Hyflux Water and Wastewater Desalination - GineersNow Engineering Water Technology Trends with Hyflux - GineersNow | Page 17

KSB Launches New 4-inch
Submersible Borehole Pumps Made of
Stainless Steel
In early April 2017 the Frankenthal-based KSB
Aktiengesellschaft launched a new type series of
submersible borehole pumps. The UPAchrom 100
series is designed for water supply and irrigation
applications as well for use in small systems for
drawdown of groundwater levels. It covers discharge
heads of up to 550 metres and flow rates of up to
21,500 litres per hour.
The efficiencies of the hydraulic systems satisfy
the demanding requirements of the applicable ErP
regulations; all MEI values are above 0.40. Certified
for drinking water to French (ACS) and US (NSF)
standards, the pump can safely be used for drinking
water applications.
All pump components are made of stainless steel.
The pump sets are of a very robust design and
capable of handling water with a solids content of 50
grammes per cubic metre. An integrated, hydraulically
optimised check valve prevents the discharge line
from emptying when the pump set is stopped. This
reduces any damage that could be caused by reverse
rotation of the pump.
The pumps are driven by water-filled canned motors
with a rating of up to 7.5 kW or by rewindable
submersible motors with ratings of up to 18.5 kW
for very high heads. All pump sets are completely
maintenance-free with self-adjusting thrust bearings
and pressure balancing diaphragms. Generously
dimensioned intermediate bearings at each pump
stage prevent potential shaft misalignment. Their
special design provides optimum lubrication of the
bearing faces and the option of installing the pump at
an angle or in a horizontal position.
Photo: The new UPAchrom 100 submersible borehole pump series
(KSB Aktiengesellschaft, Frankenthal, Germany)
Its simple configuration using the proven metal strap
design makes the pump set very service-friendly.
Dismantling is quick and easy. Thanks to the fine-
tuned range of motor sizes, the user can choose
the optimum drive rating to match any application.
Couplings and drive flanges have mating dimensions
to NEMA Standards.
Water Leaders • May 2017
15