INTRODUCTION
Thank you for purchasing this Elliott product. The design and manufacture of this
machine, represents the highest standard of quality, value and durability. Elliott tools
have proven themselves in thousands of hours of trouble free field operation.
If this is your first Elliott purchase, welcome to our company; our products are our
ambassadors. If this is a repeat purchase, you can rest assured that the same value you
have received in the past will continue with all of your purchases, now and in the future.
The Elliott Baffle Expander is a lightweight, portable tube expansion system designed to
expand tubes at the support plates or baffles in heat exchangers, chillers, and
condensers. The adjustable hydraulic pressure allows for consistent expansion,
eliminating the risk of over expansion that can lead to tube failure. This tool is not
designed for heavy expansion at the primary tube sheets.
We at Elliott would like you to be completely satisfied with this machine and therefore
recommend that this instruction manual be thoroughly read prior to use.
This machine has been designed and manufactured to the highest standards, using the
latest in materials and technology. If the guidelines and maintenance schedules in this
manual are followed, the Elliott Baffle Expander will provide many years of trouble free
operation.
Elliott Tool Technologies Ltd shall not be liable for errors contained herein or for incidental or consequential damage in connection
with the furnishing, performance, or use of this material.
Figure A
OPERATION
1. Measure the distance from the face of the tube sheet to the center of the baffle
support plate being expanded.
2. Assemble the collet extensions (7) and draw bar extensions (5) as required to reach
the needed length.
3. Position the location collar (6) so that the collet (3) will be properly positioned under
the support plate. See diagram above.
4. The pump pressure controls the amount of tube expansion achieved. To set this
pressure properly, a sample piece of tube (similar to the tube in the heat transfer
vessel) will be required. Set the hydraulic pump to 400 PSI. Depress the pendant
switch to the on position for 2 to 3 seconds. This will retract the draw bar (4) and
expand the collet (3) and the tube sample. When the pendant switch is released, the
collet expander will be returned to its minimum diameter.
5. To adjust the minimum and maximum expansion of this tool loosen the split collar (8)
set screw and adjust the threaded adapter (5) either inward to increase the diameter,
or outward to decrease the diameter. The entry diameter should be .005” to .015”
under the minimum ID of the tube. Increase the pump pressure in 50 PSI increments
until the proper expansion rate has been achieved. Note:
DO NOT
exceed 1,500 PSI
as over-expansion and tube damage could occur. Once the proper expansion rate
has been achieved, you are ready to begin expanding the tubes in the heat transfer
vessel.
6. Insert the collet expander into the tube until the location collar (6) is seated against
the tube sheet. Depress the pendant switch for 2 to 3 seconds to expand the tube as
in step 4 above. Release the switch to return the collet expander to its minimum
diameter. Note: When using 2 or more extensions, center support of tool is required.
7. At this time you can rotate the expander 30° and repeat step 6 to maximize the tube
to tube support contact, or you can move to the next tube.
Proper Position of Collet
Page 2
Elliott “Collet Style” Baffle Expander
TM-37
TM-37
Elliott “Collet Style” Baffle Expander
Page 7
Summary of Contents for COLLET STYLE B9765 Pkg
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