Harold, Very well put, the compressed air must be cooled to achieve the required pressure dew point. Or put through an adsorption type dessicant air dryer. traps and drains will only get rid of liquid, not entrained vapor. By the way we met once in Fredricksburg, while I still worked for Woodward. You were involved in a dessicant dryer presentation if I remember correctly. Around 1993-94? Glad to see you on KRnet!!
Best Regards, Riley Collins Rutledge, TN