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nbhide108
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Join Date: Apr 2009
Posts: 67

AD -2000 : Design Pressure

09/05/2012 1:25 PM

As per AD-2000: " The static pressure caused by the contains of the vessel duringservice and/or testing need not to be taken into account as long as they do not increasethe stress of the walls by more than 5%."

Is that means that static head can be concidered only if it increases the stress in walls more than 5%?

How to check wall stress?
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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
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#1

Re: AD -2000 : Design Pressure

09/05/2012 10:40 PM

No.

It may be considered in any case, but this is not mandatory if the static pressure adds ≤ 5% to the stress.

To check the wall stress, add the gas pressure above the liquid to the static pressure of the liquid at various depths; then apply appropriate formulas.

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