The document discusses the dimensional analysis of a pump rotor and case. Section I examines the axial dimensions and diameters of the rotor. Section II analyzes the flatness of the split-lines in the upper and lower case. Section III evaluates clearances in the virtual assembly, including axial clearances between the rotor faces and case, and labyrinth seal clearances between the diaphragm seals and rotor surfaces both transversely and vertically.

2. Section I: Rotor Analysis
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3. Rotor Axial Dimensions
Zero Reference from Suction End of Rotor to all Impeller Faces
View Reference: Side View
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Suction
End

4. Rotor Diameter Dimensions
Diameters in Relationship to themselves
View Reference: Side View
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Suction
End

5. Section II: Case Analysis
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6. Lower Case Split-Line Flatness
Flatness of Split-Line to Itself
View Reference: Top Down
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7. Upper Case Split-Line Flatness
Flatness of Split-Line to Itself
View Reference: Top Down
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8. Section III: Virtual Assembly
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9. Axial Clearances
Rotor Impeller Outer Face to Case Clearance
View Reference: Top Down
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Suction
End
Thrust
End
1A
1B
2A 3A
2B 3B
4A 5A
4B 5B
6A 7A
6B 8B7B
8A
A
Suction
Side
Thrust
Side
1 0.351 0.169
2 0.358 0.186
3 0.329 0.261
4 0.375 0.197
5 0.488 0.190
6 0.328 0.238
7 0.417 0.223
8 0.431 0.187
B
Suction
Side
Thrust
Side
1 0.349 0.175
2 0.399 0.203
3 0.352 0.246
4 0.324 0.184
5 0.501 0.190
6 0.317 0.224
7 0.413 0.228
8 0.389 0.185

10. Axial Clearances
Rotor Impeller Inner Face to Case Clearance
View Reference: Top Down
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Suction
End
Thrust
End
1A 2A 3A
4A 5A 6A 7A 8A
1B 2B 3B
4B 5B 6B 8B7B
A
1 0.183
2 0.189
3 0.187
4 0.151
5 0.152
6 0.153
7 0.153
8 0.159
B
1 0.181
2 0.191
3 0.180
4 0.155
5 0.153
6 0.155
7 0.156
8 0.154

11. Labyrinth Seal Clearances - Transverse
Diaphragm Seal Clearance to Rotor Surface
View Reference: Top Down
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Suction
End
Thrust
End
.013”
.011”
.009” .008”
.008”
.007”
.004”.015” .010”
.011”
.011”
.008”
.005”
.009” .010”
.010” .013”
.013”
.015”
.014”

12. Labyrinth Seal Clearances - Transverse
Diaphragm Seal Clearance to Rotor Surface
View Reference: Top Down
Origin Metrology Group, LLC | (888) 214 2573 | www.originmetrology.com
Suction
End
Thrust
End
.012”
.016”
.018”
.014”
.010” .012”.014”
.022”
.010” .012”
.015” .022”
.008”
.008”

13. Labyrinth Seal Clearances – Vertical
Diaphragm Seal Clearance to Rotor Surface
View Reference: Top Down
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Suction
End
Thrust
End
.019”
.004”
.016” .000”
.002”
.001”
.002”.023” .005”
.006”
.006”
.011”
.005”
.014” .012”
.007” .007”
.007”
.000”
.011”
Lower
Upper

14. Labyrinth Seal Clearances - Vertical
Diaphragm Seal Clearance to Rotor Surface
View Reference: Top Down
Origin Metrology Group, LLC | (888) 214 2573 | www.originmetrology.com
Suction
End
Thrust
End
.007”
.023
.018”
.020
.018” .004”.019”
.021”
.015” .018”
.024” .026”
.007”
.003”
Lower
Upper