Burst Pressure & Hydrostatic Strength
(1 Mpa = 145 psi = 10 bar)
| (mm) | (inch) | Minimum brust pressure (MPa) | Min pipe ring strength (N) | Long-term hydrostatic strength (MPa) |
| 1014 | 3/8 | 7.0 | 2300 | 2.7 |
| 1216 | 1/2 | 6.0 | 2300 | 2.7 |
| 1620 | 5/8 | 5.0 | 2500 | 2.7 |
| 2025 | 3/4 | 4.0 | 2500 | 2.3 |
| 2632 | 1 | 4.0 | 2500 | 2.1 |
| 3240 | 1 1/4 | 3.5 | 2800 | 2.1 |
| 4150 | 1 1/2 | 3.5 | 3200 | 2.0 |
Low Heat Expansion
25X10-6 m/m.k, only 1/8 of polyethylene pipe’s, almost same to aluminium pipe’s. The permanent bond of plastic layers to the aluminium considerably reduces heat expansion.
Pressure Resistance
The diagram shows that Sant-Rifeng pipe will last you 50 years of operation under the set conditions and pressures. The forcing aging test by the Synthetic Materials Research Institute of Ministry of Chemical Industry has proved it as well
Low Oxygen Permeability
From the chart we can see, Sant-Rifeng multilayer pipe has an excellent resistance against oxygen, which surpasses the Germany SKZ standard(DIN 4726).
Comparison
Sant-Rifeng Pipe Versus Other Pipes
