tube expanders for boilers and boiler  accessories

AF3 series - boiler tube expanders

Configuration:  three Parallel rollers with three flaring rollers

Tube sizes covered: 7/8"OD up to 4.1/2"OD

The AF3 series covers tube sheets from 1/2" up to 2.5/8" and different mandrels are available including Short series, Drum and Header.

Tube Expanders AF3 Series for Boilers

features:

Overlapping rolls prevent ridging of the tube.

Self retained rolls in the cage.

Compact design for use through small hand holes, headers etc.

Use:

General purpose designed boiler tube expander for flaring and expanding tubes in fire tube boilers, water walls, down comers, economizers and air heater tubes. This is an ideal expander if you intend to either tighten some tubes up or have a small amount of tubes to roll. If you need to manually bead the tubes back to the tube sheet as this expander will give the tube a 30 degree bevel.

the picture below shows the short series mandrel option

Short Series Tube Expanders AF3 Series for Boilers

Consult the PDF Specifications below to cross refer all data to the tube OD, wall thickness and tube sheet thickness. Also, part numbers for spare mandrels and rollers can be found here. If the PDF is two pages then the data has to be read across the two pages.


 

boiler tube expansion accessories

tools used in the rolling of boiler tubes

Vacuum Tube Leak Detector Kit Please consult the pdf below for all the Boiler Expansion Accessories available

Consult the PDF Specifications below to cross refer all data to the tube OD, wall thickness and tube sheet thickness. Also, part numbers for spare mandrels and rollers can be found here. If the PDF is two pages then the data has to be read across the two pages.