The following points provide brief guideline in tubing and fitting design for instrument tubing and fittings.
The selection preferences may vary between projects.
Instrument Tubing and Fittings
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Selection of hook up materials shall consider process fluid pressure and pressure rating to ensure good sealing and integrity.
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Tubing thickness shall be selected based on application pressure rating. Consult with the manufacturer for pressure rating of each tubing thickness.
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Double compression-type tubing fittings are preferred.
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It is absolutely necessary to use a single manufacturer’s type components of tubing and fitting for the whole project.
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Mixing different threaded fittings from different manufacturers is not allowed as it could leads to poor fitting sealing.