Goulds-pumps IC - IOM User Manual download pdf (Page 65)

Casing areas to inspect

The arrows point to the areas to inspect for wear on the casing:

Figure 9: Areas to inspect on the casing

Impeller replacement

This table shows the criteria for replacing the impeller:

Impeller parts When to replace

Impeller vanes

• When grooved deeper than 1/16 in. (1.6 mm),

• When worn evenly more than 1/32 in. (0.8 mm)

Vane edges When you see cracks, pitting, or corrosion damage

Impeller clearances and reconditioning

When you recondition the impeller, consider this information:

• For pumps installed in potentially explosive atmospheres, you must replace worn parts when the wear

limits have been reached.

• For volute casings (102V) with a wear ring (502.11) and casing covers (161) with a wear ring (502.31),

you can restore the correct clearance in one of two ways:

• Replace the impeller and the wear ring.

• Contact your ITT representative in order to acquire a customized wear ring (bored to fit) in order

to avoid replacement of the impeller.

• When the volute casing (102V) or casing cover (161) without a wear ring must be repaired, you can

install a wear ring in order to renew pump performance. The volute casing and/or the casing cover

must be re-machined. Contact your ITT representative for assistance.

Maintenance

Model IC, ICI, ICH, ICIH Installation, Operation, and Maintenance Manual 63

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Goulds-pumps IC - IOM User Manual Page 65