Rancilio - OPV gasket | 36301041
Quantity:
Genuine Rancilio part 36301041
This is the rubber gasket that fails inside the over pressure valve (OPV) in you Silvia. You will know that it has failed because one of the pipes in the water tank will be bubbling air constantly when the machine gets up to temperature. After replacing this part you will also need a portafilter with a pressure gauge to calibrate the pressure at the group head.