Tube Expanders

These 'tp' & 'tf' series tube expanders are widely used for smooth and accurate expansion of tubes in boilers, economisers, super heaters, juice heaters, evaporators etc.
the there roller 'tp' series tube expander is a fixed roller length, parallel rolling tool.
the 'tf' series tube expander is provided with one additional belling roller to flare tube projection. The chart provided below is for quick easy selection of the correct tube expander. The last digit of tool number denotes plate/drum thickness. The standard tube plate thicknesses are 30 mm(3), 40 mm(4), 55 mm(5), 65 mm (6).

• tube o.d.× tube wall thickness (t), and wall thickness tolerance.

• tube sheet thickness (t), and effective expansion length required.

• when requiring flare expansion, flare angle (α) and tube projection (p).

• hand hole diameter of header.

• length of straight tube part (s).

• curve radius of bent tube part (r).

• type of expander (tp, tf etc.)

• type of mandrel required.