Powerflex Engineering Enterprises

Bhandup West, Mumbai, Maharashtra

The function of TUBE EXPANDER is to make a good mechanical seal between tube and tube sheet. Powerflex Tube Expanders do this by means of a set of rotating, parallel rolling and self feeding rollers, which cold work the tube joint metals until the tube ends fit tightly in the holes in the sheet. Powerflex Tube Expanders give smooth, accurate expansion and perfect tightening of joints with no surface ridging. The very best materials are selected and production quality is carefully checked at every step of manufacturing. The result is a product of complete dependability. Powerflex Boiler Tube Expanders are self feeding. It will expand tubes parallel in tube hole and flare projecting tube end at an angle of approx 15 degrees from centre line. These are powered or hand operated.

The function of TUBE EXPANDER is to make a good mechanical seal between tube and tube sheet. Powerflex Tube Expanders do this by means of a set of rotating, parallel rolling and self feeding rollers, which cold work the tube joint metals until the tube ends fit tightly in the holes in the sheet. Powerflex Tube Expanders give smooth, accurate expansion and perfect tightening of joints with no surface ridging. The very best materials are selected and production quality is carefully checked at every step of manufacturing. The result is a product of complete dependability.

The function of TUBE EXPANDER is to make a good mechanical seal between tube and tube sheet. Powerflex Tube Expanders do this by means of a set of rotating, parallel rolling and self feeding rollers, which cold work the tube joint metals until the tube ends fit tightly in the holes in the sheet. Powerflex Tube Expanders give smooth, accurate expansion and perfect tightening of joints with no surface ridging. The very best materials are selected and production quality is carefully checked at every step of manufacturing. The result is a product of complete dependability. Powerflex Heat Exchanger Tube Expanders are fitted with a thrust collar to eliminate frictional heat and tube end cutting. Length of expansion is adjustable. Available as short, , medium and long reach to suit thin, medium and thick tube sheets.

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 () 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.