October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Three Port PVS

On a three port PVS valve the center port is connected to a vacuum source. The top port is open and the bottom port is closed to the center port when coolant temperature is below PVS temperature range. The bottom port is open and the top port is closed to the center port when coolant temperature is above PVS temperature range.