PE-RT II Pipe
Polygon PE-RT II pipe is made of Dowlex 2388 raw material.
Comparing with other PE-RT raw mateirals, Dowlex 2388 own many special advantages :
1. DOWLEX™ 2388 PE Resin is a type II PE-RT (Polyethylene of Raised Temperature Resistance) resin offering excellent strength.
2. By Now,no other polyethylene resin has been proven to perform like DOWLEX 2388 PE Resin in hot water pipes without being cross-linked. It is an ethylene-octene copolymer, produced by our proprietary Solution process and featuring a unique molecular structure with a controlled side chain distribution.
3. DOWLEX 2388 PE Resin provides improved hydrostatic strength and processability over existing materials in a variety of heating/cooling System and hot and cold drinking water supply networks. Pipes produced from the resin also offer excellent stress crack resistance, thermal conductivity, and good flexibility.
4. The excellent processability of DOWLEX 2388 PE Resin is a key benefit of the product, especially for the fastest growing market segment, composite pipes.
5. DOWLEX 2388 PE Resin offers two installation benefits: improved connectivity and greater flexibility than traditional materials. It can be welded, which enables connection through inexpensive, injection-molded connectors.
Applications
Polygon PE-RT II Pipe can be used for Hot and Cold Water System, e.g.:
1. Hot/cold drinking water distributions
2. Radiator connections
3. Heating/cooling applications
Polygon PE-RT II Pipe properties:
| Polygon PE-RT II Pipe Resistence to Internal Pressure | Industry Requirements | ISO22391 Requirements | |||
| Testing Coditions | Result | Testing Coditions | Result | Testing Conditions | Result |
| 20°C, 12.0MPA | 11.85H No Leakage, No Burst | 20°C, 11.4MPA | 1H No Leakage, No Burst | 20°C, 10.8MPA | 1H No Leakage, No Burst |
| 95°C, 4.5MPA | >1000H No Leakage, No Burst | 95°C, 4.4MPA | 22H No Leakage, No Burst | 95°C, 3.9MPA | 22H No Leakage, No Burst |
| 95°C, 4.3MPA | >1000H No Leakage, No Burst | 95°C, 4.2MPA | 165H No Leakage, No Burst | 95°C, 3.7MPA | 165H No Leakage, No Burst |
| 95°C, 4.0MPA | >1000H No Leakage, No Burst | 95°C, 4.0MPA | 1000H No Leakage, No Burst | 95°C, 3.6MPA | 1000H No Leakage, No Burst |
PE-RT II Pipe Hydrostatic Pressure Performance.
| Applying Conditions | Design Pressure( Δd:MPA) | |
| PE-RT I Pipe | PE-RT II Pipe | |
| 60°C hot water system | 3.29 | 3.81 |
| 70°C hot water system | 2.68 | 3.54 |
| Underfloor heating system | 3.25 | 3.84 |
| Radiator heating system | 2.38 | 3.10 |
Parameters of PE-RT Pipe
1. Dimensions: DN.16-63 mm
2. Made according to PEX tubing DIN 16893
3. Form supplied: coil