How to Calculate Hydrotest Pressure as per ASME & PED

[@mohsenk5985]

THANK YOU SO MUCH

[@yieldstress]

how long should the tank maintain the test pressure?

[@mohammedrizviuvais5751]

What about ASME B31.3 calculation.

[@tomracing79rc]

For your example the result it may be correct. However PED should also check for: 1.25*P*(S.T/S), as the larger of the values should be used. Additionally you are not allowed to exceed the conditons of PED ANNEX-I,7.1.2 for general membrane stress which I have not checked for this case.

[@SimpleScience]

Hi tom, thanks for your comment. We will review and come back.

[@mangeram2731]

Thanks sir ji

[@altafbhandari8643]

Make video of valve torque calculation

[@vimk]

For PED test pressure calculation, the slide wrongly shows the formula as Test pressure = 1.43 * Test pressure (this shall be design pressure instead)

[@SimpleScience]

Video shows that Test pressure = 1.43 x P, where P is design pressure which is correct only.

[@JAVEDAKHTAR-qt1tg]

What is PSIG

[@SH-bl9wh]

Pound square inch gauge. Imperial units in terms of gauge pressure and not absolute.

[@tejaajit7552]

Bro what is PED full form?

[@SH-bl9wh]

Pressure Equipment Directive (PED).

[@John-qw7jy]

for asme in the test pressure calculation formula, you substituted mawp with design pressure , which is wrong! mawp is a calculated value and not the same as design pressure!

[@JAVEDAKHTAR-qt1tg]

What is PSIG

[@technoconsultant8443]

Pascal square inch

[@NickWarren7]

PSI is Lbs / Sq.Inch - ASME standard is American so they use PSI, g is gauge so it is the gauge pressure rather than absolute. 14.5 psig = 1 barg

[@SH-bl9wh]

​@@technoconsultant8443 pounds per square inch