BW Submersible Pump 4SD 2/9 - 0.37 kW, 5/4"

Product detailed description

Multistage submersible pump type 4SD 2/9 with 4" stages, 0.37 kW power output, flow rate of 1.8 m³/h (30 l/min) and voltage range of 230 V.

The pump construction includes a stainless steel casing, brass suction and discharge parts, nine floating impellers made of noryl, and it meets strict performance curve tolerances according to ISO9906.

Delivery includes a standard 20-meter suspension cable and an original 4PM rewindable oil-filled motor with an external capacitor box.

Use of the submersible pump:

• for pumping drinking and utility water from wells and tanks,
• irrigation, water supply for households and public buildings,
• for fire protection systems, pressure boosting,
• garden watering, field irrigation.

PUMP TECHNICAL PARAMETERS

• Max. temperature of pumped water - 35 °C
• Max. sand content in water - 0.25%
• Min. internal well diameter - 100 mm
• Pump length - 748 mm
• Pump diameter - 96mm
• Power output - 0.37kW
• Voltage - 230V
• Max. flow rate - 3.3 m³/h
• Optimum flow rate - 1.8 m³/h | 30l/min
• Optimum head - 51 m
• Max. head - 64 m
• Discharge thread diameter - 5/4"
• Cable length - 20m

Performance and efficiency curve of the 4SD 2/9 pump

Task and function of the pump

Pumps serve to impart kinetic energy to the liquid flowing through them; water is drawn into the tank by vacuum and forced out of it by pressure, with electrical energy commonly used to power the motor.