TC Wilson

1-800-230-2636

BOILER TUBE EXPANDERS

SERIES 92 EXPANDERS

Three Roll - Self Feeding - Non-Parallel Expansion
Series 92 Expanders
Series 92 Expanders

Features
  • Three Roll
  • Self Feeding
  • Non-Parallel Expansion
  • Non-Flaring type to 5/8-Inch Tubesheet

The Series 92 self-feeding Tube Expander was designed for both boiler erection and boiler repair, either complete retubing or just touching up leaky joints. Tube expansion is recommended in the tube sheet range from 1/8-inch to 5/8-inch thick. The short mandrel is used for expanding tubes in open tube sheets as found, for example, in most HRT, Scotch Marine and Package boilers and is included with expanders offered. The header mandrel is offered for expanding through a waterleg or other obstruction which necessitates reach; order header mandrel separately.
 
Tube Assembly
with Mandrel
Part No. 		Spares Header Mandrel Specifications
OD Wall Standard Mandrel Roll Set Part No.
Inches (mm) GA (mm) Part No. Square Part No. Square Eff. Roll Length
Inches		 Range*
Inches
Inch (mm) Inch (mm) Dim. A Dim. B
1 (25.4) 10-13 (3.4-2.4) 36019 36054 1/2 (12.7) 36064 36093 1/2 (12.7) 3-5/16 .681 .937
1-1/4 (31.8) 36021 36055 36065 36094 .940 1.206
1-1/2 (38.1) 36023 36056 36066 36095 4 1.156 1.469
2 (50.8) 36027 36057 3/4 (19.1) 36067 36096 3/4 (19.1) 3-5/8 1.665 1.960
*This self-feeding expander has no collar or flare to prevent the cage from pulling into the tube. Expansion corresponds to movement of tube rolling from Dim. A to Dim. B.