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Drain Cup Expansion Valve


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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.  


Part number Manufacturer
MZ..28 Ascaso
528.791 Fast Ricambi
11990 Iberital
L140C La Marzocco
1523506  LF
300035  Nuova Ricambi
L140CLM Nuova Ricambi