John Guest Fittings - Manitowoc Multiplex Beermaster 75A04 Technician's Handbook

John Guest Fittings

FUNCTION OF THE JOHN GUEST FITTINGS
Provide a "same inside diameter" connection for the
beer lines, causing a minimal or no amount of agitation
to the beer, reducing foaming. Also are used for the
glycol lines in series with the conduit tubing to provide
quick and easy connections for the glycol circuit.
FAILURE OF THE JOHN GUEST FITTINGS
These are very reliable fittings when installed properly.
The tubing must be cut with a razor type blade to
ensure tubing will not be crushed when cutting. The
tubing must be pushed completely into the fitting.
Wrong
Tubing
Collet
Collet Cover
Right
Tubing
Collet
Collet Cover
Part Number STH13 9/10 91