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Polyethylene (PE) pipe for gas

Huaxi Village brand PE gas pipeline, the product quality fully meets the national GB15558.1-2015 (buried polyethylene pipe for gas) requirements. The production process strictly implements the ISO9001 and IS014001 guarantee systems. Under the specified conditions of use (refer to CJJ63-2018), its service life can reach 50 years. Perfect quality assurance system, advanced testing methods and strict testing system ensure the excellent quality of the company's products. Over the years, the company's pipe pass rate is 100%, and the factory pass rate is 100%.

Key words

Earthquake and weather resistance

It has strong adaptability to uneven foundation and dislocation, and can withstand harsh environments such as earthquakes and typhoons.

Ultra high strength

Always maintain high strength, excellent resistance to environmental stress cracking, and good creep resistance.

preservative

Corrosion-resistant, no need for anti-corrosion treatment, and long service life.

Environmentally friendly and non-toxic

Non-toxic, safe and hygienic, polyethylene itself is a non-toxic and renewable material that will not pollute the environment.

Easy construction and maintenance

The connection is convenient and reliable, the construction and maintenance are simple (the water does not stop during the period), and it is suitable for excavation and trenchless technology.

Low temperature shock resistance

It has good low temperature impact resistance and can be used safely in the range of -20 to 40°C, and it will not be affected by winter construction.

Maximum allowable working pressure (MPA) for polyethylene pipes

Types of Town Gas		PE80 PE100
Types of Town Gas		SDR11	SDR17	SDR11	SDR17
natural gas		0.50	0.30	0.70	0.40
liquefied petroleum gas	mixed air	0.40	0.20	0.50	0.30
liquefied petroleum gas	gaseous	0.20	0.10	0.30	0.20
artificial gas	dry gas	0.40	0.20	0.50	0.30
artificial gas	other	0.20	0.10	0.30	0.20

Performance requirements

performance	unit	Require	Test parameters	experiment method
Hydrostatic strength (HS)	h	Destruction time 2100	20°C (ring stress) PE80 PE100 9.0Mpa 12.4Mpa
		Destruction time N165	80°C (ring stress) PE80 PE100 4.5Mpa 5.4Mpa	GB/T 6111-2003
		Destruction time 21000	80°C (ring stress) PE80 PE100 4.0Mpa 5.0Mpa
Elongation at break	%	2350		GB/T 8804.3-2003
Weatherability is only available for non-black pipes		After climate aging, the following properties should be met: Thermal stability (table below) HS (165h/80°C) (table) Elongation at break (table)	E>3.5GJ/m2	GB/T 17391-1998 GB/T 6111-2003 GB/T 8804.3-2003
Resistant to rapid crack propagation (RCP)
Full-size (FS) test: dn≥250mm or S4 test: suitable for all diameters	Mpa Mpa	Critical pressure for full-scale testing, Pc.FS≥ 1.5xM0P Critical pressure of the S4 test Pc.s4≥ MOP/2.4-0.072d	0℃ 0℃	ISO 13478:1997 GB/T19280-2003
Resistant to slow crack growth >5mm	h	165	80°C, 0.8Mpa (test pressure) 80°C, 0.92Mpa (test pressure)	GB/T 18479-2001

Physical properties of the pipe

project	unit	performance requirements	Test parameters	experiment method
Thermal stability (oxidation induction time)	min	>20	200℃	GB/T 17391-1998
Melt Mass Flow Rate (MFR)	g/10min	20% change in MFR before and after processing<	190℃, 5kg	GB/T 3682-2000
Vertical retraction rate	%	≤3	110℃	GB/T 6671-2001

Specifications

Material Grade/Standard Size Ratio	SDR17		SDR11
PE80	The maximum permissible pressure PN≤0.3P		The maximum allowable pressure PN≤0.5Pa
PE100	The maximum allowable pressure PN≤0.4Pa		The maximum allowable pressure PN≤0.7Pa
Specification Nominal outer diameter (mm)	Wall thickness (mm)	Weight (kg/m)	Wall thickness (mm)	Weight (kg/m)
D20			3.0	0.16
D25			3.0	0.21
D32	3.0	0.28	3.0	0.28
D40	3.0	0.35	3.7	0.43
D50	3.0	0.45	4.6	0.66
D63	3.8	0.71	5.8	1.05
D75	4.5	1.01	6.8	1.47
D90	5.4	1.45	8.2	2.13
D110	6.6	2.16	10	3.17
D125	7.4	2.76	11.4	4.11
D140	8.	3.47	12.7	5.13
D160	9.5	4.53	14.6	6.73
D180	10.7	5.75	16.4	8.51
D200	11.9	7.10	18.2	10.49
D225	13.4	8.99	20.5	13.30
D250	14.8	11.04	22.7	16.36
D280	16.6	13.87	25.4	20.51
D315	18.7	17.57	28.6	25.98
D355	21.1	22.34	32.2	32.96
D400	23.7	28.28	36.4	41.97
D450	26.7	35.84	40.9	53.06

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Polyethylene (PE) pipe for gas

NONE

Polyethylene (PE) pipe for gas