Group head valve schematic
This schematic shows how our espresso machines don't use a 3-way valve, but 2 separate 2-way valves. One valve is used for the shot, the other one for the drain.
mirjam created 2026/06/26.
This schematic shows how our espresso machines don't use a 3-way valve, but 2 separate 2-way valves. One valve is used for the shot, the other one for the drain.