DAB.S4 OL - 4" submersible pumps with oil-filled motor
The DAB.S4 OL series includes 4-inch submersible centrifugal pumps designed for use in wells and boreholes. These pumps are suitable for pumping clean water, pressurization, and water supply in residential, commercial, and industrial applications. They are also used in irrigation, fire protection, and washing systems. The pumps operate with a single-phase or three-phase voltage and are built for vertical installation, though horizontal installation is possible with a cooling jacket.
Constructed with stainless steel components and technopolymer impellers, these pumps ensure durability and efficiency. The oil-filled motor is sealed and cooled with food-grade lubricant, and the system includes a carbon-ceramic mechanical seal to prevent leakage. The pumps are certified to WRAS and ACS standards and comply with the ErP directive for energy efficiency.
How to choose
- Match the pump’s discharge size (1 1/4" or 2") to the pipe or system requirements.
- Select the appropriate voltage (1x230V, 3x230V, or 3x400V) based on the electrical infrastructure.
- Consider the required flow rate and head to determine the correct model (e.g., S4 2/28 T for higher performance).
- Ensure the system fluid is clean, non-aggressive, and within 0°C to +40°C temperature range.
- Verify compatibility with stainless steel components and technopolymer impellers for long-term reliability.
Frequently asked questions
Can the pump be installed horizontally?
Yes, horizontal installation is possible but requires the addition of a cooling jacket to maintain motor performance.
What is the maximum sand content the pump can handle?
The maximum allowable sand quantity is 150 g/m³ to prevent wear on internal components.
What is the maximum suction lift for these pumps?
The maximum draft is 250 meters, depending on the model and system conditions.
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List of products
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