Thomas C. Wilson Tube Tools
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BOILER TUBE EXPANDERS

SERIES 22 EXPANDERS

Three Roll - Self Feeding - Non-Parallel Expansion

Series 65 Expander
Series 22 Expander

Features
  • Three Roll
  • Self Feeding
  • Non-Parallel Expansion
  • Revolving Collar Type
  • Non-Flaring

The Series 22 self-feeding Tube Expander is especially designed for use in boiler rooms, boiler repair shops, railroads, Scotch marine boilers and for all general rolling in fire tube boilers where flaring is not required.

The revolving thrust collar, of hardened steel, bears against the tube seat and provides non-jamming operation with maximum resistance to abrasive action. Compact design permits working close to wall or adjacent tubes.

For sizes 2-Inch and up, the rolls are self-retained and the expanders are suitable for far end rolling with Reverse Taper Mandrel and extension drive.

 
Tube Assembly
with Mandrel
Part No.
Spares Reverse Taper Mandrel Expansion
Range*
Inches
OD Wall Standard Mandrel Roll Set Part No. Part No. Square
Inch (mm)
Inches (mm) GA (mm) Part No. Square
Inch (mm)
1-1/2 (38.1) 13-18 (2.4-1.2) 30008 30564 3/4 (19.1) 30040 1.281-1.480
2 (50.8) 12-18 (2.8-1.2) 30012 30565 30044 20766 1/2 (12.7) 1.718-1.973
2-1/4 (57.2) 11-18 (3.0-1.2) 30014 30566 30045 20767 1.973-2.229
2-1/2 (63.5) 10-18 (3.4-1.2) 30016 30047 20768 3/4 (19.1) 2.156-2.478
2-3/4 (69.9) 30018 30567 30048 20769 2.406-2.727
3 (76.2) 9-18 (3.8-1.2) 30020 30568 1 (25.4) 30049 21692 1 (25.4) 2.625-2.986
3-1/4 (82.6) 9-18 (3.8-1.2) 30021 30050 2.875-3.237
* Expander range is taken at front of thrust collar.