Cellarbuoy ECOFOB - Foam detector for cold room
The CellarBuoy EcoFob foam detector is key for precise dispensing of draft beer and kegged beverages, ensuring proper flow and a superior flavour experience with every pour.
The Cellarbuoy* ECOFOB (Fob Detector, beer monitor) is a mechanical device designed to keep beer lines balanced and stable (circuit full of keg beer up to the dispense point) by preventing gas from entering the beer line when the keg empties.
It prevents excess gas in the line and therefore considerably reduces beer waste and downtime when changing kegs. The bottom of the float has a conical base to seat the ball at the bottom, preventing the float from drifting off-center in the Cellarbuoy.
Purge button valve to release excess gas. Prevents accidental emptying of the new keg thanks to the automatic spring‑loaded shut‑off.
Cellarbuoy keg change instruction manual
Purge valve with auto shut-off.
Dispensing capacity for multiple taps.
Chamber volume 3 ½ fluid ounces (103.5 ml).
Side inlet, beer outlet at the bottom.
Stainless steel ball in plastic with integral lock for easy cleaning.
Solid plastic construction.
Works up to 100 PSI (7 bar)
Two‑piece set for easy cleaning and maintenance.
Dimensions: 90x250x70mm.
Connections: beer inlet 3/8", beer outlet 3/8" and purge outlet 3/16"
Includes one meter of 3/16" tubing for purging the Cellarbuoy.
*It is advisable to keep Cellarbuoys constantly chilled in a cold room or refrigerator.

When the beer stops coming out of the tap, it means the keg is empty. You must then disconnect the empty keg and connect a full one.
1st – Vent the cellarbuoy through the small valve located at the top.
2nd – Make sure the Cellarbuoy container is filled right to the top and close the valve after use.
3rd – Press the release button upwards to purge the contents.
4th - Check that the ball rises to the top of the cellarbuoy container.
5º – When the CellarBuoy container is full and the ball is at the top, pull the release button down to the lower position.
6º – Make sure you do not leave the ball release button in the upper (purge) position.