I have tubes connected to each other to make one lin 20 m long 1/2" O.D , stainless steel , for transfering CNG in a feuling station , the working pressure is 200 bar.
I need to know the leak test procedures which will be applied to this application before starting the station.
Best...
I need to know the change in temperature in(deg. c ) which will happen if the pressure of the natural gas is reduced from 1200 psi down to 80 psi using a step down regulator .