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PVC-U DWP Pipes
Description
The PVC-U DWP pipes are mainly made of
PVC.The inner side is smooth and the outer side has waves.It
is hollow between the inner and outer siteds.They are mainly
used in underground water and dirt drainage
system.
The apperaance of DWP pipes
is beautiful and the structure is special.The firmness can be
more than 8KN/m2.The joints use natural plastic sealing rings
to connect each other.having the advantages such as firm
connection,not easy to leak,easy operation,low cost,life time
more than 50 years,and etc.DWP pipes are the most commonly
used pipes for underground water and dirt drainage system
throughout the world.
pecification of DWP pipes
Inner diameter series of DWP
pipes:
| SpecificationDN |
225 |
300 |
400 |
500 |
600 |
| Item |
| Inner diameter of pipe Dri |
225 |
300 |
400 |
500 |
600 |
| Outer diameter of pipe Dro |
247.8 |
331.1 |
441.5 |
522.2 |
663.5 |
| Inner diameter of joint Dsi |
249.0 |
332.5 |
444.0 |
555.0 |
666.0 |
| Depth of joint Ls |
120 |
145 |
220 |
270 |
355 |
Outer diameter series of DWP pipes:
| SpecificationDN |
110 |
160 |
200 |
250 |
315 |
400 |
500 |
| Item |
| Inner diameter of pipeDri |
100 |
150 |
184 |
225 |
287 |
362 |
453 |
| Outer diameter of pipeDro |
110 |
160 |
200 |
247.8 |
315 |
400 |
500 |
| Inner diameter of jointDsi |
110.7 |
161.3 |
200.6 |
249.0 |
316.0 |
401.0 |
501.0 |
| Depth of jointLs |
111 |
111 |
120 |
120 |
140 |
200 |
240 |
Sketch map of rubbers sealing ring joint
Physical performance of rib pipes
| Item |
Standard |
| Joint airproof test |
No leakage,no breakage |
| Impace test TIR |
<=10% |
| Firmness |
>=8000N/m |
| Intersity |
1.35-1.50g/cm |
| Softness |
No leakage,no breakage |
| Oven test |
No delaminage,no breakage,no blister |
| Friedamp dipping |
Not worse than 4L |
| Roughness index |
n=0.010 |
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