Feature of PPR pipes and fittings:
1, heaithy and innocuous.
2, Anticorrosion, anti-encumbrance.
3, High temperature and pressure resistant.
4, Heat preservation and energy saving.
5, it's easy and convenient to install the pipes and fittings
6, The working time is very long--as long as 50 years
1, heaithy and innocuous.
2, Anticorrosion, anti-encumbrance.
3, High temperature and pressure resistant.
4, Heat preservation and energy saving.
5, it's easy and convenient to install the pipes and fittings
6, The working time is very long--as long as 50 years
| PP-R fitting physico-machanical performance of PP-R fitting | ||||||||
| Item | Experimental temperature | Experimental time h | Experimental pressure Mpa | Amount of experiment | Requries | |||
| Longitudinal shrink ratio | 135±2 | en≤8mm:1 8mmen≤16mm:2 en>16mm:4 | 3 | Ratio of failure10%sample quantity | ||||
| Treely supported beam impact test | 0±2 | 10 | No crake, No leaka | |||||
| Hydrostatic static pressure experiment | 20 | 1 | 16.0 | 3 | ||||
| 95 | 22 | 4.2 | ||||||
| 95 | 165 | 3.8 | ||||||
| 95 | 1000 | 3.5 | ||||||
| Heat stabilization test in hydrostatic condidtion | 110 | 8760 | 1.9 | 1 | ||||
| Hot recycle test | Hightest 95, lowest 20 | Times of recycle 5000 | 1 | 1 | ||||
| Melt flow ration, MFR(230/2.16kg)g/10min | ||||||||