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Home > HDPE Blog > Seamless Fusion Techniques For Joining HDPE Gas Pipes

26

Sep

Seamless Fusion Techniques For Joining HDPE Gas Pipes

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When joining HDPE gas pipes, seamless fusion techniques are commonly used to ensure strong and reliable connections. Here are two popular seamless fusion techniques for joining HDPE gas pipes:

Butt Fusion

      • Butt fusion is the most commonly used technique for joining HDPE gas pipes.
      • The ends of the pipes are brought together and heated simultaneously using a specialized butt fusion machine.
      • The heated ends are then pressed together with controlled force to create a seamless fusion between the two pipes.
      • This fusion process ensures a leak-free and strong joint.

 

Electrofusion

      • Electrofusion is another seamless fusion technique used for joining HDPE gas pipes.
      • Electrofusion fittings with built-in heating elements are used in this technique.
      • The fittings are placed at the ends of the pipes to be joined.
      • An electrofusion control unit is used to energize the heating elements, which heat and melt the HDPE pipe surface and fitting.
      • The melted surfaces are brought together and held under pressure until they cool and form a secure bond.

 

PP Compression Fittings

      • Choose a PP compression fitting suitable for the size and pressure requirements of the gas pipes.
      • Slide the compression nut onto the pipe, followed by the compression ring.
      • Insert the pipe fully into the fitting until it reaches the stop point or the marked insertion depth.
      • Use a wrench or spanner to tighten the compression nut clockwise until it is securely fastened. Avoid over-tightening.
      • Conduct a pressure test to ensure the joint is leak-tight and inspect for any signs of leakage.

 

Both butt fusion and electrofusion techniques provide durable and reliable joints for HDPE gas pipes. It’s important to follow the manufacturer’s guidelines and use specialized equipment and fittings designed for each fusion technique. Additionally, ensure that the fusion operations are performed by trained and certified professionals to maintain the integrity and safety of the gas pipe system.



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