Materials & preparation
Welding parameters from KWH, Uponor, Wavin and Egeplast (PE 100, SDR 26)
Manufacturer tables side by side: pressures, times and temperatures for PE 100 SDR 26 as well as PVDF, and what to do when the figures deviate from the standard.
KWH Pipe, PE 100, SDR 26
The KWH table works with a heater plate temperature of 220 °C, a bead width of 1 mm and a soaking time at zero pressure. The changeover time is 4-5 seconds, and the pressure build-up time is 6-8 seconds.
| Outer diameter | Heating force | Soaking time | Changeover max. | Pressure build-up max. | Welding force |
|---|---|---|---|---|---|
| Ø90 | 185 N | 51 s | 4 s | 6 s | 185 N |
| Ø110 | 274 N | 63 s | 4 s | 6 s | 274 N |
| Ø125 | 352 N | 71 s | 4 s | 7 s | 352 N |
| Ø140 | 440 N | 80 s | 4 s | 7 s | 440 N |
| Ø160 | 581 N | 92 s | 5 s | 8 s | 581 N |
| Ø180 | 722 N | 102 s | 5 s | 8 s | 722 N |
Heater plate temperature 220 °C, bead width 1 mm, drag pressure to be added. The source specifies only this part of the table; larger diameters and other SDRs follow the supplier's instructions.
Uponor ProFuse, PE 100, SDR 26
For ProFuse, the outer jacket is not removed prior to welding. The heater plate temperature is 240 °C with a tolerance band of +5/-5 °C, and the process includes a separate preheating phase where the jacket slides off the heater plate and rolls back before actual heating begins.
| Outer diameter | Preheating force | Soaking time | Changeover max. | Pressure build-up max. | Welding force | Welding and cooling time |
|---|---|---|---|---|---|---|
| Ø63 | 77 N | 38 s | 4 s | 5 s | 77 N | 11,2 min |
| Ø75 | 105 N | 44 s | 4 s | 5 s | 105 N | 11,4 min |
| Ø90 | 149 N | 50 s | 4 s | 6 s | 149 N | 11,6 min |
| Ø110 | 224 N | 60 s | 4 s | 6 s | 224 N | 12,1 min |
| Ø125 | 288 N | 72 s | 4 s | 7 s | 288 N | 12,4 min |
| Ø140 | 364 N | 81 s | 4 s | 7 s | 364 N | 12,7 min |
| Ø160 | 477 N | 92 s | 5 s | 8 s | 477 N | 13,1 min |
| Ø180 | 594 N | 105 s | 3 s | 8 s | 594 N | 13,4 min |
| Ø200 | 737 N | 85 s | 5 s | 9 s | 737 N | 13,8 min |
| Ø225 | 926 N | 94 s | 5 s | 10 s | 926 N | 14,3 min |
| Ø250 | 1.147 N | 104 s | 6 s | 11 s | 1.147 N | 14,8 min |
| Ø280 | 1.431 N | 115 s | 6 s | 11 s | 1.431 N | 15,3 min |
| Ø315 | 1.823 N | 129 s | 6 s | 12 s | 1.823 N | 16,0 min |
Heater plate temperature 240 °C, +5/-5 °C. Preheating time is governed by when the jacket slips off the heater plate. Diameters above Ø315 follow the supplier's table.
Wavin PE SafeTech, PE 100, SDR 26
SafeTech is welded at 240 °C with a tolerance band of +5/-5 °C. The preheating phase is run until the bead width reaches 1-2 mm, after which heating continues at zero pressure. The table covers Ø90 to Ø630.
