Power supply: Prepare no less than 15KVA generator.
HDPE pipe fitting suppliers remind you to pay attention to generator output stability at all times
2. Ensure that experienced and authorized personnel perform the operation.
3. The welding place should be protected from sand, water vapor and direct sunlight.
When the ambient temperature is below +5°C, tents should be pitched at the joint and pre-heating facilities provided to provide the temperature at the joint.
4. Do not remove the protective film before cleaning the pipe socket.
5. Check whether the carat pipe socket is damaged during transportation.
6. Adjust the position of the carat pipe for easy welding.
7. Clean the socket with PE special cleaner and no velvet or pigment.
8. Use a waterproof pen to mark the insertion depth at the socket of the carat tube.
9. Insert the two kra pipes together and note the marks on the joints. Then adjust the vertical and horizontal positions of the kra pipes. Do not use water at the socket.
10. Place the inner support ring at the socket of the carat tube, about 20mm away from the wrong end of the carat tube. Pipe diameter >= DN 800.
All this work must be done before welding.
11. Place the locking chain or tension belt in the fixing slot at the socket. The chain fixing block should be staggered from the welding wire connection at least 25cm away.
DN / ID ]
Voltage [V]
Time [sec.]
Quantity of welding wire
300
15
780
1
400
18
840
1
500
20
900
1
600
24
1020
1
700
25
1080
1
800
33
1020
1
900
39
720
1
1000
40
1080
1
1100
41
1200
1
1200
43
1260
1
1300
46
1320
1
1400
28
1020
2
1500
32
1020
2
1600
33
1080
2
1700
34
1200
2
1800
40
1900
2
1900
38
1100
2
2000
39
1200
2
2300
44
1380
2
12. Tighten the chain by referring to the Manual for Tightening the Chain.
13. When the length of the carat pipe is not enough, the socket should be trimmed separately.
14. Connect the two ends of the welding wire to the two wing electrodes of the electric fusion welder.
Pay attention to the welding process do not force the welding wire, so as not to cause short circuit.
15. Start welding by reading the code or manually entering welding parameters.
16. When the welding time is over 2/3, the chain should be adjusted and tightened again to make the welding more firm.
17. After welding, use waterproof pen to make marks (label, date, welding voltage, time, welder model, etc.). Remove the electrode.
18. Do not move the clat during the cooling process.
19. After the end of cooling (about 40 minutes, according to the ambient temperature), remove the tensioning chain and inner support ring.
20. After welding, according to DIN EN 1610 (DN 700 e.g. Test the tightness of the air by air tight method
It is very important to test for tightness before proceeding to landfill.