Buttweld Fittings in Piping (ASME B16.9)

Buttweld fittings are pipe fittings used to change the pathway of a pipeline (elbows), reduce/increase the pipe bore size (reducers), branch (tees, cross) or blind a pipeline (butt weld cap). ASME B16.9 (and MSS-SP 43).

Buttweld fittings are used for piping systems above 2 inches in diameter, whereas socket weld and threaded fittings are used for smaller size pipes (ASME B16.11).

Butt welding fittings have the following benefits

  • allow strong, and leak-proof, piping connections
  • minimize pressure drops and the turbulence inside the pipeline
  • have a long service life
  • are rather cheap to purchase and deploy

Read more: https://blog.projectmaterials.com/pipe-fittings/buttweld-fittings/