Preparations For Welding; Welding - Rothenberger ROWELD P 125 Instrucciones De Uso

3.2.2

Preparations for welding

 The end of the pipe is to be chamfered as shown in fig 1 and set out in Table 1.
 The connection area of the pipe is to be machined as specified by the manufacturer of the
shaped piece.
 Make the insertion depth at the end of the pipe over a distance as set out in table 1.
Pipe diameter
PE, PP, PVDF
d (mm)
16
20
25
32
40
50
63
75
90
110
125
Table 1
The inside of the shaped piece is to be cleaned thoroughly with a degreasing agent (for
example methylated spirits) and a non-fibrous paper!
Check weather conditions!
3.2.3

Welding

 Move the pipe and shaped piece quickly and axially to the mark on the heating arbour and
jack fitted on the heating element and fix them in place.
 Keep them secure for the heating time as shown in tables 2-4.
 After the elapse of the heating time, pull the pipe and shaped pipe out of the heating arbour
and jack quickly and push them together up to the mark immediately without turning them
(positioning time shown in tables 2-4).
 Hold the connection tight for the time shown in tables 2-4 and then allow it to cool.
The weld must not be stressed by further installation work until after the elapse of the
cooling time!
 After each weld the heating arbour and jack should be cleaned with non-fibrous paper and, if
necessary, methylated spirits.
The welding parameters shown in the tables are only guide values for which ROTHENBERGER
cannot accept any guarantee! The parameters recommended by the pipe and shaped piece
manufacturer must be obtained for the specific materials.
Pipe chamfer Insertion depth
PE, PP, PVDF PE, PP, PVDF
b (mm)
2
2
2
2
2
2
3
3
3
3
3
ENGLISH
l (mm)
13
14
16
18
20
23
27
31
35
41
46
Fig. 1
15