Dear LittleInch
I supposed to mean overall gas connot go through this bypass due to the pressure downstream extreamly decrease after the mainline valve is closed. I didn't say about te velocity because it's sure that the velocity go higher than 120 ft/s.
Not every of my pipeline is in this...
Thank you for your best answer. this is gas pipeline with some debris and liquid hydrocabon. when pigging all those substance could come into valve directly.
Ive known well this is quite bad for ball valve to do like this. Normally I do this way only 10-15 min per time and 3-4 times per year...
I have a trouuble with pigging operation. Let me introduce you first. see the picture attached for your reference. And if you know pigging operation well you will understand myquestion easily. While receiving a pig, if the bypass line at receiver station is not large enough and I could not fully...
