butt fusion

butt fusion (uncountable)

1. A technique for joining pipes by heating the pipe ends and then fusing them through pressure.
   • 1997, Thomas Sixsmith, Reinhard Hanselka, Handbook of Thermoplastic Piping System Design, →ISBN, page 179:

     Infrared butt fusion is quite similar to butt fusion with the key difference that the heating plate is considerably hotter (> 900°F, 480°C) and heat transfer is done entirely by radiation rather than by conduction.

   • 2002, Arun K. Deb, Decision Support System for Distribution System Piping Renewal, →ISBN:

     Polyethylene pipe can be joined using a butt fusion process, which creates a reliable leak-free joint.

   • 2016, Michael D. Holloway, Spend Analysis and Specification Development Using Failure Interpretation, →ISBN, page 143:

     This would not include butt fusion joints but would include failures in the mold seams of molded plastic fittings.