you need
  • • polyethylene pipes;
  • • Heater with PTFE heating surface;
  • • centering mechanism of pipes;
  • • mechanism that creates pressure for axial movement of the pipe end;
  • • tool for leveling and stripping edges of welded tubes.
Guide
1
contact butt welding

Prepare for welding: Measure the desired length, cut, strip the ends.The ends of welded pipes set into a special machine, align them and center.

place between the end of the electric heater with the appropriate attachments, it Abut ends of the pipes and hold until the polyethylene starts to melt.After that, through the mechanism for the axial movement of
one pipe end retracted rapidly remove the heater plate and the ends of the tubes as quickly as possible press together.In this position, hold the joint to its original cooling.Finally cool it with water.
2
for resistance welding (butt welding), you will need special equipment, which includes:
• Heater with PTFE heating surface;
• centering mechanism of pipes;
• mechanism that creates pressure for axial movement of the pipe end;
• tool for leveling and stripping edges of welded tubes.

Welding

into the socket for connecting pipes take special intermediate body - fitting.This can be a corner, tee, socket, depending on how it is necessary to make the connection.In a factory at the joints with the tubes soldered electric heating element.

Connect installed element to a power source, wait for the warm-up polyethylene.Parts and pipes are connected, the position fix to cool.The joint is ready.
3
Connection socket with flexible seals

This method is used to connect pipes whose work takes place without increasing the pressure inside them (for example, sewage pipes).At one end of the pipe tube is usually made, and the other in the form of a bell.
Put a normal end of the pipe elastic rubber ring seal.Insert it firmly in the socket end of the pipe.Because the inner and outer walls of the polyethylene pipe is very smooth, the compound will firmly and tightly.At the same time there is a possibility, if necessary, disassemble the joint.