Drain Cup Expansion Valve

1/4″, 12 bar Expansion valve. Water occasionally trickling out of this valve is completely normal as it regulated excess pressure that builds up in the hydraulics of the machine. Cross-references : Part number Manufacturer MZ..28 Ascaso 528.791 Fast Ricambi 11990 Iberital L140C La Marzocco 1523506 LF 5236164 LF 300035 Nuova Ricambi L140CLM Nuova Ricambi