7 Fusion
Operating instructions GF 500
14
7.2
The fusion process
In order to weld pipes and/or fittings d < 500 mm, insert matching
clamping half shells and fasten them with the screws.
X
Clamp pipe/pipe, pipe/fitting or fitting/fitting in the clamping
element.
Pipe and/or fitting ends need to reach out at least 4 cm from the
pipe clamps in order to perform a proper weld. Make sure they are
exactly aligned in the axial direction.
If necessary, the pipes/fittings can be turned or the clamping force
changed with the clamping screw to achieve a better clamping
position.
Adjustable roller supports or a floating suspension assist horizontal
movement of the pipes clamped in the slide.
7.2.1
Calculating drag pressure
Danger of crushing hands!
Machine slide moves!
Danger of injury in the moving machine slide!
:
When moving to the end positions do not reach into the machine.
The machine drag pressure must be calculated before each new fusion.
1.
Open machine to stop.
2.
Reduce pressure with the fine-adjustment pressure valve (turn
counter-clockwise).
3.
Increase pressure with the fine-adjustment pressure valve while
simultaneously pulling control lever in the “close ><” direction (turn
clockwise).
4.
Check the movement pressure on the manometer. As soon as the
machine slide moves evenly.
7.2.2
Calculating of the fusion pressure
The fusion pressure is the sum of the “table value + movement pressure”
(e.g.
44 bar*
+
7 bar
= 51 bar)
* for HD–PE d 400 mm, SDR 11see Chapter 7.5, pg. 19, Time/Pressure
diagram
Warning
Attention
fine-
adjustment
4 cm
4 cm
