[terryo]

Hi zoisite117,

You should contact your Festo rep and ask if they can provide the Cv. My rep said that the liters/minute flow rate in this size valve will approximately correlate to the Cv, if you multiply liters/minute * 0.001. In this case 350 l/m would approximate a Cv of 0.35.
Also, the max port size is limited to 1/8" npt- this valve port is M7 (> 1/4").
But it should be available in a 1/8" version.

Good luck.