Xylem 2000 Series Frame Mounted Pumps AC8652 REV.C - Manual (Page 12)

Fin
the
suf
tem
tem
pu
for
Section.
WARNING: Rotating Components
Hazard
Do not operate pump without all guards in place.
Failure to follow these instructions could result in
serious personal injury or death and property
damage.
Final Alignment
al alignment cannot be accomplished until
pump has been operated initially for a
ficient length of time to attain operating
perature. When normal operating
perature has been attained, secure the
mp to re-check alignment and compensate
temperature accordingly. See Alignment
WARNING: Coupling Failure
t t of
uctions. Coupling,
serious personal injury or death and property
dam
operate pump with coupling ou Do no
alignment. Ensure final coupling alignment is
within the values stated above or according to the
oupling manufacturer’s instr c
pump, or driver failure may occur.
Failure to follow these instructions could result in
age.
Due to the different types of couplers
available for your Series 2000 pump, refer to
coupler manufacturer's instructions for
alignment values and additional instructions.
ROTATION
Pump rotation is clockwise when viewed from
back of the motor. An arrow is also located on
the pump to show the direction of rotation.
PIPING
Always install a section of straight pipe
between the suction side of the pump and
first elbo
iquid
efore it enters the pump. The length should
be equal to ten times the diameter of the
pipe.
Be sure to eliminate any pipe-strain on the
pump. Support the suction and discharge
pipes independently by use of pipe hangers
near the pump. Line up the vertical and
horizontal piping so that the bolt-holes in the
pump flanges match the bolt-holes in the pipe
flanges. DO NOT ATTEMPT TO SPRING
THE SUCTION OR DISCHARGE LINES
INTO POSITION. Coupling and bearing wear
will result if suction or discharge lines are
forced into position. The code for Pressure
Piping (A.S.A.B. 31.1) lists many types of
supports available for various applications.
As a rule, ordinary wire or band hangers are
not adequate to maintain alignment. It is very
important to provide a strong, rigid support for
the suction and discharge lines.
Where considerable temperature changes
are anticipated, fittings for absorbing
expansion should be installed in the system
in such a way as to avoid strain on the pump.
On an open-system with a suction-lift, use a
foot-valve of equal or greater area than the
pump suction piping. Prevent clogging by
using a strainer at the suction inlet next to the
foot-valve. The strainer should have an area
three times that of the suction pipe with a
mesh hole diameter of no less than 1/4".
When using an isolation base, flexible piping
should be used on both the suction and
discharge sides of the pump.
A check valve installed in the discharge line
will serve to protect the pump from water
hammer. Also install an isolation valve for
servicing and for throttling.
NOTES:
1. The pipeline should have isolation valves
around the pump and have a drain valve
in the suction pipe.
2. When installing connections to a threaded
pump housing the use of PTFE tape
sealer or a high quality thread sealant is
recommended.
w. This reduces turbulence of the
ction by straightening out the flow of l su
b
12