The 114 series tube expander is one of the most common boiler expanders. Used for flaring tubes with a 40-degree flare in a compact design. Self-retaining rollers held in place using an inner sleeve. This allows the cage and rollers in the tube before inserting the mandrel. Thus allowing easier insertion when limited access is available. Some manufacturers and service companies use a flaring expander before manual beading.
The general design of this expander incorporates overlapping rolls, which eliminates ridging. Consisting of four straight rollers. This makes the gas-tight seal and an additional two rollers for flaring. And the 114 series tube expander is convertible to a straight rolling configuration.
The general design of this expander incorporates overlapping rolls, which eliminates ridging. And the 114 series tube expander is convertible to a straight rolling configuration.
Uses of the 114 Series Tube Expander
Uses, listed as a general-purpose boiler tube expander for expanding and flaring tubes. These would be fire tube boilers, water wall, downcomers, economizers and air heaters.
- Tube OD 2.0″ to 4.1/2″
- BWG 2 to 15.
- Tube Sheet Thickness Range from 1/2″ to 2.5/8″.
- Drum Mandrels are Available.
- Header type Mandrels.
- Short Series Mandrels 5.1/8″
- Short Series Mandrels 7.1/8″
114 Series Tube Expanders for Flaring Boiler Tubes
Read the two tables horizontally together which will then give you all details required.
- Find the Tube OD and match it with the tube wall thickness.
- Check the minimum tube ID the tool will enter. (Tube OD – (2 x wall thickness)).
- Find the correct tube sheet thickness range.
- Then below the tube sheet thickness range is the required part number.
- Moving to the second panel gives you the Roll set part and part numbers for different mandrels.
- We suggest downloading these part number pages from the link below;
Read our page Rolling Boiler Tubes. This link, Rolling Boiler Tubes, describes how to work out the finished ID of the tube. Also, we cover reasons why boiler tube joints fail.