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Pipe Welding Machines

Socket Fusion Welder

Socket fusion welder (pipe iron) for socket-welding PP-R and PE pipe and fittings; a heater with dies matched to the pipe size, in two models for 20 to 63 mm and 20 to 110 mm pipe.

  • Socket fusion of PP-R and PE pipe and fittings
  • Heater with a separate die pair for each size
  • Two models: 20 to 63 mm and 20 to 110 mm
  • Light and portable for building services work
  • State the diameter range and dies you need when buying
Socket Fusion Welder

Key Specifications

Product code
P174
Joint type
Socket fusion
Unit of sale
Machine
Dimensional options
2 rows in the specification table

What a socket fusion welder (pipe iron) is

A socket fusion welder, also called a pipe iron, is an electric heater onto which dies matched to the pipe size are fitted. The pipe end goes into one die and the fitting onto the other, both are heated together, and then the pipe is pushed into the fitting to make a single fused joint. The method is used mostly for PP-R pipe and fittings in building services.

Socket fusion differs from butt fusion: in butt fusion two pipe ends are melted face to face, while in socket fusion the pipe is fused inside a socket fitting. For polyethylene pressure lines, butt fusion and electrofusion are more common, and socket fusion is done only with socket fittings made for it.

Models and choosing a welder

Our rows list two models: 20 to 63 mm for building pipework and branches, and 20 to 110 mm for larger services work. Each model comes with several die pairs for the most-used sizes.

When buying, ask which dies are included and whether dies for other sizes are supplied separately. Read the heating time for each size from the pipe maker's table and the welder's instructions; overheating or underheating weakens the joint.

Safety and care of the pipe iron

The dies of a pipe iron have a non-stick coating and must stay clean; after each job, wipe off leftover plastic with a soft cloth and no metal tools. Always rest the hot welder on its own stand, and let it cool before moving it or changing dies.

For a sound joint, the iron must reach working temperature before you start; place pipe and fitting on the dies at the same time and, once heated, push them together without twisting.

Socket Fusion Welder — Technical Specifications

Wall thickness and weight are calculated from the standard series and are approximate; final values are confirmed in the quotation.

Socket Fusion Welder dimensions
Min Pipe OD (mm)Max Pipe OD (mm)
2063
20110

Socket Fusion Welder — FAQ

Is a pipe iron suitable for PE pipe?

For socket fusion with socket fittings made for it; PE pressure lines usually use butt fusion or electrofusion.

Which models are supplied?

A 20 to 63 mm model and a 20 to 110 mm model.

What is the difference from butt fusion?

In socket fusion the pipe fuses inside a fitting; in butt fusion two pipe ends fuse face to face.

Where do I find the heating time?

In the pipe maker's table and the welder's instructions.