Overview of Primary Product

11
Connection
VersaFlo UP, UPS
Pumped liquids
CAUTION: This pump is intended for use with water only.
Your VersaFlo UPS pump can be used to circulate
• Potable hot water
• Water for hydronic heating
• Cooling water
• In domestic hot water systems it is advisable to use
bronze pumps (VersaFlo UPS model) only for water with
a degree of hardness lower than 14 grains per gallon of
hardness. For water with a higher degree of hardness, a
direct coupled VersaFlo TP pump is recommended.
• If the pump is installed in a heating system, the water
should meet the requirements of accepted standards on
water quality in heating systems.
The pump is lubricated and cooled by the liquid being
pumped. Therefore, the pumped liquid must always be
allowed to circulate through the pump. Extended
periods without circulation will cause premature wear
to the bearings and excessive motor heat. The pumped
liquid must also meet the following requirements:
The pumping of liquids with densities or kinematic
viscosities higher than those of water will cause
• a considerable pressure drop,
• a drop in the hydraulic performance,
• a rise in the power comsumption.
In these situations contact Grundfos for assistance.
The EPDM O-rings fitted as standard are primarily suit-
able for water.
Temperature limits
Ambient air temperature, UPS : 32°F to 104°F.
Fluid temperature, UPS:
Fluid temperature, open systems: 140°F.
Fluid temperature, closed systems: 230°F.
Technical data
Relative humidity:Max. 95%.
Sound-pressure level:The sound-pressure level
of the pump is lower than
41 dB(A) (reference: 20 µPa).
Max. working pressure:145 psi.
At These Liquid Temps
UPS
Model
167°F
75°C
194°F
90°C
230°F
110°C
[psi] hf [psi] hf [psi] hf
32-40 0.7 1.6 2.2 5.1 21.0 48.5
32-80 0.7 1.6 5.1 11.8 23.9 55.2
32-160 11.6 26.8 16.0 37.0 34.1 78.8
40-40 0.7 1.6 4.4 10.2 23.2 53.6
40-80/4 0.7 1.6 1.5 3.5 18.1 41.8
40-80/2 6.5 15.0 10.9 25.2 29.0 67.0
40-160 5.1 11.8 9.4 21.7 27.6 63.8
40-240 11.6 26.8 16.0 37.0 34.1 78.8
50-40 0.7 1.6 2.9 6.6 21.8 50.4
50-80/4 0.7 1.6 4.4 10.2 23.2 53.6
50-80/2 4.4 10.2 8.7 20.1 26.8 61.9
50-160 11.6 26.8 16.0 37.0 34.1 78.8
50-240 10.2 23.6 14.5 33.5 32.6 75.1
80-40 11.6 26.8 16.0 37.0 34.1 78.8
80-80 14.5 33.5 18.9 43.7 37.0 85.5
80-160 21.8 50.4 26.1 60.3 43.5 100.5
100-40 27.6 63.8 31.9 73.7 50.0 115.5