HDPE Pipe For Gas

HDPE PIPE for GAS Danmark

ZHSU HDPE Gas Pipe is a polyethylene pipe ideal for applications in underground oil and gas gathering systems. HDPE pipe transfers oil and natural gas from wells to field storage tanks and separation equipment. It is manufactured from high quality PE 4710 resin material for higher performance and longer service life.

Introduction

Product Parameter:

ZHSU pipe specialized in producing underground gas polyethylene piping system for more than two decades, served 69 countries with reliable gas distribution system.

HDPE pipe for gas is a type of polyethylene pipe designed and ideally suited for use in oil and gas gathering systems underground,HDPE pipe is used in these applications for transporting oil and gas from wells to field storage tanks and separation equipment, manufactured from superior PE 4710 resin material for greater performance and an extended life expectancy, 100% new food grade virgin material, non-toxic.

SPECIFICATIONS

Material : High density polyethylen PE4710 / PE100

Size : DN20mm ~ DN1200mm

Certification : ISO9001,CE,SGS,CNAS

Pressure : PN2.5/SDR7.3 ~ PN6/SDR26

Standard : GB 15558.1-2003, ISO 4427, ASTM F2619&API 15 LE

Length : 4 meter / pcs, 3 meter/pcs , 5.8 meter/pcs, 11.8 meter/pcs

Joint : butt-fused joints

Size (mm)	PN16		PN12.5		PN10		PN8
Size (mm)	Thickness (mm)	Weight (kg/meter)	Thickness (mm)	Weight (kg/meter)	Thickness (mm)	Weight (kg/meter)	Thickness (mm)	Weight (kg/meter)
20	2.3	0.135
25	2.3	0.173
32	3	0.289	2.4	0.237
40	3.7	0.446	3	0.364
50	4.6	0.693	3.7	0.553	3	0.455
63	5.8	1.051	4.7	0.868	4	0.759
75	6.8	1.469	5.6	1.231	4.5	1.005
90	8.2	2.124	6.7	1.767	5.4	1.447	4.3	1.167
110	10	3.167	8.1	2.614	6.6	2.161	5.3	1.757
125	11.4	4.101	9.2	3.374	7.4	2.756	6	2.261
140	12.7	5.12	10.3	4.23	8.3	3.461	6.7	2.828
160	14.6	6.722	11.8	5.538	9.5	4.527	7.7	3.714
180	16.4	8.496	13.3	7.021	10.7	5.736	8.6	4.668
200	18.2	10.478	14.7	8.626	11.9	7.088	9.6	5.788
225	20.5	13.275	16.6	10.955	13.4	8.979	10.8	7.326
250	22.7	16.339	18.4	13.494	14.8	11.023	11.9	8.972
280	25.4	20.478	20.6	16.921	16.6	13.846	13.4	11.313
315	28.6	25.938	23.2	21.437	18.7	17.546	15	14.25
355	32.2	32.914	26.1	27.183	21.1	22.31	16.9	18.094
400	36.3	41.807	29.4	34.502	23.7	28.241	19.1	23.038
450	40.9	52.985	33.1	43.698	26.7	35.79	21.5	29.173
500	45.4	65.356	36.8	53.978	29.7	44.231	23.9	36.032
560	50.8	81.912	41.2	67.685	33.2	55.384	26.7	45.09
630	109.6	378.500	46.3	85.579	37.4	70.183	30	56.999
710					42.1	89.041	33.9	72.579
800					47.4	112.964	38.1	91.922
900							42.9	116.436
1000					59.3	176.646	47.7	151.6
1200					67.9	243.9	57.2	206.997

APPLICATION

1: Underground gas supply and drainage

2: Ventilation tubes in coal mines

3: Road,railway and tunnel ventilation system

4: Methane drainage pipelines

5: Carrying natural gas,coal gas,Bio-gas etc

HDPE PIPE BUTT FUSION METHOD

HDPE pressure piping system use butt fusion to connect for big size, socket fusion for small size

Butt fusion is using welding machine to heat pipe at both ends ( the temperature is 210 + - 10℃)until the pipe end melted, it should adhesion the HDPE pipe end rapidly and keep a certain pressure, after cooling, all the procedures have been finished, the following table is the reference for the welding procedures.

Wall Thickness (mm)	Technology
	Technology
	First: Pre-heating	Second: Fusion	Third: Switch	Fourth: Connection
	Pre-heating pressure:0.15Mpa	Pressure: 0.01Mpa	Max:Switch	Welding pressure :0.15Mpa
	Pre-heating temperature:210℃	Pre-heating temperature:210℃	Permission Time (s)	Cooling Time (s)
	Pre-heating Overlapping high	Heating Time (s)
2-3.9	0.5	30-40	4	4-5
4.3-6.9	0.5	40-70	5	6-10
7.0-11.4	1	70-120	6	10-16
12.2-18.2	1	120-170	8	17-24
20.1-25.5	1.5	170-210	10	25-32
28.3-32.3	1.5	210-250	12	33-40