ST Borehole Pumps – Wet End

Description

ST 4″ Borehole Pumps – Wet End (Does not include Motor)

INSTALLATION & USE

4″ ST Borehole Pumps

4″ ST borehole pumps are suitable for pumping clean water with a sand content of no more than 150 g/m³. 4″ ST multi-stage borehole pumps are efficient and reliable and as a result are suitable for use in domestic, civil, and industrial applications in particular for the distribution of water in combination with pressure sets, for washing plants, irrigation and pressure boosting fire sets etc.

Prices include PUMP only so you will need a motor in addition

The 4″ ST series pumps should be installed in boreholes of at least 4” (100 mm) in diameter. The pump should be lowered into the borehole, by means of the delivery pipe, to such a depth (min. 50 cm and at least one metres from the bottom) that it is completely immersed during operation when the level of water in the borehole may reduce. It is good practice to secure the pump by attaching a stainless steel cable to the anchorage points present on the delivery body.

CONSTRUCTION

Model: ST
Delivery: 1 1/4″
Delivery Body: Precision cast stainless steel AISI 304 complete with threaded delivery port in compliance with ISO 228/1
Motor Bracket: AISI 304 stainless steel
Pump Shaft: Stainless steel AISI 304
Drive Coupling: Stainless steel AISI 304 ;
Filter: Stainless steel AISI 304
Power Supply: Pump head only

PERFORMANCE RANGE

Flow rate up to  70 l/min (4.2m³/h)
Dynamic head up to 200 m

APPLICATION LIMITS

Maximum liquid temperature +35 °C
Maximum sand content 150 g/m³
100 m immersion limit
Installation:
– vertical
Starts/hour: 20 at regular intervals
Minimum flow rate for motor cooling 8 cm/s
Continuous service S1