Xylem P81630E Series VSC and VSCS Base Mounted Centrifugal Pumps - Manual (Page 2)

DESCRIPTION
The VSC and VSCS Series centrifugal pumps are frame mounted
pumps which feature – high efficiency, rugged construction,
compact design, foot mounted volute, center drop out coupler,
and regreasable bearings. These features along with the verti-
cally split case make installation, operation, and service easy to
perform.
PUMP APPLICATION
The standard VSC and VSCS Series centrifugal pump’s bronze
fitted construction make it ideal for service with the following
liquids: unheated domestic and fresh water, boiler feed water,
condensate, hydronic cooling or heating, pressure boosting,
general pumping and benign liquids.
For other applications contact your local B&G Representative.
OPERATIONAL LIMITS
Unless special provisions have been made for your pump by
Bell & Gossett, the operational limits for VSC/VSCS Series
Pumps are as follows:
Maximum Working Pressure
Listed on pump nameplate.
SEAL OPERATING LIMITS
Standard Seals
BUNA-PH Limitations 7-9; Temperature Range -40 to +225°F
EPT-PH Limitations 7-11; Temperature Range -40 to +250°F
For use on closed or open systems which are relatively free of
dirt and/or other abrasive particles.
Flushed Single Seals
PH Limitations 7-9; Temperature Range 0 to +250°F†
Note: On closed or open low pressure systems which may
contain a high concentration of abrasives an external flush is
required.
Flushed Double Seals
PH Limitations 7-9; Temperature Range 0 to +250°F
Note: On closed or open low pressure systems which may
contain a high concentration of abrasives an external flush is
required.
Packing
PH Limitations 7-9; Temperature Range 0 to +200°F
Note: On open or closed systems which require a large
amount of makeup water, as well as systems which are sub-
jected to widely varying chemical conditions and solids buildup.
† For operating temperatures above 250°F a cooled flush is required
and is recommended for temperatures above 225°F for optimum seal
life. On closed systems cooling is accomplished by inserting a small
heat exchanger in the flush line to cool the seal flushing fluid.
Flush-line Filters and Sediment Separators are available on special
request.
2
SAFETY
INSTRUCTION
This safety alert symbol will be used in this manual and on the
pump safety Instruction decal to draw attention to safety related
instructions. When used, the safety alert symbol means
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
FAILURE TO FOLLOW THE INSTRUCTIONS MAY RESULT IN
A SAFETY HAZARD.
Your VSC/VSCS Series Pump should have the following safety
instruction decals located approximately as shown. If the
decals are missing or illegible contact your local B&G repre-
sentative for a replacement.
WARNING
ROTATING COMPONENTS
DISCONNECT AND LOCK OUT
POWER BEFORE SERVICING.
DO NOT OPERATE WITHOUT
ALL GUARDS IN PLACE.
CONSULT INSTALLATION
AND SERVICE INSTRUCTION
SHEET BEFORE OPERATING
OR SERVICING.
FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY
OR DEATH.
P70642
WARNING
EYEBOLTS OR LIFTING
LUGS IF PROVIDED ARE
FOR LIFTING ONLY THE
COMPONENTS TO WHICH
THEY ARE ATTACHED.
FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY
OR DEATH.
P70643
CAUTION
DO NOT RUN PUMP DRY,
SEAL DAMAGE MAY OCCUR.
INSPECT PUMP SEAL
REGULARLY FOR LEAKS,
REPLACE AS REQUIRED.
FOR LUBRICATION
REQUIREMENTS, CONSULT
SERVICE INSTRUCTIONS.
FAILURE TO FOLLOW
INSTRUCTIONS COULD
RESULT IN INJURY OR
PROPERTY DAMAGE.
P70644
CAUTION
COUPLER ALIGNMENT IS
REQUIRED! LEVEL AND GROUT
PUMP BEFORE USE!
CHECK ALIGNMENT BEFORE
GROUTING, AFTER SYSTEM IS
FILLED, AFTER SERVICING
PUMP, AND AS REQUIRED.
CONSULT THE SERVICE
INSTRUCTIONS FOR DETAILS.
FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD
RESULT IN INJURY OR
PROPERTY DAMAGE.
P70820
ALTERNATE
LOCATION
(2) REQUIRED
(1 EACH SIDE)