Product Overview

Grundfos VersaFlo
®
UPS pumps are a whole new generation
in pumps.
The new VersaFlo
®
UPS pumps offer:
New Terminal Box
• Three-speed control.
• Fiber optic operation display.
• Pump speed selection displayed through an indicator window.
New Convergent Vane Impeller
• The revolutionary and newly designed Grundfos convergent
vane impeller provides optimum efficiency and lower
operating cost.
• Performance and efficiency in flow rates up to 270 gpm.
• Stainless steel construction for long-life and maintenance-
free operation.
New Design
• The VersaFlo
®
UPS was designed with industry standard
flange-to-flange dimensions to ensure trouble-free
retrofitting to other competitive models.
• The wet rotor design provides whisper-quiet operation. The
VersaFlo
®
UPS is the only wet rotor pump of its size in the
industry.
the VersaFlo
®
UPS
• Improved air venting.
• Expanded fluid temperature
ranges from 14°F to 230°F.
• Available in cast iron and
bronze models.
• Designed to be maintenance-
free (no external bearing
lubrication required).
• Incorporates thermal
protection.
Common Applications: Commercial Boiler/Hydronic Heating • Chilled Water
• Cooling Towers • Geothermal Systems • Water Circulation • Heat Exchangers •
HVAC • Heat Pumps • Glycol Solutions • Radiant Floor Heating • Solar
• Snow Melting • Greenhouse/Nurseries • Fountains • Domestic Hot Water
CIRCULATING PUMPS FOR INDOOR HEATING AND
WATER CIRCULATING SYSTEMS
• Industry standard flange-to-flange dimensions
• Built-in motor protection for long life
• Quiet, maintenance free performance
• UL/CSA listed
Model Range Suction and
Models HP Range Discharge Size
UPS 32
1
/3,
1
/2,
3
/4 1
1
/4", 1
1
/2"
UPS 40
1
/3,
1
/2,
3
/4, 1
1
/2 1
1
/2"
UPS 50
1
/3,
3
/4, 1
1
/2, 2 2"
UPS 80
1
/2, 1
1
/2, 3 3"
UPS 100 1 4"
New Protection Module
allows pump to be
connected directly to a
starter switch as it will be
protected by the built-in
overload protection at all
three speeds.
Materials of Construction
Description Material
Impeller, Bearing Plate, Rotor Cladding AISI 304 SS
Bearing Retainers, Rotor Impeller, Rotor Can
Impeller Seal Ring AISI 304 SS/Teflon®
Inspection/Vent Screw, Shaft (cast iron pumps) AISI 303 SS
Split Cone, Split Cone Nut
Shaft (bronze pumps) AISI 316 SS
Shaft Bearing Journals Tungsten Carbide
Pump Housing* Cast Iron ASTM GG25
*Bronze - Optional 35B-40B
Stator Housing Aluminum AISI 10Cu2
Rotor End Caps Copper or Brass
Upper and Lower Radial Bearings Ceramic AI2O3
Thrust Bearing Carbon MY106
O-Rings EPDM
Terminal Box, Nameplate Composite PA66
Plug for Sensor Composite PPS, GF40
Teflon
®
is a registered trademark of Dupont.
Fiber optic operation
display and speed
indicator window
with control box.
Spring clamp
connectors for easy
wire installation.
New heavy duty
three-speed plug
design and increased
terminal box size for
easy access.
VERSAFLO
®
UPS
Other Features of