Structure and characteristics

Slimline submersible borehole pumps suitable for 4” or larger deep wells.

Manufactured from corrosion and abrasion resistant materials.

Close coupled to NEMA standard submersible motor.

Designed for flow rates up to 28m³/h and head up to 325 meters.

Pump structure is abrasion-resistant. Front wear plate, combined

with floating impellers, ensures optimum resistance to abrasion.

Upper and lower supports are made of precise cast stainless

steel, ensuring resistance to corrosion, durability and sturdy

coupling to the motor.

Hexagonal pump shaft guarantees an efective impeller driving.

A stainless steel one-way valve is fitted in the discharge to prevent

any back flow of water and alleviate any water hammer to the

pump, safeguarding impellers and diffusers.

4ST(M) series pumps can be coupled with 4SD(M) series motors

MOTOR

For the motor characteristics, please check the relevant motor section

Application

Groundwater supply to waterworks

Irrigation in horticulture and agriculture

Groundwater lowering

Pressure boosting

Industrial applications

Water treatment

Specification

Capacity: up to 24m³/h, at 2850 rpm, 50Hz

                up to 28m³/h, at 3450 rpm, 60Hz

Head: up to 325 meters,at 2850 rpm, 50Hz

           up to 300 meters,at 3450 rpm, 60Hz

Power: 0.37kW (1/2HP) to 7.5kW (10HP)

Power supply: single-phase 230V±10%, 50Hz. 220V±10%, 60Hz

                        three-phase 230V±10%,50Hz.220V±10%,60Hz

                        three-phase 400V±10%,50Hz.380V±10%,60Hz

Water temperature: up to 35°C

The solids in the water is less than 0.02%(heavy proportion)

Water PH:6.5-8.0

Maximum immersion depth: 150 meters