Hale products inc, Impeller maintenance recommended clearances – Hale PSD User Manual
Page 20
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Hale Products Inc.
Impeller Maintenance Recommended Clearances
This table lists recommended clearances for I.R.P.S. fire pumps (750 gpm to 1500 gpm). Be
sure to check your impeller for damage before proceeding to undersize wear rings. When
turning impellers to fit undersize rings, caution must be exercised that the seal ring surface
runs true with the bore within .002.
1/32
1/16
Standard
Undersize
Undersize
750/1250 gpm
A
6.067
6.036
6.005
6.069
6.037
6.006
B
6.051
6.020
5.989
6.050
6.019
5.988
C
6.051
6.020
5.989
6.050
6.019
5.988
D
6.067
6.036
6.005
6.069
6.037
6.006
1500 gpm
A
6.517
6.486
6.455
6.519
6.488
6.457
B
6.501
6.470
6.439
6.500
6.469
6.438
C
6.501
6.470
6.439
6.500
6.469
6.438
D
6.517
6.486
6.455
6.519
6.488
6.457
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