Polyethylene ( PE ) Gas Piping System
PRODUCT DESCRIPTION
Traditional plastic pipe in the installation and use of construction due to irregularities caused by local point load, scratching problems are likely to have an impact on the pressure and life of the pipe, resulting in the growth of cracks on the inner and outer walls of the pipe and ultimately the pipeline to produce systematic anomalies, so for the quality of construction and the product's own higher performance requirements.
Donghong proposed a high slow crack growth resistant pipe (PE100-RC) product for the customer's usage characteristics and current diversified application scenarios, which eliminates the customer's worries and improves the service life of the pipe by more than 2 times, and improves the slow crack growth resistance of the pipe by more than 10 times compared to the ordinary gas polyethylene (PE) pipe.

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Product Structure


- Single-layer solid wall pipe.

-  The outer wall is covered with a peelable thermoplastic protective layer pipe.


Product Performance


No.
Item
Test Data
Index
1
Hydrostatic Strength (20 ℃,100h)
Cycle stress:PE80, PE100. 9.0Mpa, 12.0Mpa
No damage, no leakage
2
Hydrostatic Strength (80 ℃,165h)Cycle stress:PE80, PE100. 4.5Mpa, 5.4MpaNo damage, no leakage
3
Hydrostatic Strength (80 ℃,1000h)Cycle stress:PE80, PE100. 4.5Mpa, 5.4MpaNo damage, no leakage
4
Elongation at break ≤5 mm
Test Speed : 100 mm/min
≥ 350%
Elongation at break 5 mmen12mmTest Speed : 50 mm/min≥ 350%
Elongation at break  en12mmTest Speed : 25 mm/min≥ 350%
5
Resistant to slow crack growth en ≤5 mm (Vertebral body test)
-
< 10mm/24h
6
Resistant to slow crack growth en >5 mm (Notch test)Temperature 80℃, time ≥500h, inner pressure : for PE 80 0.8Mpa, for PE100 0.92 Mpa
No damage, no leakage
7
Resistant to rapid crack growthTemperature 0℃
Pc, s4 ≥ MOP/2.4-0.072 Mpa
8
Recovery after impression
-
No damage, no leakage



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