Structure and characteristics

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

Manufactured from corrosion & abrasion resistant materials.

Close coupled to NEMA standard submersible motor.

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

Abrasion-resistant construction. The front wear plate, combined with the floating impellers, ensures optimum resistance to abrasion.

The upper and lower supports are made of precision-cast stainless steel, ensuring resistance to corrosion, durability and a sturdy coupling to the motor.

The hexagonal pump shaft guarantees an effective impeller driving.

A stainless steel non-return valve is fitted in the discharge to prevent any back flow of water and alleviate any watwer hammer to the pump, thus safeguarding impellers and diffusers.

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

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 14.4m³/h, at 2850 rpm, 50Hz

Head: up to 189meters, at 2850rpm, 50Hz

Power: 1.1kW(1.5HP) to 5.5kW( 7.5HP)
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℃

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

Water PH:6.5-8.0

Maximum immersion depth: 150 meters