China Construction Home Water Supply System, Find details about China Water Supply Pipe, Honeywell PPR from Construction Home Water Supply System
Metric outer dia. dn | Metric wall thickness en | |
S 3.2 | S 2.5 | |
20 | 2.8 | 3.4 |
25 | 3.5 | 4.2 |
32 | 4.4 | 5.4 |
40 | 5.5 | 6.7 |
50 | 6.9 | 8.3 |
63 | 8.6 | 10.5 |
Design pressure Mpa | Level 1 σ d=3.09Mpa | Level 2 σ d=2.13Mpa | Level 4 σ d=3.30Mpa | Level 5 σ d=1.90Mpa |
0.4 | 5 | 5 | 5 | 4 |
0.6 | 5 | 3.2 | 5 | 3.2 |
0.8 | 3.2 | 2.5 | 4 | 2 |
1.0 | 2.5 | 2 | 3.2 | - |
Item | Test parameters | Index | ||
Temperature ºC | Time h | Ring stress Mpa | ||
Longitudinal retraction rate | 135±2 | Wall thickness ≤8 mm is 1 8 mm<wall thickness ≤16 mm is 2 Wall thickness >16 mm is 4 | ≤2% | |
Pendulum impact test | 0±2 | - | Damage rate<10% | |
Hydrostatic test | 20 | 1 | 16.0 | No penetration No breaking |
95 | 22 | 4.2 | ||
95 | 165 | 3.8 | ||
95 | 1000 | 3.5 | ||
Hydrostatic, Thermal stability test | 110 | 8760 | 1.9 | No penetration No breaking |
Note: When the total use (design) coefficient C of the piping system is 1.25, the relationship between the pipe series S and the nominal PN is as follows: |
Pipe series | S 5 | S 4 | S 3.2 | S 2.5 | S 2 |
Metric Pressure MPa | 1.25 | 1.6 | 2.0 | 2.5 | 3.2 |