Pe Pipe For Gas Supply

Standard & Application:
XuFan buried polyethylene pipes for gas are produced and inspected according to the requirement of national standard GB/15558.1-2003 Buried PE Pipes for Gas. By wall thickness, the polyethylene pipes are divided into SDR17.6 for natural gas and SDR11 for manufactured coal gas, natural gas and liquefied petroleum gas (gas state).
Features:
Corrosion resistance: Polyethylene (PE), as inert material, can resist the corrosion of many chemical media except a few strong oxidizers. It is free of electrochemical corrosion and needs no anti-corrosion coating.
Leakage resistance: PE gas pipes mainly adopt electric melting and thermal melting to integrate pipeline system. Compared with rubber sealed joint and mechanical joint, it is a kind o f pipeline with excellent shock resistance.
High tenacity: Polyethylene gas pipes are of high tenacity with breaking elongation ≥350%. It has a strong adaptability to uneven sedimentation of tube base and excellent shock resistance.
Excellent flexibility: The flexibility of polyethylene makes PE pipes at the diameter ≤160mm able to roll up. Applied in construction without cutting grooves, PE pipes have strikes changeable according to construction methods.
PE100 GAS Pipe Specifications ( Standard : GB15558.1-2003)
diameter(De mm) Pressure ratings
SDR17.6 SDR11
Pressure≤0.2MPa Pressure≤0.4MPa
Thickness(mm) Thickness(mm)
32 2.3 3.0
40 2.3 3.7
50 2.9 4.6
63 3.6 5.8
75 4.3 6.8
90 5.2 8.2
110 6.3 10.0
125 7.1 11.4
140 8.0 12.7
160 9.1 14.1
180 10.3 16.4
200 11.4 18.2
225 12.8 20.5
250 14.2 22.7
315 17.9 28.6
355 20.2 32.3
400 22.8 36.4
450 25.6 40.9
500 28.4 45.5
560 31.9 50.9
630 35.8 57.3

PE100 GAS PIPE PERFORMANCE REQUIREMENTS
No. Item Request
1 20℃hydrostatic strength (Central to the stress 20℃, 9.0 MPa ≥ 100 h) Not broken
2 80℃hydrostatic strength (Central to the stress 80℃, 4.5 MPa ≥ 165 h) Not broken
3 80℃hydrostatic strength (Central to the stress 80℃, 4.0 MPa ≥ 1000 h) Not broken
4 Elongation at break% >350
5 Longitudinal shrinkage（110℃），% ≤3
6 Thermal stability min（200℃） >20
7 Slow growth in crack-resistant（80℃，0.8MPa，165h） Not broken
8 Melt mass flow rate（MPa<20） 7.1