HDPE Ef Electro Fusion Welding tape/fitting for corrugated drainage pipe/sewage pipe
Structure of EF Band
HDPE sheets embed with nicochrome net by heating.
Application
Connection of Steel Reinforced Corrugated Pipes.
Features
1. The EF band is specially cut in to narrow piece to fit for the trough of the wave of SRCP, EF band is welded along with cutting edge of two pipes, ensuring strength of joint.
2. EF band is made by the same material as that of SRCP, the same material and melt flow rate ensures good results of sealing.
3. EF band is light and could be easily operated by setting parameters on adjustment instruments.
Installing/Operation
We can support our customers with two connection methods of SRCP,
1. " Inside welding, outside EF band"
2. " Inside welding, outside HSS", regarding information of heat shrink sleeve connection, we will introduce it separately in another chapter.
"Inside welding, outside EF band" means from inside of pipes, we use hand extrusion welder (For its more information please contact me) to weld seam of two pipes; here we talk about big pipes that workers can come inside, for small pipes, no need weld from inside. From outside we use the EF band to melt connect it.
Performance:
1. Waterproof;
2. Able to withstand axial forces initiated by axial movements of the pipe in the ground;
3. Able to withstand radial forces and bending moments;
4. Able to withstand the effects of temperature and temperature variations.
5. Have the same thickness of the line pipe insulation layer.
| Specification |
| Metal reinforced polyethylene spirally corrugated pipe diameter |
Size Length× Width× Thickness |
| DN600 |
2184× 50× 7 |
| DN700 |
2197× 50× 7 |
| DN800 |
2850× 60× 7 |
| DN900 |
3200× 60× 7 |
| DN1000 |
3500× 60× 7 |
| DN1100 |
3650× 60× 9 |
| DN1200 |
4030× 70× 9 |
| DN1300 |
4432× 70× 9 |
| DN1400 |
4750× 70× 9 |
| DN1500 |
5000× 70× 9 |
| DN1600 |
5287× 70× 9 |
| DN1800 |
5915× 70× 9 |
| DN2000 |
6542× 70× 9 |
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| Technical Data: |
| All of the test according to the EN253-2003, ISO1183-2004, ISO6964-1986, EN728-1997 |
| Final Test |
Unit |
Standard |
Test Result |
Result |
| Raw material density |
g/cm 3 |
≥0.935 |
≤0.961 |
PASS |
| Raw material melt flow rate |
g/10min |
≤0.50 |
0.46 |
PASS |
| Appearance check |
/ |
Internal and external surfaces are clean and free from other defects. |
Pass |
PASS |
| Heat reversion |
% |
≤3; shall not show any cracks |
0.89, No cracks |
PASS |
| Tensile yield strength |
Mpa |
≥19 |
20.2 |
PASS |
| Elongation at break |
% |
≥350 |
656 |
PASS |
| Stress crack resistance |
h |
≥300 |
Pass |
PASS |
Audited Supplier 
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