Bead width

Bead width for butt-welding of PE pipe.

 

 

Measured outside of the pipe after completion of the cooling time.

The form is read as the minimum wall thickness. For example, if the wall thickness measured on the pipe is 10 mm, go up in the table to the nearest = 9 mm and read the bead width next to it. = permissible bead width 8-11mm
 
When using moldings (and pipes against the molding), the tolerance is extended by +/- 1 mm. (in the above example permissible bead width 7-12mm)

 

Min. wall thickness in millimeters. Bead width (V) in millimeters.
2 3-5
3 4-6
4 4-7
5 5-8
6 6-9
8 7-10
9 8-11
11 9-12
13 10-14
16 11-15
18 12-16
19 12-18
22 13-18
24 14-19
27 15-20
30 16-21
34 17-22
40 18-23
45 20-25
50 22-27
55 24-30
60 26-32
65 28-36

The above chart with Bead Width are indicative only , follow always pipe supplier’s guidelines