Operating instructions SG 160
8 Fusion
21
8
Fusion
8.1
Butt fusion
For butt fusion with a heating element, the parts to be joined (pipe/pipe,
pipe/fitting or fitting/fitting) are heated to fusion temperature in the fusion area
and are fused under pressure without the use of additional materials.
The heating element butt fusion joint must be done with a controllable
equalization pressure. See pressure/time tables, Chapter 8.1.5, from pg. 29.
Only the same type of materials are to fuse.
The wall thicknesses in the fusion area need to be the same.
Correct
Incorrect
Only the same wall thicknesses in the fusion
area!
Equalization- and fusion pressure are identical.
The heat soak pressure is significant lower, but the contact between the
pipe/fitting and the heating element needs to be ensured.
Attention
1
2
3
4
5
Содержание SG 160
Страница 56: ...11 Customer service Operating instructions SG 160 52...
Страница 57: ...Operating instructions SG 160 11 Customer service 53...
Страница 58: ......
Страница 59: ......