DAB S4 16/12 T 4OL – 4" submersible pump for wells and boreholes, 2.2 kW, 3 × 400 V

Product detailed description

S4 16/12 T 4OL (code 60190919) is a multi-stage submersible centrifugal pump DAB with a 4" diameter, suitable for wells and bored wells with a diameter greater than 4". It is driven by a three-phase 4OL motor with oil filling, the nominal power is 2.2 kW. It is suitable for water supply and pressurization in family houses and larger buildings, for irrigation, washing and fire protection systems.

Performance and dimensions

• number of stages 12, nominal flow 16 m³/h
• delivery head 55 m at zero flow and 10 m at 21.6 m³/h
• nominal power P2 2.2 kW (3 HP), nominal current 6 A, power supply 3 × 400 V, 50 Hz
• discharge nozzle 2", maximum diameter 99 mm, pump length with motor 1497 mm
• weight of the pump with motor 21.9 kg

Materials and construction

The pump casing, shaft with coupling, suction strainer and cable cover are made of stainless steel, the suction and discharge body from precisely 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 technopolymer. The 4OL motor has bearings lubricated and cooled by food-grade liquid, a flexible stator in a housing 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 jacket. 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 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

Frequently asked questions

Into which well does the pump S4 16/12 T 4OL fit?
It is suitable for wells and bores 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 wiring is the responsibility of the electrician.

What kind of water can the pump pump?
Clean, non-viscous and non-aggressive water without abrasive substances with a temperature from 0 to +40 °C. The sand content may be no more than 150 g/m³.

Can the pump be mounted horizontally?
It is installed vertically by default. Horizontal installation is possible, the manufacturer then recommends using a cooling jacket.