HDPE Gas Pipe

Product Description
The HDPE gas pipe takes the high quality polyethylene resin as its main raw material, according necessary anti-oxidant and anti-ultraviolet absorber auxiliaries and so on. It is one new product which is made of piling out. The HDPE gas pipe has the application of history of forty years around the world. It can be widely used in each kind of piping work, such as natural gas, liquefied petroleum gas, artificial gas etc.

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Specification

STANDARD:GB/T15558.2-2003
PE100 gas pipe
Nominal Outside Diameter(mm)	SDR17.6	SDR11
Nominal Outside Diameter(mm)	Wall Thickness (mm)	Wall Thickness (mm)	Weight（kg/m）
20	2.3	3.0	0.169
25	2.3	3.0	0.219
32	2.3	3.0	0.279
40	2.3	3.7	0.432
50	2.9	4.6	0.669
63	3.6	5.8	1.060
75	4.3	6.8	1.480
90	5.2	8.2	2.140
110	6.3	10.0	3.180
125	7.1	11.4	4.120
140	8.0	12.7	5.130
160	9.1	14.6	6.740
180	10.3	16.4	8.520
200	11.4	18.2	10.500
225	12.8	20.5	13.300
250	14.2	22.7	16.350
280	15.9	25.4	20.500
315	17.9	28.6	25.950
355	20.2	32.3	33.030
400	22.8	36.4	41.920
450	25.6	40.9	52.960
500	28.4	45.5	66.080
560	31.9	50.9	82.000
630	35.8	57.3	103.900

Product Performance

No.	Performance	Unit	Requirement		Test Parameter
1	Steady hydraulic pressure	h	Damage time≥100		20 ℃(hoop stress)
					PE80 9.0MPa	PE100 12.4MPa
			Damage time≥165		80℃(hoop stress)
					PE80 4.5MPa	PE100 5.4MPa
			Damage time≥1000		80℃(hoop stress)
					PE80 4.0MPa	PE100 5.0Mpa
2	Elongation	%	≥350
3	Anti Climate		Hot stability. HS(165h/80℃) Elongation at break		E≥3.5GJ/㎡
4	Resist fast crack propagation velocity(RPC)
	Full Size(FS) Examination DN≥250mm Or S4 examination. It is applicable to all diameters	MPa	Critical pressure of full size Examination P≥1.5xMOP Critical pressure of S4 examination P≥MOP/2.4-0.072	0℃
5	Resistance to slow crack growth e＞5mm	h	165	PE80, 80℃, 0.8MPa
				PE100, 80℃， 0.92MPa

Product Feature

■ Reliable connection

Polyethylene piping systems are connected by electric thermal fusion, and the strength of the joint is higher than the strength of the pipe body.

■ Good low temperature impact resistance

The low-temperature temperature of polyethylene is extremely low, and it can be safely used in the temperature range of -60-60 ℃. During winter construction, due to the good impact resistance of the material, brittle cracking of the pipe will not occur.

■ Good resistance to stress cracking

HDPE has low notch sensitivity, high shear strength and excellent scratch resistance, and its environmental stress crack resistance is also very outstanding.

4. Aging resistance, long service life

Polyethylene pipes containing 2-2.5% of uniformly distributed carbon black can be stored outdoors or used for 50 years without being damaged by ultraviolet radiation.

■ Good flexibility

The flexibility of HDPE pipeline makes it easy to bend. In engineering, it can bypass the obstacle by changing the direction of the pipeline. In many occasions, the flexibility of the pipeline can reduce the amount of pipe fittings and reduce the installation cost.

■ Easy to carry

HDPE pipes are lighter than concrete pipes, galvanized pipes and steel pipes, it is easy to handle and install, and lower manpower and equipment requirements mean that the installation cost of the project is greatly reduced.

Product Application

■ Urban and rural drinking water pipelines.

■ Chemical liquid, chemical fiber, food, forestry, printing and dyeing, pharmaceutical, light industry, paper, metallurgical and other industries.

■ Agricultural irrigation pipelines.

■ Post and telecommunications lines, power line protection sleeves.

■ Mine mortar conveying pipeline.