Retention Valve e-91-due-parts/e-91-due-steam-valve-new This expansion valve bleeds off

This expansion valve bleeds off excess hydraulic pressure into the drain cup

and Aurelia II group heads

it's an easy way to tell aftermarket from original at a glance if you're troubleshooting a mixed set of portafilters in a cafe

the EE is often the better fit

If your grinder's dose timer has become erratic or won't complete a full cycle

Retention Valve e-91-due-parts/e-91-due-steam-valve-new This expansion valve bleeds off3 8" BSP Retention Valve A 3 8" x 3 8" BSP parallel thread retention (check) valve, most commonly found in Spanish made equipment such as Futurmat and Mairali, and also used in some La San Marco machines. SPECIFICATIONS Thread: 3 8" x 3 8" BSP, parallel COMPATIBILITY Fits: Spanish made equipment (Futurmat, Mairali, and similar), select La San Marco models INSTALLATION A straightforward DIY plumbing swap for anyone comfortable working with BSP threaded