underground plastic HDPE gas pipe for natural gas supply and oil
USD $2 - $150 /Meter
Min.Order:50 Meters
Luoyang Max Import Export Trading Co., Ltd.
underground plastic HDPE gas pipe for natural gas supply and oil
Technical requirements of the PE gas supply pipes:
Items | technical requirements | |
Appearance | Outside and inner pipe surfaces shall be clean and smooth. Deficiencies including bubbles, obvious scratches, surface sinking, impurity and uneven colors are not allowed. Pipe ends shall be cut flat and keep vertical to the axis line. | |
Thermal stability(200°C).min | greater than 20 | |
Elongation at break. % | greater than or equal to 350 | |
Vertical retraction(110°C), % | less than 3 | |
Melt Flow Rate(MFR). (190°C.5kg)g/10 min | MFR rate of change less than 20% | |
Hydrostatic strength (MPa) | PE80 | (1). 20°C. Hoop stress 9.0MPa,time to rapture≥100h (2). 80°C. Hoop stress 4.5MPa,time to rapture≥165h (3). 80°C. Hoop stress 4.0MPa,time to rapture≥1,000h |
PE100 | (1). 20°C. Hoop stress 12.4MPa,time to rapture≥100h (2). 80°C. Hoop stress 5.4MPa,time to rapture≥165h (3). 80°C. Hoop stress 5.0MPa,time to rapture≥1,000h |