Which radiator is the inlet valve and which is the return valve?

Two pipes are respectively connected to both sides of the radiator, one is the water inlet pipe, and the other is the return pipe. Generally speaking, the water inlet pipe is at a high position, and the low position is return pipe.

AG is low, that is, the upper valve is the intake valve and the lower valve is the return valve. How to adjust it specifically: According to the fact that the upper part is a water inlet valve and the lower part is a water return valve, this is designed according to the gravity principle of water, which flows from top to bottom, making it easy to use and discharge scale.

In addition, the floor heating pipeline is vertical, so when opening a small valve, it is opened vertically and closed horizontally; The large valve is on the main pipeline, and the supply return pipe is horizontal, so the horizontal valve is open and the vertical valve is closed; If there is a handwheel, turn it in the direction of the right thumb and vice versa. The handle opens along the pipeline, and the handle and the pipeline are closed at 90 degrees.

Extended data:

Precautions:

If the heating situation in the user's home has been relatively good and suddenly it is not hot, the possibility of heating failure is relatively high. Users are advised to contact the local heat exchange station to find out the specific situation before handling it.

Nowadays, many communities use geothermal energy for heating. Ren said that if geothermal energy is not hot, it may be that geothermal energy needs cleaning.

Ren told reporters that if the temperature difference between the geothermal water supply and return pipe is not big, and the temperature difference between the valve and the home is not big, then it is generally conceivable that the circulation is good and not blocked, and there is no need for cleaning. If the temperature difference between supply and return water is large, it means that the circulation speed of hot water in geothermal water pipeline is slow. It can be considered that there are many impurities in the geothermal pipeline that affect the circulation.

In terms of time, if the heating conditions in the user's home have been very good, it is not a problem to clean it once every two or three years or a little longer; If the heating company is heating normally and the heating efficiency of the user's home suddenly becomes worse, then clean geothermal energy can be considered.

Baidu encyclopedia-heating valve

People's Network-What if the heating in the house is not hot? Professionals come to help.