installation method of exhaust pipe of range hood

1. Installation of exhaust pipe of range hood, the first step is to install a check valve at the entrance of the flue, and then tighten the screws to fix the check valve. The function of check valve is to prevent oil smoke from flowing backwards, so it is necessary to install check valve whether it is in the public flue or outside the perforated passage.

2. connect the smoke exhaust pipe of the range hood with the installed check valve, put the smoke exhaust pipe of the range hood above the check valve, and then cover it vertically downward on the interface of the check valve.

3. People can use heat-resistant adhesive tape or electrical adhesive tape to seal the joint between the exhaust pipe and the check valve of the range hood.

4. The valve plate on the non-return valve is used to adjust the size of the air outlet. Therefore, when sealing, the smoke pipe should not be fixed by screws or drilling holes, so as to avoid blocking the valve plate of the non-return valve and causing the oil smoke to flow back.

5. The length of the standard smoke pipe is 15cm If the smoke pipe is to be extended, it must be sealed with adhesive tape when connecting the extended smoke pipe.

what are the precautions for installing the exhaust pipe of range hood?

1. The shorter the exhaust pipe of the range hood, the better, which is beneficial to exhaust smoke. If the exhaust pipe of the lampblack machine is pulled for a long time, after people turn off the lampblack machine, a lot of lampblack in the pipe will fall back indoors, and the smoke exhaust effect will not be achieved.

2. The opening direction of the exhaust pipe of the range hood should not be changed randomly, and it must be placed in the auxiliary flue to avoid damaging the original main and auxiliary flue.

3. The exhaust pipe of the range hood cannot be bent 91 degrees.

4. The height of the flue of the exhaust pipe of the range hood is not less than 1.6m.

5. The depth of the exhaust pipe of the range hood should be appropriate, and the closer the smoke exhauster is to the smoke outlet, the better.

6. If the exhaust pipe of the range hood needs to be perforated in the window to smoke, it should be approved by the property, and the end of the exhaust pipe is made of metal, so as not to hurt yourself or others.

7. If the smoke from the exhaust pipe of the range hood is discharged outside the wall, blinds should be installed outside the exhaust pipe.

8. If the smoke pipe of the exhaust pipe of the range hood leads out of the window, the north wind will blow against it, which will cause the oil fume to flow backwards. Therefore, the pipe should be nested downwards to prevent it from blowing backwards, and rainwater will flow into the pipe at the same time.