Teco Tube Expanders Company

SPECIAL MODELS OF TUBE EXPANDERS STEP EXPANDER Model: SL (patented) Designed to avoid destructive axial stress in welded joints. Among the many applications is expanding U-tubes in welded joints on thick tube plates, whereby the tubes are expanded after welding. Automatic axial movement of the expander housing during expansion, ensures that tube elongation developed during this operation, is on the rear side of the tube plate. The TECO SL Step Expander automatically smooths out the overlapping during expanding. The range covered is for tubes from 3/8” to 1 11/32” (9 to 34 mm) I.D. and tube sheets thickness 2 9/16” to 27 1/2” (65 to 698.5 mm). On request the expander can be supplied with Teflon bushings to prevent tube damage. STEP BY STEP TUBE EXPANDER This model expander is specially designed for thick tube sheets. Automatic overlapping of the rolling in stages. For tubes 3/8” to 1 3/8” (9.5 mm to 34.9 mm) I.D. and tube sheet thickness 2 1/2” to 27 1/2” (63.5 mm to 698.5 mm). FIVE ROLL EXPANDER Model: CH 800 AND CH 1200 A special line of expanders to expand thin wall tubes, titanium, stainless steel and other high quality metals. Available with special thrust collars, to eliminate the possibility of the tube being drawn up inside the thrust collar. Reference pages 10-11 & 14-15. TUBE EXPANDER Model: CC Ideal for expanding tubes in thin tube sheets. For tubes from 1/2” to 4 1/2” (12.7 mm to 114.3 mm) O.D.. Available with adjustable collar. tube expanders company 20