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.