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Pressure Calculations rounded off to the next higher 25 Psi

Pressure Calculations rounded off to the next higher 25 Psi

Pressure Calculations rounded off to the next higher 25 Psi

(OP)
Hi Memebers,

I have a couple of questions in relation to Max Allowable Operating Pressure and Saftey Valve (PRD) calculations.

As per ASME B16.5: 2.Pressure Temperature Ratings/2.5 System Hydrostatic Test. It states that "Flanged joints and flanged fittings may be subjected to hydrostatic tests at a pressure not to exceed 1.5 times the 100°F rating rounded off to the next higher 25 Psi"

My questions are:

1.Can I apply this same rule to the Max Allowable Operating Pressure Calc (For Pipe)? If so, where is the clause located in the ASME B31.3 Code?

2. Can I apply this same rule to the Safety Valve (PRD) set pressure Calc? If so, where is the clause located in the ASME B31.3 code?

Reason: If I am able to round off to next higher 25 Psi. I would like to provide a note under the calculation section stating that the 'Actual' pressures calculated have been rounded off to the next higher 25 Psi, As per ASME B31.3 Clause Etc. Etc.

I appreciate any help you could provide.

RE: Pressure Calculations rounded off to the next higher 25 Psi

No.

RE: Pressure Calculations rounded off to the next higher 25 Psi

(OP)
Thanks for the comment stanweld. After I wrote this, I did some searching online and found the answer.

Cheers





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