I recently witnessed a pressure test followed by the leakage test. Pressure dropped from 161psi to 159psi for 5,710 ft of 8-inch DI pipe. Is there a way for me to verify the leakage (7.5 gal) theore

How do they work? In relation to upsteam flows/pressures and downstream flows/pressures?

I've just been reading about two-stroke diesel engines. How come there aren't any cars or road vehicles with this type of engine?

I have burned out two compressor motors in a very short period of time and want to know if anyone has any ideas on what to check, I would greatly appreciate the help.

I'm working on ball valves specifications and Our client spicify the following standards for fire tests ISO 10497 / API 607 and API 6FA.

We have one order from my client to supply ON/OFF valve from size 4 up to 24 inch. Application is highly sour (H2S and CO2 and water and also a little CL). Material that costumer is ordered is A186 F6

I'm working in a project where my customer bought used equipment. It has steam supply piping A-53A and A-53B(6", 4", 3", 2", 1" dia. sizes), and condensate return piping (3", 2", 1 1/2", 1") A-53A. I

API 6A covers face to face dimensions only up to 7-1/16 Ball valve size. Is there any other standard, I can refer to, for 2000 to 20000 PSI Ball valves?