Aquatherm 50336 Manual De Uso Y Mantenimiento página 16

PART C: WELD-IN SADDLES
aquatherm- weld-in saddles are available for pipe outer diameter
of 40 - 630 mm.
Weld in saddles are used for
• branch connections in existing installations
• the substitution of a reduction-tee
• branch connections in risers
• sensor wells, etc.
1. Before starting the welding process, check whether the aquatherm-
welding devices and tools comply with the requirements of
"Fusion Part A".
2. The first step is to drill through the pipe wall at the intended
outlet point by using the aquatherm- drill (Art.-No. 50940-
50956).
3. IMPORTANT!
Only the oxgen barrier layer of the aquatherm blue pipe OT Art.-No.
2170708-2170138 must be removed with the mentioned aquatherm
special peeling drills mentioned in the table beside.
For this the special peeling drill is inserted into the bore hole
and swaied 2-3 times with light pressure and low rotating speed
between the pipe walls until the oxygen barrier layer is completely
peeled off.
Remove burrs, debris and other dirts with a chamfering tool or the
aquatherm cleaning wipes. Do not touch the peeled surface any
more and protect it from new pollution.
When using aquatherm green pipe - stabi composite pipes remove
the rest of the aluminium remaining at the bore hole with the
aquatherm- chamfering device.
4. The welding device / saddle welding tool must have reached the
required operating temperature of 260 °C (check with reference
to "Fusion Part B, item 2").
5. The welding surfaces have to be clean and dry.
6. Insert the heating tool on the concave side of the weld in
saddle tool into the hole drilled in the pipe wall until the tool is
completely in contact with the outer wall of the pipe. Next the
weld-in saddle tool is inserted into the heating sleeve until the
saddle surface is up against the convex side of the welding tool.
The heating time of the elements is generally 30 seconds.
7. After the welding tool has been removed, the weld-in saddle
tool is immediately inserted into the heated, drilled hole. Then
the weld-in saddle should be pressed on the pipe for about
15 seconds. After being allowed to cool for 10 minutes the
connection can be exposed to its full loading. The appropriate
branch pipe is fitted into the sleeve on the aquatherm- weld-in
saddle using conventional fusion technology.
By fusing the weld-in saddle with the pipe outer surface and
the pipe inner wall the connection reaches highest stability.
Drilling through the pipe wall
Removal of the oxgen barrier layer from the aquatherm blue OT-pipe
aquatherm saddle
Art.-No.
peeling tools for
50921
aquatherm
50922
blue pipe ot
50924
pipes ø 50-125 mm
50926
50928
aquatherm saddle
Art.-No.
peeling tools for
50421
aquatherm
50422
blue pipe ot
50424
pipes Ø 160-250 mm
50426
50428
The welding tool is inserted into the pipe wall ...
...heating-up of the elements
Joining
Ready!
Dimension
for weld-in saddles ø 20 & 25 mm
for weld-in saddles ø 32 mm
for weld-in saddles ø 40 mm
for weld-in saddles ø 50 mm
for weld-in saddles ø 63 mm
Dimension
for weld-in saddles ø 20 & 25 mm
for weld-in saddles ø 32 mm
for weld-in saddles ø 40 mm
for weld-in saddles ø 50 mm
for weld-in saddles ø 63 mm