| Outer diameter | Wall thickness | Preheating force | Heating time | Changeover max. | Welding force | Welding and cooling time |
|---|---|---|---|---|---|---|
| Ø90 | 3,5 mm | 185 N | 40 s | 5 s | 185 N | 6 min |
| Ø110 | 4,2 mm | 220 N | 40 s | 5 s | 220 N | 6 min |
| Ø125 | 4,8 mm | 286 N | 45 s | 5 s | 286 N | 7 min |
| Ø140 | 5,4 mm | 360 N | 55 s | 5 s | 360 N | 8 min |
| Ø160 | 6,2 mm | 472 N | 60 s | 5 s | 472 N | 9 min |
| Ø180 | 6,9 mm | 592 N | 70 s | 5 s | 592 N | 10 min |
| Ø200 | 7,7 mm | 733 N | 80 s | 6 s | 733 N | 11 min |
| Ø225 | 8,6 mm | 922 N | 90 s | 6 s | 922 N | 12 min |
| Ø250 | 9,6 mm | 1.143 N | 100 s | 6 s | 1.143 N | 14 min |
| Ø280 | 10,7 mm | 1.427 N | 110 s | 6 s | 1.427 N | 15 min |
| Ø315 | 12,1 mm | 1.816 N | 120 s | 8 s | 1.816 N | 16 min |
| Ø355 | 13,6 mm | 2.300 N | 130 s | 8 s | 2.300 N | 17 min |
| Ø400 | 15,3 mm | 2.916 N | 145 s | 8 s | 2.916 N | 18 min |
| Ø450 | 17,2 mm | 3.688 N | 162 s | 8 s | 3.688 N | 19 min |
| Ø500 | 19,1 mm | 4.550 N | 163 s | 10 s | 4.550 N | 20 min |
| Ø560 | 21,4 mm | 5.710 N | 180 s | 10 s | 5.710 N | 21 min |
| Ø630 | 24,1 mm | 7.233 N | 200 s | 10 s | 7.233 N | 22 min |
Heater plate temperature 240 °C, +5/-5 °C. Preheating is run until the bead width is 1-2 mm. Drag pressure must be added to the specified forces.
Egeplast Egelen and Egelen Plus, PE 100, SDR 26
Egelen is welded at 220 °C with a tolerance band of +/- 10 °C, and the table specifies both the bead width prior to pressureless heating and the recommended final bead. For Egelen Plus, the protective jacket must be stripped back 2-2.5 cm before welding.
The Egelen table is also used for the carrier pipe in SLA Barrier Pipe, but in this case the jacket must be stripped and reassembled according to Egeplast's instructions.
| Outer diameter | Heating force | Heating time without pressure | Changeover max. | Pressure build-up max. | Welding force | Welding and cooling time | Recommended bead |
|---|---|---|---|---|---|---|---|
| Ø110 | 213 N | 64 s | 4 s | 3 s | 213 N | 11 min | 4-7 mm |
| Ø125 | 277 N | 73 s | 5 s | 4 s | 277 N | 11 min | 4-7 mm |
| Ø140 | 342 N | 81 s | 5 s | 4 s | 342 N | 12 min | 5-8 mm |
| Ø160 | 449 N | 93 s | 5 s | 5 s | 449 N | 13 min | 6-9 mm |
| Ø180 | 570 N | 105 s | 5 s | 6 s | 570 N | 13 min | 6-9 mm |
| Ø200 | 697 N | 115 s | 5 s | 6 s | 697 N | 13 min | 6-9 mm |
| Ø225 | 886 N | 130 s | 5 s | 6 s | 886 N | 14 min | 7-10 mm |
| Ø250 | 1.097 N | 145 s | 5 s | 6 s | 1.097 N | 15 min | 8-11 mm |
| Ø280 | 1.369 N | 162 s | 6 s | 7 s | 1.369 N | 15 min | 8-11 mm |
| Ø315 | 1.725 N | 183 s | 6 s | 8 s | 1.725 N | 16 min | 9-12 mm |
| Ø355 | 2.202 N | 205 s | 7 s | 9 s | 2.202 N | 17 min | 10-14 mm |
| Ø400 | 2.789 N | 231 s | 8 s | 10 s | 2.789 N | 18 min | 10-14 mm |
| Ø450 | 3.545 N | 261 s | 9 s | 11 s | 3.545 N | 19 min | 11-15 mm |
| Ø500 | 4.369 N | 285 s | 10 s | 13 s | 4.369 N | 20 min | 12-18 mm |
| Ø560 | 5.477 N | 320 s | 10 s | 14 s | 5.477 N | 21 min | 12-18 mm |
| Ø630 | 6.932 N | 360 s | 10 s | 15 s | 6.932 N | 22 min | 14-19 mm |
Heater plate temperature 220 °C, +/- 10 °C. The table applies to SDR 26. Egelen Plus requires the protective jacket to be stripped back 2-2.5 cm before welding.
