EN 13445-5 and PED limitation of test pressure
EN 13445-5 and PED limitation of test pressure
(OP)
Hey everybody,
Considering a pressure vessel designed with EN13445 and PED, wit ref to § 10.2.3.3.1 of EN13445 that for says test pressure:
max 1.25 Ps fa/ft or 1.43 Ps under condition that test pressure was limited such a way not to increase design stress.
I understand that if test pressure is the governing condition we're allowed to reduce the test pressure to the maxi allowable pressure of the equipment in test conditions (I.E. ambiant temperature and 90% of yeld stress) with the thickness resulting of calculation for design.
If PED is applicable the test pressure is defined by greater of 1.25 Ps fa/ft or 1.43 Ps and PED doesn't offer possibility to reduce test pressure.
Does anybody have some recommendations or comments ?
Considering a pressure vessel designed with EN13445 and PED, wit ref to § 10.2.3.3.1 of EN13445 that for says test pressure:max 1.25 Ps fa/ft or 1.43 Ps under condition that test pressure was limited such a way not to increase design stress.
I understand that if test pressure is the governing condition we're allowed to reduce the test pressure to the maxi allowable pressure of the equipment in test conditions (I.E. ambiant temperature and 90% of yeld stress) with the thickness resulting of calculation for design.
If PED is applicable the test pressure is defined by greater of 1.25 Ps fa/ft or 1.43 Ps and PED doesn't offer possibility to reduce test pressure.
Does anybody have some recommendations or comments ?





RE: EN 13445-5 and PED limitation of test pressure
I would talk to your Notified Body about this to consider what is an equivalent level of safety.
RE: EN 13445-5 and PED limitation of test pressure
Can you clarify witch § of PED you are making reference to ?
RE: EN 13445-5 and PED limitation of test pressure
You can find it online at http://e
RE: EN 13445-5 and PED limitation of test pressure
I've found the sentence, thanks.
In my opinion it's not really sufficient to come to the conclusion that PED allows to reduce the test pressure to the maxi allowable pressure of the equipment in test conditions.
Have you experience of that ?
RE: EN 13445-5 and PED limitation of test pressure