La San Marco 85 Oval Touchpad Face Plate mazzer-astoria-rio-espresso-grinder-parts/mazzer-robur-grinder-parts Expansion valves like this one

Expansion valves like this one bleed off excess pressure in the hydraulic circuit

For more details please review the warranty card provided in the retail box

opening to drain excess water when pressure builds too high

A: The BW5000 Series is designed to draw from standard commercial bottled water containers commonly used in foodservice and beverage applications

Thanks to the micrometric grinding adjustment

La San Marco 85 Oval Touchpad Face Plate mazzer-astoria-rio-espresso-grinder-parts/mazzer-robur-grinder-parts Expansion valves like this oneLa San Marco 85 Oval Touchpad Face Plate Replacement face plate for the oval touchpad found on the 85 S E, Duale, New 80 L, and New 80 Preziosa models. Hardware is not included. COMPATIBILITY Fits: 85 S E, Duale, New 80 L, New 80 Preziosa INSTALLATION Simple swap once the old face plate hardware is removed (reuse existing screws). PRO TIPS No hardware is included with this part, reuse your existing mounting screws unless they're stripped or corroded.