installation

HDPE

HDPE PIPE FITTINGS

Petron Thermoplast

Socket Fusion Joint

INSTALLATIONS

(1) Socket Fusion Joint Step: (Use Socket Fusion Welding Machine)

1. Check and measure

  • Check the pipe and fittings to see whether they are damaged, and make the incision smooth.
  • Measure the depth of socket, mark on the pipe surface.

2. Chamfer

  • Chamfer the nozzle, the angle should be 30°, the length of surface groove should not exceed 2.0mm.

3. Clean and dry

  • Clean and dry the pipe’s spigot and the fittings’ socket.

4. Heat

  • Push the end of the pipe and fittings, without turning, upon the welding depth into the welding machine, heat up the end of the pipe and fittings.

5. Joint and cool

  • Pull out the pipe and fittings from the welding machine when the scheduled heating is over, insert the pipe’s spigot into the fittings’socket evenly and swiftly.
  • Not continue the next step until the scheduled cooling is over.

Recommended technical parameter for Solvent Fusion Joint 

(Thermal temperature is 260°C ± °C)

Outer Diameter (mm)
Heating Time(s)
Maximum Transit Time(s)
Minimum Cooling Time(s)
20
5
4
2
25
7
4
2
32
8
6
4
40
12
6
4
50
18
6
4
63
24
8
6

Butt Fusion Joint

INSTALLATIONS

(2) Electro Fusion Joint Step: (Use Electro Fusion Welding Machine)

1. Prepare

  • Prepare the necessary tools.

2. Clamp and clean

  • Clamp down the pipe on the jig, clean up the joint parts, mill the joint sides, and then adjust the joint parts to make the misplacement less than 10% of the wall thickness.

3. Heat

  • Put the heating panel.

4. Join

  • Remove the heating panel after finishing heating, join the two heating parts swiftly, increase pressure up to the fusion-joint pressure and keep until it cools down.

5. Complete

  • Butt Fusion Joint is completed.

Recommended welding parameter, which should be followed by the welders

Wall Thickness (mm)
Preheating Curling Height (mm) (Preheating Temperature is 210±10°C)
pPreheating Time(s) (Temperature is 210±10±C)
aAllowed Maximum Transit Time(s)
Cooling Time for the Weld Seam under Pressure-rreserving State (min)
2.0 - 3.9
0.5
30 - 40
4
4 - 5
4.3 -6.9
0.5
40 - 70
5
6 - 10
7.0 - 11.4
1.0
70 - 120
6
10 - 16
12.2 - 18.2
1.0
120 - 170
8
17 - 24
20.1 - 25.5
1.5
210 - 250
10
25 - 32
28.3 - 32.2
1.5
280 - 320
12
33 - 40

Electro Fusion Joint

INSTALLATIONS

(3) Electro Fusion Joint Step: (Use Electro Fusion Welding Machine)

1. Clean and mark

  • Clean up the connection part, mark the inserting depth.

2. Scrape

  • Scrape and polish the joint surface.

3. Align and restrain

  • Align and restrain the fittings to the pipe

4. Apply electric current

  • Apply the electric current to the fittings; the joining parts will be heated and melteh, turn off the current when there is melt flowing in the obeservation hole.

5. Cool

  • Cool without movement or pressure.

Note: While connecting, the heating voltage and time should comply with manufacture’s technical stipulations of Electro Fusion Welding Machine.

Transition Joint

INSTALLATIONS

(4) Join the PE Pipe and Iron Pipe by Flange Joint

1. Preparation

  • Prepare the necessary tools and accessories.
  • Check and clean the accessories.

2. Put the pipe in the Flange Tray.

3. Use socket fusion joint or butt fusion joint on the pipe and the flange stub.

4. Put the rubber ring between the two flange stubs, and then tighten the bolts

Trenchless Technology

INSTALLATIONS

(5) The technology os detecting, laying, repairing and changing various kinds of pipe by no excabation or less excavation.

1. Horizontal Directional Drilling Technology

  • The installation technology of directional drillling, chambering and pulling the pipe from different depth and different stratums by using the directional drilling equipments and location apparatus.