Rancilio Complete Expansion Valve with Threaded Connection rancilio-silvia-v4-parts/rancilio-v4-body 8 mm thick ears and

8 mm thick ears and is a different part

so confirm fitment rather than assuming by brand alone

Drain and depressurize the boiler fully before removing the old tube

Fits: all previous Rancilio Rocky doser-model grinders

Featuring a dual hopper design

Rancilio Complete Expansion Valve with Threaded Connection rancilio-silvia-v4-parts/rancilio-v4-body 8 mm thick ears andRancilio Complete Expansion Valve, Threaded Connection A complete expansion (over pressure) valve for the old Rancilio S and Z series, as well as the Millennium model, both ends are threaded, unlike the R_525 which has a barbed outlet connection. SPECIFICATIONS 3 8" male x 1 4" male BSP thread, both connections threaded COMPATIBILITY Fits: Rancilio S series, Z series, and Millennium INSTALLATION Technician level, plumbed inline on the pump boiler