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Belden hdpe gas pipeline

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Belden hdpe gas pipeline

Categories:company news
Author:
Origin:
Time of issue:2020-12-07 15:00
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(Summary description)PE gas pipe hdpe gas pipe PE gas pipe adopts gas polyethylene pipe with many excellent properties and is used in the field of gas transportation. The corrosion of steel pipes and cast iron pipes and the leakage of joints will be completely solved, thus ensuring the safe operation of the gas pipeline network system. The PE material selected for the PE gas pipe is an inert material, which can withstand the erosion of a variety of chemical media.

Belden hdpe gas pipeline





Belden hdpe gas pipeline

(Summary description)PE gas pipe hdpe gas pipe

PE gas pipe adopts gas polyethylene pipe with many excellent properties and is used in the field of gas transportation. The corrosion of steel pipes and cast iron pipes and the leakage of joints will be completely solved, thus ensuring the safe operation of the gas pipeline network system. The PE material selected for the PE gas pipe is an inert material, which can withstand the erosion of a variety of chemical media.

Categories:company news
Author:
Origin:
Time of issue:2020-12-07 15:00
Views:

Information

PE gas pipe hdpe gas pipe

PE gas pipe adopts gas polyethylene pipe with many excellent properties and is used in the field of gas transportation. The corrosion of steel pipes and cast iron pipes and the leakage of joints will be completely solved, thus ensuring the safe operation of the gas pipeline network system. The PE material selected for the PE gas pipe is an inert material, which can withstand the erosion of a variety of chemical media. The pipe wall has low friction coefficient, small flow resistance, and strong conveying capacity. It uses electric heat fusion connection. The interface strength is higher than the pipe body, and the high toughness PE fracture extension The length rate generally exceeds 500%. PE gas pipe has good seismic performance, resistance to slow crack growth (SCG), rapid crack growth (RCP), flexibility and scratch resistance. PE gas pipe has strong adaptability to uneven settlement of pipe foundation, strong wear resistance, and can adopt a variety of non-excavation methods, which greatly facilitates construction and installation, low system cost, low maintenance cost, and can be greatly reduced Engineering costs.

Performance characteristics of Belden Plastics PE gas pipe

1. Corrosion resistance. Polyethylene is an inert material. Except for a few strong oxidants, it can withstand the erosion of a variety of chemical media, without electrochemical corrosion, and does not require an anti-corrosion layer.

2. No leakage. PE gas pipeline mainly adopts welding connection (hot-melt connection or electro-fusion connection). Compared with rubber ring type joints or other mechanical joints, there is no danger of leakage due to joint distortion.

3. High toughness, PE gas pipe is a kind of high toughness pipe, its elongation at break generally exceeds 500%, and its adaptability to uneven settlement of pipe foundation is very strong. It is also a pipeline with excellent seismic performance.

4. Excellent flexibility. The flexibility of polyethylene enables PE gas pipes to be coiled. For non-grooving construction, the direction of the PE gas pipeline is easy to change according to the requirements of the construction method.

5. Good scratch resistance. It can effectively resist the stress concentration of the material caused by scratches and greatly reduce the possibility of pipeline damage.

6. Advanced structure of electrofusion pipe fittings. The non-exposed spiral heating wire guarantees uniform heat conduction in the welding zone, and effectively prevents short-circuiting when the pipe is inserted, and at the same time avoids the defect that the exposed heating wire is prone to aging and corrosion, and the inner wall of the pipe is smooth and flat, which is easy to install .

7. Good resistance to rapid crack transmission. The rapid cracking of the pipeline means that when the pipeline cracks accidentally, the crack grows at a speed of several hundred meters per second, which instantly causes a major accident that destroys the pipeline of tens of meters or even thousands of meters. In actual use, no rapid cracking of the polyethylene gas pipe has been found.

8. The hot melt (or electric melt) connection is convenient and reliable, and the construction and maintenance are simple (the air can be kept in the meantime).

9. Long service life, up to more than 50 years.

10. High strength, excellent environmental stress crack resistance and good creep resistance.

11. The inner wall is smooth, the flow capacity is large, and the gas flow rate can reach 20m/s, which saves construction costs.

12. It has good weather resistance (including UV resistance) and long-term thermal stability.

13. Good wear resistance and wear resistance.

14. Good low-temperature impact resistance, can be used safely in the temperature range of -20~40℃, and construction in winter will not be affected.

15. It is fully suitable for traditional excavation construction methods and new non-excavation technologies such as pipe jacking, directional drilling, liner pipe, pipe splitting, and submersion.

16. Polyethylene raw materials only contain two elements of carbon and hydrogen, which are harmless to the environment and are environmentally friendly

PE gas pipe implementation standard

The PE gas pipe implements the national GB15558.1-2003 standard.

PE gas pipe appearance: at least 3 yellow bars should be co-extruded on the black pipe, and the color bars should be evenly distributed along the circumference of the pipe.

PE100 gas pipe >> Specifications and performance parameters

Nominal outer diameter (De mm)	Pressure Level
	SDR17.6	SDR11
	Pressure≤0.6MPa	Pressure≤1.0MPa
	Wall thickness (mm)	Wall 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

Serial number	project	Claim
1	Hydrostatic strength at 20°C (circumferential stress at 20°C, 9.0MPa≥100h)	No damage
2	80℃ hydrostatic strength (hoop stress 80℃, 4.5MPa≥165h)	No damage
3	80℃ hydrostatic strength (hoop stress 80℃, 4.0MPa≥1000h)	No damage
4	Elongation at break%	>350
5	Longitudinal shrinkage rate (110℃),%	≤3
6	Thermal stability min (200℃)	>20
7	Resistance to slow crack growth (80℃, 0.8MPa, 165h)	No damage
	Melt mass flow rate (MPa<20)	7.1