Download Grundfos VersaFlo UPS Circulator Pump

Grundfos VersaFlo UPS
Wet Rotor, In-Line, Single Stage
Circulator Pump
and Motor Specification
Pump:
The pump shall be a maintenance-free, in-line, single stage, wet rotor type with the motor mounted directly
to the pump volute. The pump models shall be furnished as shown on the plans and installed in accordance
with manufacturer's recommendations. The pump shall be capable of delivering __________ gallons per
minute (__________ cubic meters per hour) when operating at a total developed head of __________ feet
(__________ meters) of water column. The pump shall be capable of operating continuously at temperatures
from 14°F to 230°F (-10°C to 110°C) for closed systems and 32°F to 140°F (0°C to 60°C) for open systems.
Maximum working pressure shall be 145 psi (10 bars).
The pump volute shall be constructed of close-grained cast iron (closed systems) or bronze (open
systems).
The impeller, impeller seal ring, rotor can, bearing plate, motor shaft, and rotor cladding shall be constructed
of stainless steel. The impeller shall be secured directly to the motor shaft by means of a stainless steel
tapered split cone and locking nut. The motor shaft shall have tungsten carbide bearing journals and shall
be supported by two aluminum oxide ceramic radial bearings. The motor shaft shall have a stainless steel
mounted carbon thrust bearing. The pump shall not have a coupling or mechanical seal.
Motor:
The integral motor shall be of the horsepower, voltage, phase, and frequency as shown on the drawings.
For 115, 208, and 230 volt models, the pump shall operate on each of three speeds selected using a builtin, three-speed switch (460 & 575* volt models are two speed only). The motor shall be cooled and lubricated
by the pumped fluid and shall require no scheduled maintenance.
Furnish GRUNDFOS VersaFlo UPS circulators or approved equal.
*575 available only in Canada.
L-UPS-TL-002 Rev. 8/97
PRINTED IN USA