Thomas C. Wilson Tube Tools
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Condenser Tube Expanders

SERIES 72-D, 73-D

4 and 5 Roll Condenser Expanders —
1/2 to 1 1/2-Inch Outer Diameter — (2 1/4-Inch (57.2mm) Roll Length D)

These expanders are used on light Gauge tubes of stainless steel, titanium, and materials of similar hardness.

5-Rolls with light wall tubes can prevent triangulation of the tube to the tube hole. Wilson Thin Gauge collars also offer a large advantage for projection of tube.

All assemblies come complete with mandrels, rolls, cage, and collars with a 1/16-inch standard recess.

A = 1/2 (12.7mm) to 1 1/2-Inch (38.1mm) Tube Outer Diameter

B = 13 (2.4mm) to 25 (.5mm) Gauge

C = 72-D - 1/2 (12.7mm) to 2 1/4-Inch (57.2mm) Tubesheet
       73-D - 1 1/2 (38.1mm) to 6 1/4-Inch (158.8mm) Tubesheet

   
Tube Range 72-D Expander 1/2 - 2 1/4-Inch Reach 73-D Expander 1 1/2 - 6 1/4-Inch Reach 2 1/4-Inch (57.2) Roll Length Roll Set
OD Wall Assembly Mandrel  Cage Assembly Mandrel  Cage
Inches (mm) GA Inches (mm) Part No. Part No. Part No. Part No. Part No. Part No.
1/2 (12.7) 18-19 .387-.449 (9.8-11.4) 42248 42286 42267 - - - 33380-4
20-25 .425-.480 (10.5-12.2) 42249 42287 42268 - - -
5/8 (15.9) 18-19 .515-.570 (13.1-14.5) 42250 42288 42269 41952 42064 42016 33382-4
20-25 .537-.596 (13.6-15.1) 42251 42270 41953 42017 33377-4
3/4 (19.1) 13-14 .537-.596 (13.6-15.1) 42329 42333
16-17 .605-.676 (15.2-17.2) 42252 42289 42271 41954 42066 42018 33383-5
18-19 .635-.715 (16.1-18.2) 42253 42290 42272 41955 42067 42019
20-25 .665-.750 (16.9-19.1) 42254 42273 41956 42020 33384-5
7/8 (22.2) 16-17 .717-.795 (18.2-20.2) 42255 42274 41957 42021 33385-5
18-19 .758-.859 (19.3-21.9) 42256 42291 42275 41958 42069 42022
20-25 .790-.885 (20.1-22.5) 42257 42276 41959 42023 33386-5
1 (25.4) 13-15 .790-.885 (20.1-22.5) 42330 42334
16-17 .850-.922 (21.6-23.4) 42258 42292 42277 41960 42070 42024
18-19 .885-.950 (22.5-24.1) 42259 42293 42278 41961 42071 42025
20-25 .915-1.015 (23.2-25.8) 42260 42279 42304 42308 33387-5
1 1/8 (28.6) 18-19 1.010-1.075 (25.7-27.3) 42261 42280 41962 42026 33389-5
20-25 1.040-1.125 (26.4-28.6) 42262 42294 42281 41963 42072 42027
1 1/4 (31.8) 18-19 1.135-1.200 (28.8-30.5) 42263 42282 41964 42028 33390-5
20-25 1.165-1.250 (29.6-31.8) 42264 42295 42283 41965 42073 42029
1 1/2 (38.1) 18-19 1.385-1.450 (35.2-36.8) 42265 42296 42284 41966 42074 42030 33392-5
20-25 1.415-1.500 (35.9-38.1) 42266 42297 42285 41967 42075 42031



Thin Gauge collar

Thin Gauge collar assembly is supplied on all 5-Roll, Series 72 and 73, 20-23 Gauge Expanders. Recess adjustable by use of space washers. Unique design maintains tube end contact throughout expansion.