HDPE Electric Fusion 45 Degree Elbow
1. SPECIFICATIONS:
Specification | SDR Series | Dn | L1 | L |
Dn40 | SDR11 | 40 | 55 | 64 |
Dn50 | SDR11 | 50 | 57 | 74 |
Dn63 | SDR11 | 63 | 70 | 87 |
Dn75 | SDR11 | 75 | 72 | 86 |
Dn90 | SDR11 | 90 | 80 | 106 |
Dn110 | SDR11 | 110 | 86 | 115 |
Dn160 | SDR11 | 160 | 90 | 130 |
Dn200 | SDR11 | 200 | 105 | 154 |
Dn250 | SDR11 | 250 | 115 | 175 |
Dn315 | SDR11 | 315 | 130 | 205 |
Dn400 | SDR17.6/17 | 400 | 180 | 300 |
Dn450 | SDR17.6/17 | 450 | 205 | 323 |
Dn500 | SDR17.6/17 | 500 | 215 | 338 |
Dn560 | SDR17.6/17 | 560 | 235 | 368 |
2. ELECTRO-FUSION PROCESS
The following equipments and tools are required for the Electro fusion process:
A: Automatic Electro-fusion machine.
B: Power source compatible with the machine power.
C: Suitable pipe clamps.
D: Pipe cutter.
E: Electro fusion fittings with size similar to the pipe size.
F: Scrubbing tools.
G: Marker pen.
3. Basic performance of raw materials for pipe fittings
| Paramenter | Units | Requirement | Test Value |
| Density | kg/m³ | ≥930 | 23ºC |
| Melt flow rate | g/10min | 0.2~1.4 | 190ºC,5kg |
| Thermal slaility (OIT) | min | >20 | 200ºC |
| Volati lematter content | mg/kg | ≤350 | |
| Moisture content | mg/kg | ≤300 | ASTM D 4019:1994a |
| Carbon black content | % | 2.0~2.5 | |
| Crbon black dispersion | grade | ≤3 | |
| Gas proof components | h | ≥20 | 80ºC,2MPa(Hoop stress) |
Resistance to slow crack growth (En>5mm) | h | 165 | 80ºC,0.80MPa(Testing pressure) 80ºC,0.92MPa(Testing pressure) |
4. Performance requirement of pipe fittings
| NO. | Item | Requirement | Test value |
| 1 | 20ºC hydrostatic strength | No damage, no leakage | Hoop stress: PE80 10.0MPa PE100 12.4MPa Testing temperature: 20ºC Testing time: ≥100h |
| 2 | 80ºC hydrostatic strength | No damage, no leakage | Hoop stress: PE80 4.50MPa PE100 5.40MPa Testing temperature: 80ºC Testing time: ≥165h |
| 3 | 80ºC hydrostatic strength | No damage, no leakage | Hoop stress: PE80 4.50MPa PE100 5.40MPa Testing temperature: 80ºC Testing time: ≥1000h |
| 4 | Tensile strength of butt-fusion pipe fittings | Test to destruction: Flexible is good | Testing temperature:23ºC±2ºC |
| 5 | Welding strength of electro-fusion pipe fittings | Percentage of brittle peel: ≤33.3% | Testing temperature:23ºC±2ºC |
| 6 | Oxidation induction time | >20min | 200ºC |
| 7 | Melt flow rate | Tube melt rate of change not exceeding ±20% of the raw material | 190ºC, 5kg |
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