Max. operating temperature: 110℃
When filling the medium, close the valve on the middle, and
open the rest two valves at the same time. Fill the medium from
the left valve. When there is medium venting from the right side,
it means the medium has been filled up.
Then if you want to reach a certain pressure for the system,
close the right valve. When the pressure has reached the desired
valve on the pressure gauge, close the left valve, and open the middle
valve at the same time. The whole process is finished.