Product description:
the entire liquid circulation is hermetic, with an expansion vessel, the expansion vessel and the liquid circulation are adiabatic, do not participate in the liquid circulation, but are mechanically connected, regardless of whether the temperature of the liquid circulation is high temperature or the medium in the low temperature expansion vessel is less than 60 degrees..
the entire liquid circulation is a closed system. There is no absorption of water vapor at low temperatures. There is no oil mist at high temperatures. The heat transfer oil can have a wide operating temperature; mechanical and electronic valves are not used in the entire circulation system.