Carbon Steel system
165 psig
150°F
Normal Fluid Service
Is the hydrostatic test pressure 247.5 psig or 255 psig?
I have always calculated the hydrostatic test pressure in accordance with Equation 24 and used the allowable stresses of the pipe material (A106 Gr. B).
Is this correct...
Thank you for your replys.
We are still in the design phase. Nothing has been designed or purchased so I do have time. Installation estimate - Spring 2008.
Yes - I do understand that B16.5 allows me to exceed the 1.5* rating.
Yes - I did calculate the hoop and longitudinal stresses and I...
I have an Alloy 825 pipe system -
DT= 654°F; DP = 2820psig.
TP = 1.5*(2820)*(23.3/17.484) rounded up to next 25 psig increment or 5650 psig.
ASME B16.5 Class 1500 flange rating @ 100°F equals 3750psig. (Table F2-3.8)
Per Para 2.6 - I can system test these flanges to 1.5*3750 = 5625psig...
