7 Fusion
Operating instructions GF 500
20
Heating element butt fusion of HD-PE
Time/Pressure tables according to DVS 2207/1
S 20
SDR 41
Pipe outer diameter
200
225
250
280
315
355
400
450
500
Wall thickness
mm
4.9
5.5
6.2
6.9
7.7
8.7
9.8
11.0
12.3
Fusion surface
mm²
3003
3793
4749
5920
7434
9465
12013
15171
18846
Equalization/fusion
pressure
bar 3 4 5 6 8 10 13 16 20
Bead
height
mm 1.0 1.0 1.0 1.0 1.5 1.5 1.5 1.5 2.0
Heating
pressure
bar 1 1 1 1 1 1 2 2 3
Heat
soak
time
sec 49 55 62 69 77 87 98 110 123
Change-over
time
sec 5 5 6 6 6 6 7 8 8
Pressure
build-up
time sec 5 5 6 6 6 6 7 8 8
Cooling
time
min 7 8 9 10 11 12 13 15 16
S 16
SDR 33
Pipe outer diameter
200
225
250
280
315
355
400
450
500
Wall thickness
mm
6.2
6.9
7.7
8.6
9.7
10.9
12.3
13.8
15.3
Fusion surface
mm²
3775
4728
5861
7333
9304
11783
14981
18911
23298
Equalization/fusion
pressure
bar 4 5 6 8 10 13 16 20 25
Bead
height
mm 1.0 1.0 1.5 1.5 1.5 1.5 2.0 2.0 2.0
Heating
pressure
bar 1 1 1 1 1 2 2 3 3
Heat
soak
time
sec 62 69 77 86 97 109 123 138 153
Change-over
time
sec 5 6 6 6 7 8 8 8 9
Pressure
build-up
time sec 6 6 6 6 7 8 8 9 10
Cooling
time
min 9 10 11 12 13 15 16 18 20
Curve for standard
values for heater
temperatures in
relation to pipe wall
thickness
Process steps for
heating element butt
fusion
1 2 3 4 5
