Faema E61 valve chromed nut

The steam and water valve knob on this page is mainly famous as the knobs used on the classic Faema E61 espresso machines. But nowadays they are used in a variety of other brands as well. Like with Vibiemme, La Scala and Grimac. This type of knob can also be used on the modern Faema E61 legend and Jubilee espresso machines. For the part references check...