For Tube Internal Diameter
From (36.1mm) 1.420" to (123.7) 4.870"
» Use -This is recommended to expand tubes in air heaters boilers , & refinery still tubes. Can be used to expand
thick tube sheets (Upto 8”)
» Advantages : It gives a more concentric and even expansion when expanding thin walled tubes vs conventional
3 roller tube expander and reduces tube spring back effect.