DAB S4 3/51 T 4OL – 4" submersible pump for wells and boreholes, 3.0 kW, 3 × 400 V
Code: 60190876Product detailed description
S4 3/51 T 4OL (code 60190876) is a multi-stage submersible centrifugal pump DAB with a 4" diameter, suitable for wells and bored holes with a diameter greater than 4". It is driven by a three-phase 4OL oil-filled motor, with a rated power of 3.0 kW. It is suitable for water supply and pressurization in single-family homes and larger buildings, for irrigation, washing and fire protection systems.
Performance and dimensions
- number of stages 51, rated flow 3 m³/h
- delivery head 280 m at zero flow and 112 m at 4.2 m³/h
- rated power P2 3.0 kW (4 HP), rated current 7.5 A, supply 3 × 400 V, 50 Hz
- delivery nozzle 1 1/4", maximum diameter 99 mm, pump length with motor 1964 mm
- weight of the pump with motor 28.3 kg
Materials and construction
The pump casing, shaft with coupling, suction strainer and cable cover are made of stainless steel, the suction and delivery body from precision cast AISI 304 steel. The impellers and diffusers are made of technopolymer, the stage bodies are made of AISI 304 steel and the check valve is made of AISI 304 steel with NBR sealing. The 4OL motor has bearings lubricated and cooled with food-grade liquid, a flexible stator in a casing made of AISI 304L steel and a mechanical seal of carbon/ceramic. The hydraulics achieve an efficiency index MEI ≥ 0.4.
Installation and operation
The pump is installed vertically, for horizontal installation the manufacturer recommends a cooling casing. The water must be clean and non-aggressive, with a temperature of 0 to +40 °C and a sand content of no more than 150 g/m³; submersion is possible up to 250 m and the pump may start no more than 20 times per hour. The motor can withstand operation with a frequency converter in the range of 30–50 Hz. Protection of the three-phase motor is provided by the user in the electrical installation. The electrical connection must be done by a qualified electrician.
Technical parameters
| Code | 60190876 |
| Brand | DAB |
| Type | DAB.S4 OL |
| Model | S4 3/51 T 4OL |
| Number of stages / rated flow | 51 / 3 m³/h |
| Motor | 4OL, oil-filled |
| Supply | 3 × 400 V, 50 Hz |
| Rated power P2 | 3.0 kW (4 HP) |
| Rated current | 7.5 A |
| Max. delivery head | 280 m |
| Delivery nozzle | 1 1/4" |
| Diameter / pump length | 99 mm / 1964 mm |
| Pump weight | 28.3 kg |
| Max. submersion depth | 250 m |
Frequently asked questions
Into which well can the pump S4 3/51 T 4OL fit?
It is suitable for wells and boreholes with a diameter greater than 4". The maximum diameter of the pump is 99 mm and with the 4OL motor it can be submerged to a depth of up to 250 m.
Is motor protection required for the three-phase pump?
Yes. Motor protection for the three-phase version T must be provided by the user in the electrical installation, the connection is the responsibility of the electrician.
What kind of water can the pump handle?
Clean, non-viscous and non-aggressive water without abrasive substances with a temperature from 0 to +40 °C. The sand content can be no more than 150 g/m³.
Can the pump be mounted horizontally?
It is installed vertically by default. Horizontal installation is possible, in that case the manufacturer recommends using a cooling casing.
Additional parameters
| Category: | DAB.S4 OL - submersible 4" pumps with oil-filled motor |
|---|---|
| Warranty: | 2 years |
| Weight: | 28.3 kg |
| Availability: | In stock or at supplier |
| Code: | 60190876 |
| Brand: | DAB |
| Type: | DAB.S4 OL |
| Model: | S4 3/51 T 4OL |
| Number of stages / nominal flow: | 51 / 3 m³/h |
| Motor: | 4OL, oil-filled |
| Power supply: | 3 × 400 V, 50 Hz |
| Rated power P2: | 3.0 kW (4 HP) |
| Rated current: | 7.5 A |
| Max. head: | 280 m |
| Discharge outlet: | 1 1/4" |
| Pump diameter / length: | 99 mm / 1964 mm |
| Pump weight: | 28.3 kg |
| Max. immersion depth: | 250 m |
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