How it Works
The float drain is normally open. A pilot operated discharge valve closes at approximately 14 PSI line pressure to seal the drain. Liquid raises the float and lets pilot air open the discharge valve. Discharged liquids lowers float closing pilot valve and line pressure closes discharge valve. System pressure produces a strong on-off action. When the compressed air system is shut down, the discharge valve returns to its normally open position and liquid drains by gravity. Unit has a manual override to check operation. A threaded outlet is provided to pipe discharge to remote locations.