Calculation For Pipeline Hydrostatic Test
Vab = Actual Volume Drained
Va = [(0.89x(r/s) ) + A]x (Vr/1000) x (P1-P2)
where by
P1 = Pressure in the pipe (Start of Holding) , Barg
P2 = Pressure in the pipe (End of Holding) , Bar
r = Radias of internal pipe ,mm
s = Norminal wall thickness , mm
A= Compressibility Coefficient (See table#1)
Vr = Total volume of Test Section in the pipeline , m3
Accept Criteria
0.94 < (Vab/Va) < 1.06
INPUT DATA
Enter Pressure in the pipe (Start of Holding) ,P1 (Barg.)
Enter Pressure in the pipe (End of Holding) ,P2 (Barg.)
Enter Radias of internal pipe (mm.)
Nominal wall thickness of pipe (mm.)
Enter Compressiblity Coefficient
Enter Total volume of Test Section ( m3 )
Enter Actual Volume Drained (liter.)
Version 1.0 , Last Update 6 Sep 2002