Rancilio Silvia Expansion/Over Pressure Valve (OPV) Rebuild Kit

Rancilio Silvia expansion valve, also called over pressure valve (OPV) rebuilt kit. This kit is for machines built after 2006 that include the adjustable OPV. Kit includes the spring, a viton oring as well as the valve seat and gasket. You will need to calibrate the OPV to open at 9 bars so you may want to consider purchasing a portafilter pressure gauge kit since the Silvia does not have a pressure gauge. Rancilio part numbers 10060006, 39110040 and 36404039.