Can the check valve still work after thickness conversion?

The aperture of the kitchen flue check valve can be divided into three types: 150mm, 160mm and 180mm3, which can be installed on the glass or on the public flue without punching holes. Stick it on.

Flue check valve: The flue check valve refers to the check valve installed at the smoke crossing. Generally, when the house is handed over, the builder will provide it. The actual ventilation diameter is 15cm, and the inside is a metal baffle with eccentric shaft. It is difficult to achieve reverse complete sealing with this structure. Most of the check valves sold on Taobao are check valves installed at smoke crossings.

Range hood check valve:

The non-return valve of range hood is also called the name of air outlet, air outlet and air outlet range hood. It comes with the range hood, the bottom is fixed on the top of the range hood with screws, and the upper part is connected with a plastic telescopic smoke pipe. The check valve of range hood generally has two baffles, but the traditional check valve of range hood has the problem that the baffles are not tightly sealed (no matter how high-grade the range hood is).

In this way, there is a trouble with the aftertaste of the range hood. Different brands or models of range hoods are likely to be equipped with different range hood check valves, and there is no unified industry standard. The diameters of plastic telescopic pipes are basically divided into four types: 18cm, 17cm, 16cm and 15cm.

Plastic telescopic pipe: the caliber of plastic telescopic pipe is also divided into 18cm, 17cm, 16cm and 15cm. Only by measuring yourself can you know the diameter of your pipe.