Yes it is, I have one connected to the keg of Apfelwein and am using it to serve a glass or two from it now and again and the serving pressure is set at 10 psi. Haven't had issues with foam, but then again I haven't tried it with beer yet either. I will take your advice to heart cause you have never steered me wrong. I only needed the spanner nut and adapter as I already had the pin lock connector and the tap rite faucet. So at worst I'm out $10.........