ITT Goulds Pumps 3500XD, Инструкции по установке, эксплуатации и обслуживанию

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Accurate alignment of the equipment must be attained. Trouble-free operation can be accomplished
by following these procedures.
3.3.1 Alignment checks
Initial Alignment (Cold Alignment)
• Before Grouting Baseplate - To ensure alignment can be obtained.
• After Grouting Baseplate - To ensure no changes have occurred during grouting process.
• After Connecting Piping - To ensure pipe strains haven’t altered alignment. If changes have occur-
red, alter piping to remove pipe strains on pump flanges.
Final Alignment (Hot Alignment)
• After First Run - To obtain correct alignment when both pump and driver are at operating tempera-
ture. Thereafter, alignment should be checked periodically in accordance with plant operating pro-
cedures.
3.3.2 Alignment criteria
Good alignment is achieved when the dial indicator readings as specified in the alignment procedure
are .05 mm (.002 in.) Total Indicated Reading (T.I.R.) or less when the pump and driver are at operating
temperature (Final Alignment).
During the installation phase, however, it is necessary to set the parallel alignment in the vertical direc-
tion to a different criteria due to the differences in expansion rates of the pump and driver. The table be-
low shows recommended preliminary (cold) settings for electrical motor driven pumps based on different
pumpage temperatures. Driver manufacturers should be consulted for recommended cold settings for
other types of drivers (steam turbines, engines, etc.)
Table 3: Recommended preliminary cold settings for parallel vertical alignment
Pumpage Tempera-
ture Set Driver Shaft
10° C (50° F) .05 mm (.002 in.) LOW
65° C (150° F) .03 mm (.001 in.) High
120° C (250° F) .12 mm (.005 in.) High
3.4 Set up
1. Mount two dial indicators on one of the coupling halves (X) so they contact the other coupling half
(Y) (Fig. 10).
Figure 10: Dial indicator mounting
3.4 Set up
18 3500XD Installation, Operation and Maintenance Instructions