Hello

I have a question to ask.

Acc. to ASME Sec. IV HF-301.1 requirement, any ferrous plate, or pipe used in lieu of plate, under any pressure shall be 1/4in (6mm).

In point b) and c) of this same requirement there are exceptions but this exceptions don't apply to my design because MAWP will be 160 psi.

I would like to know if i have to use minimum 6mm thickness for every pressure bearing part inc. "nozzles" and "shells" due to this HF-301.1 requirement.

Parts like shells and nozzles can easily be calculated using other formulas.

I also wonder if wording "pipe in lieu of plate" describe parts which are normally made from plate (tubesheets, heads, shells) but can be manufactured from pipe instead. If i understand it right it shouldn't apply to nozzles.

Thank you for your help.

Lukasz

Hello

I have a question to ask.

Acc. to ASME Sec. IV HF-301.1 requirement, any ferrous plate, or pipe used in lieu of plate, under any pressure shall be 1/4in (6mm).

In point a) and b) of this same requirement we can find some exceptions but they don't apply to my design because my maximum pressure will be 160 psi.

I would like to ask if this mean that i have to use minimum 6mm thickness for every pressure bearing part inc. "nozzles" and "shells"?

Thank you for your help.

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lifting devices