Instrument Tubing and Fitting

The following points provide brief guideline in tubing and fitting design for instrument tubing and fittings. The selection preferences may vary between projects.

  • Selection of hook up materials shall consider process fluid pressure and pressure rating to ensure good sealing and integrity.
  • Tubing thickness shall be selected based on application pressure rating. Consult with the manufacturer for pressure rating of each tubing thickness.
  • Double compression-type tubing fittings are preferred.
  • It is absolutely necessary to use a single manufacturer’s type components of tubing and fitting for the whole project.
  • Mixing different threaded fittings from different manufacturers is not allowed as it could leads to poor fitting sealing.
1 Like

A good selection is very important. It reduces problems during installation and during plant working. The installation is also important (who install the components must know exactly how to do it).
Swagelok has prepared a pocket guide for the installer where indicates also some advices for the selection of materials and components. Here the link:

1 Like