Turn the handwheel clockwise when opening the valve, and counterclockwise when closing it, and rotate it in place according to the opening and closing instructions. Do not replace the radiator or drain water from the system at will. Without hot water, the water temperature in the pipe network will drop rapidly, resulting in a drop in indoor temperature.
Don't open and close the valve on the heating pipe at will. If it is the first time to run the heating system, it usually needs debugging. If the valve is found to be faulty, stop using it immediately, find out the reason and eliminate the fault.
Extended data
Matters needing attention in valve treatment when radiator leaks.
Users who control the radiator alone should close the two valves (indoor main valves) at the entrance of the indoor pipeline in time, and users who have control valves in the old system should close the radiator control valve quickly.
When the radiator has no control valve, if the situation is particularly urgent and uncontrollable, you can quickly close the main valve in front of the building with the help of others, and call the service number of the external network maintenance personnel in time.
Baidu encyclopedia-heating valve