I have a pipeline with a DP of 900 psi that will be Hydrotested to 1125 psi
in this pipeline there are 6 ball valves to drain/ vent the pipeline. Those valves (rating # 600) and accordingly the max operating pressure for those valves are 1480 psi.
can I hydrotest the pipeline with valves in...
I need to hydrotest a new pipeline
the design pressure (DP) of this pipeline is 1200 psi
the Maximum Operating pressure (MOP) is 900 psi
shall I hydrotest the pipeline to 1.25 X DP (1200 X 1.25 = 1500 psi)
or
1.25 X MOP (1.25 X 900 = 1125 psi)
Good evening
Table 434.6-1 of ASME31.4 (2022) shows the Minimum Cover for Buried Pipelines in different locations. But what is the minimum depth of cover for a pipeline constructed in the Sahara (sand dunes) with frequent sand storm?
Under fault conditions on the powerline, the pipeline potential can reach thousands of volts. which is considered as a safety issue. In addition to the risk of AC corrosion in case of small coating damage.
My questions are
1- is this minimum distance depends on the liquid service (Oil, Gas or...
I have a pipeline with a design pressure of 1200 psi, and a pressure rating of #600
According to ASME B 31.4, the hydrostatic test pressure for a pipeline is 1.25 times the internal design pressure at that point. Could anyone advise which case of the following is correct for the hydrostatic test...
How to remove debris from internally coated pipeline with (TK 236) prior to commissioning (pigging or flushing)?
the pipes is 24in and the length is 55 KM.
the line pipe joints welded together using insert sleeve
I have 24 in pipeline, Thickness is 0.5 in, service is water
the design pressure for this pipeline is 1800 psi
the hydrostatic pressure is 2250 psi (90% of SMYS)
if this pipe is internally coated with Fusion bonded Epoxy (FBE), can i hydro-test the pressure to 2250 ?
or i need to consider the...
