Product Manual

SP introduction
SQ, SQE, CU 331, and SP
12
59
A wide pump range
Grundfos offers energy-efficient SP submersible
pumps with a performance range of up to 1,400 gpm
and 2,100 ft of head.
The pump range consists of many pump sizes, and
each pump size is available with an optional number of
stages to match any duty point.
High pump efficiency
Often pump efficiency is given less consideration than
the price of a pump; however, owners who choose
efficiency will find substantial savings in energy costs
over time. See fig. 51 for an illustration of SP
efficiencies in relation to flow.
Example
For example, a pump and motor with a 10 % higher
efficiency than a cheaper, less efficient pump, can
save its owner more than $80,000.00 over 10 years*.
* If producing 880 gpm at 325 ft of head for 10 years @ 13.8 cents
per kWh. U.S. kWh costs range from 6 cents to more than 20
cents, depending on region.
Fig. 51 SP pump/motor efficiencies in relation to flow
Pump design
Grundfos SP submersible pumps feature components
that contribute to the superior performance and
durability of the range.
Lower installation costs
Stainless steel means low weight for ease in the
handling of pumps, resulting in lower equipment costs
and reduced installation and service time.
Bearings with sand channels
All bearings are water-lubricated and have a squared
shape enabling sand particles, if any, to leave the
pump together with the pumped liquid.
Fig. 52 Bearing
Inlet strainer
The inlet strainer prevents particles over a certain size
from entering the pump.
Fig. 53 Fig. Inlet strainer
TM05 0057 3215
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