These pressure relief valves are made to the Cornelius standard and are compatible with Cornelius type kegs.

These are accurately made and batch tested for consistency, with the different colours suited to different Psi ratings.

This important safety mechanism has been manufactured to tight specifications to ensure it's reliability.

Please be aware that these pressure relief valves should be clean and maintained to work correctly.  If dried up beer or sugar gets into the pressure relief valve then clean this out immediately as this can effect the safe working and opening pressures.