Xylem e-XC, Instruction Manual

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Hub Size
Parallel Offset Angular Offset
in. (mm) in. (mm)
1060T 0.008 (0.20) 0.005 (0.13)
1070T 0.008 (0.20) 0.005 (0.13)
1080T 0.008 (0.20) 0.006 (0.15)
1090T 0.008 (0.20) 0.007 (0.18)
1100T 0.010 (0.25) 0.008 (0.20)
1110T 0.010 (0.25) 0.009 (0.23)
1120T 0.011 (0.28) 0.010 (0.25)
1130T 0.011 (0.28) 0.012 (0.30)
1140T 0.011 (0.28) 0.013 (0.33)
4.3.5 Final alignment
You cannot perform the final alignment until you initially operate the pump long enough
to reach operating temperature. When the pump reaches the normal operating
temperature, then secure the pump and re-check the alignment. Make sure that you
compensate for temperature accordingly.
NOTICE:
Elastomeric couplings are specifically designed to accommodate angular shaft
misalignment, as well as parallel offset of the pump and motor shafts. However, the
amount of the offset and/or misalignment depends on the style of the applied flexible
coupling. If you do not correct this coupling misalignment, there is a significant impact on
the overall life of the mechanical seals and the bearings of the pump.
4.4 Piping checklists
4.4.1 General piping checklist
CAUTION:
Never draw piping into place by using force at the flanged connections of the pump. This
can impose dangerous strains on the unit and cause misalignment between the pump
and driver. Pipe strain adversely affects the operation of the pump, which results in
physical injury and damage to the equipment.
Piping guidelines
Guidelines for piping are given in the Hydraulic Institute Standards available from the
Hydraulic Institute at 9 Sylvan Way, Parsippany, NJ 07054-3802. You must review this
document before you install the pump.
Figure 9: Forces and moments for horizontally split case pumps
4 Installation
26 e-XC INSTRUCTION MANUAL