ITT TruBlue 710, Инструкция по установке, эксплуатации и обслуживанию

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Installation
Model 710 TruBlue Installation, Operation, and Maintenance Manual 22
When Why
Periodically This follows the plant operating procedures.
Permitted indicator values for alignment checks
NOTICE:
The specified permitted reading values are valid only at operating temperature. For cold
settings, other values are permitted. The correct tolerances must be used. Failure to do so can
result in misalignment.
IMPORTANT
• For electric motors, the motor shaft initial (cold) parallel vertical alignment setting should
be 0.05 to 0.10 mm | 0.002 to 0.004 in. lower than the pump shaft.
• For other drivers such as turbines and engines, follow the driver manufacturer's
recommendations.
When dial indicators are used to check the final alignment, the pump and drive unit are
correctly aligned when these conditions are true:
• The Total Indicated Reading (T.I.R.) is at 0.05 mm | 0.002 in. or less at operating
temperature.
• The tolerance of the indicator is 0.0127 mm per mm | 0.0005 in. per in. of indicator
separation for the reverse dial indicator or laser method when the pump and driver are at
operating temperature.
Cold settings for parallel vertical alignment
Introduction
This section shows the recommended preliminary (cold) settings for electric motor-driven
pumps based on different temperatures of pumped fluid. Consult driver manufacturers for
recommended cold settings for other types of drivers such as steam turbines and engines.
NOTICE:
For electric motors, the motor shaft setting should be 0.05–0.1 mm | 0.002–0.004 in lower than
the pump shaft. For other drivers, follow the driver manufacturer's recommendations.
Recommended settings
Pumpage temperature Recommended setting
10°C | 50°F 0.05 mm | 0.002 in., low
65°C | 150°F 0.03 mm | 0.001 in., high
120°C | 250°F 0.12 mm | 0.005 in., high
175°C | 350°F 0.23 mm | 0.009 in., high
218°C | 450°F 0.33 mm | 0.013 in., high
228°C | 550°F 0.43 mm | 0.017 in., high
343°C | 650°F 0.53 mm | 0.021 in., high
371°C | 700°F 0.58 mm | 0.023 in., high
Alignment measurement guidelines
Guideline Explanation
Rotate the pump coupling half and the driver coupling half
together so that the indicator rods have contact with the same
points on the driver coupling half. This prevents incorrect measurement.
Move or shim only the driver in order to make adjustments. This prevents strain on the piping instal-
lations.
Make sure that the hold-down bolts for the driver feet are tight
when you take indicator measurements. This keeps the driver stationary since
movement causes incorrect measure-
ment.