PFI TB1-2013

$12.35

Pressure-Temperature Ratings Used in Power Plant Piping Systems

Published By	Publication Date	Number of Pages
PFI	2013	5

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Category: PFI

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Description

This bulletin provides pressure ratings, in Imperial and SI units, for each pipe size and applicable schedule, 1/8 NPS through 48 NPS.

Selection of a suitable material must consider such items as service, temperature, safety, thermal shock, corrosion allowance, exposure to fire, system life and economy, using sound engineering judgment, and is not within the scope of this bulletin.

Referencing the applicable fabrication code will provide allowable stress values, "S", for a given material and temperature, weld joint efficiency "E", and temperature coefficient "y".

TB-1 will also provide a minimum design thickness, when a design pressure is provided.

The following formula and nomenclature are in accordance with ASME B31.1, Power Piping code, 2004 edition.

The pressure ratings provided in this technical bulletin may be used for other codes that utilize the same pressure formula as shown below, however, the nomenclature may be different.

It is the user's responsibility to determine if this bulletin is applicable.

Additional information