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 | ||||
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 | |||
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 |