Check Valve For Beer Engine
EWL Mk4 Check Valve - 3/8JG In - 1/2" Straight Stem Out
Check Valve (Demand Valve) with 3/8" John Guest IN + 1/2" Smooth Stem Tail OUT.
The smooth 1/2" Stem outlet allows the outlet of this unit to be fitting with a John Guest Push-Fit fitting.
A Check Valve is used in the beer line just before the beer engine to stop the beer flowing forward through the beer engine when there is no demand (pump not being pulled).