Cellarbuoy extractor head

Cellarbuoy foam-detecting keg coupler head

The CellarBuoy foam‑detector keg coupler is vital for precise dispensing of draft beer and kegged beverages. It improves flow and ensures consistent, high‑quality service on every occasion.

The foam retainer valve for coupler heads eliminates unwanted foam when tapping a new keg of beer.

It signals the end of a keg when beer stops coming out of the tap, indicating it’s time to change the keg. The system automatically shuts the beer lines before excess gas (which creates foam) enters the line.

The line remains completely full of beer, ready to serve a perfect first glass after a new keg is connected.

Since the beer line is filled with beer at all times, microbiological growth in the beer line is significantly reduced.

The foam retainer valve for couplers is a mechanical device designed to keep beer lines balanced and stable (circuit filled with beer from keg to point of dispense) by preventing gas from entering the beer line when the keg is empty.

Significantly reduces beer wastage and downtime when changing kegs.

The purging action must be done while holding a glass; you will get around 2–4 cl of foam. You can choose not to purge the line and you will get 1/2–1 glass of foam when the new keg is connected, depending on the line length.

Version available for 1/2 BSP and 5/8 BSP threads

Keg change instructions:

1. Disconnect the keg coupler to release pressure

2. Disassemble the coupler’s pipe fitting

3. Install the device on top of the coupler head

4. Push the beer line into the JG fitting or use the JG straight 3/8 OD tube collet

5. Connect the coupler to the keg

6. Press the small button to purge the FOB [2 sec]

7. Press the large button to reset the system [2 sec]

User manual

Technical data sheet