 T 4OL operates on a centrifugal principle, using polymer impellers to generate flow and pressure. The motor is sealed within a stainless steel housing and cooled by food-grade lubricant, ensuring long-term reliability in submerged conditions. The stainless steel AISI 304L casing and components resist corrosion and wear, while the carbon-ceramic mechanical seal prevents leakage. The pump’s design complies with the EU ErP directive, with an MEI index of ≥ 0.4, indicating high energy efficiency. The system integration should account for the pump’s maximum submersion depth of 250 m and its ability to handle up to 150 g/m³ of sand. Proper alignment with the well casing and adequate flow clearance are essential to avoid cavitation and mechanical wear.

Service and operation

Routine checks should include verifying the integrity of the mechanical seal, inspecting the intake screen for blockages, and confirming the stability of the suspension system. The pump is rated for up to 20 starts per hour, and frequent cycling should be avoided to reduce mechanical stress. No scheduled service intervals are specified in the brief, but periodic inspections are recommended for long-term installations. The IP68 rating ensures that the pump remains operational under full immersion, but damage from mechanical impact or chemical exposure should be avoided. If the pump fails to start or shows reduced performance, the cause may be electrical, hydraulic, or mechanical, and further diagnosis is required.

Frequently asked questions

Can the IVAR S4 8/15 T 4OL be used in horizontal installations?
Yes, but a cooling jacket is recommended to prevent overheating and ensure stable operation.

What is the maximum allowable sand content in the pumped water?
The pump is designed to handle up to 150 g/m³ of sand, provided the particles are non-abrasive and do not exceed the specified grain size.

Is the motor compatible with both single-phase and three-phase power supplies?
The motor is compatible with 3x230V and 3x400V three-phase power supplies. Single-phase operation is not supported for this model.

Can the pump be used with chemically neutral liquids other than water?
Yes, provided the liquid is non-aggressive, non-viscous, and has properties similar to water. Aggressive or abrasive fluids are not suitable for this pump.