PVDF pipes
PVDF is welded at 240 °C with a tolerance band of +/- 8 °C. The material has a higher melting point than PE and PP, and the forces are lower because PVDF is more rigid. The table lists forces in kp as given in the source, and covers multiple wall thicknesses per diameter.
| Dimension | Wall thickness | Heating force | Bead min. | Heating time | Changeover max. | Pressure build-up max. | Welding force | Cooling time |
|---|---|---|---|---|---|---|---|---|
| Ø20 | 1,9 mm | 2 kp | 0,5 mm | 59 s | 3 s | 3 s | 2 kp | 4,5 min |
| Ø25 | 1,9 mm | 2 kp | 0,5 mm | 59 s | 3 s | 3 s | 2 kp | 4,5 min |
| Ø32 | 2,4 mm | 3 kp | 0,5 mm | 64 s | 3 s | 3 s | 3 kp | 5,0 min |
| Ø40 | 2,4 mm | 3 kp | 0,5 mm | 64 s | 3 s | 3 s | 3 kp | 5,0 min |
| Ø50 | 3,0 mm | 5 kp | 0,5 mm | 70 s | 3 s | 4 s | 5 kp | 5,5 min |
| Ø63 | 3,0 mm | 6 kp | 0,5 mm | 70 s | 3 s | 4 s | 6 kp | 5,5 min |
| Ø63 | 3,8 mm | 8 kp | 0,5 mm | 78 s | 3 s | 4 s | 8 kp | 6,5 min |
| Ø75 | 3,6 mm | 9 kp | 0,5 mm | 76 s | 3 s | 4 s | 9 kp | 6,5 min |
| Ø75 | 4,5 mm | 10 kp | 0,5 mm | 85 s | 3 s | 5 s | 10 kp | 7,5 min |
| Ø90 | 4,3 mm | 12 kp | 0,5 mm | 83 s | 3 s | 4 s | 12 kp | 7,0 min |
| Ø90 | 5,4 mm | 15 kp | 0,5 mm | 94 s | 3 s | 5 s | 15 kp | 8,5 min |
| Ø110 | 5,3 mm | 18 kp | 0,5 mm | 93 s | 3 s | 5 s | 18 kp | 8,5 min |
| Ø110 | 6,6 mm | 22 kp | 0,6 mm | 106 s | 4 s | 5 s | 22 kp | 10,0 min |
| Ø125 | 6,0 mm | 23 kp | 0,6 mm | 100 s | 4 s | 5 s | 23 kp | 9,0 min |
| Ø140 | 6,7 mm | 29 kp | 0,6 mm | 107 s | 4 s | 6 s | 29 kp | 10,0 min |
| Ø160 | 7,7 mm | 37 kp | 0,7 mm | 117 s | 4 s | 6 s | 37 kp | 11,0 min |
| Ø180 | 8,6 mm | 47 kp | 0,8 mm | 126 s | 4 s | 6 s | 47 kp | 12,5 min |
| Ø200 | 9,6 mm | 58 kp | 1,0 mm | 136 s | 4 s | 7 s | 58 kp | 13,5 min |
| Ø225 | 10,8 mm | 73 kp | 1,0 mm | 148 s | 4 s | 7 s | 73 kp | 15,0 min |
| Ø250 | 11,9 mm | 90 kp | 1,1 mm | 159 s | 4 s | 8 s | 90 kp | 16,5 min |
| Ø280 | 8,6 mm | 74 kp | 0,8 mm | 126 s | 4 s | 6 s | 74 kp | 12,5 min |
| Ø315 | 9,7 mm | 94 kp | 1,0 mm | 137 s | 4 s | 7 s | 94 kp | 13,5 min |
Heater plate temperature 240 °C, +/- 8 °C. Forces in kp as in the source (1 kp approx. 9.8 N). Changeover times are maximum values. For guidance only; always follow the pipe manufacturer's instructions.