It's not recommended. The submarine check valve has a good reputation and many people are using it.

do not install the check valve in the cabinet, because there will be a gap between the cabinet and the wall, which will seriously affect the effect of the check valve.

the check valve must be installed on the ceramic tile, so that the bricklayer can stick the wall tile on which the check valve is installed to the top, make holes in the ceramic tile according to the size of the check valve bought in advance, and apply a circle of sealant around it after installation. Advantages and disadvantages of submarine flue check valve

Because it has to bear a lot of pressure, the materials it uses are also very expensive, and its technology is also very complicated, which reflects the scientific and technological level and manufacturing level of a country. The price of submarine flue check valves is not cheap, mainly because the positioning of this brand is biased towards the middle and high end. It has outstanding performance in the overall materials work and product cost performance.

The advantage of submarine flue check valve is to prevent the one-way discharge of seawater backflow. The disadvantage is that the convection effect with the outside fresh air is poor because it is discharged in one direction. Experience of fire-proof check valve in kitchen

The kitchen and bathroom have bought the check valve of submarine

The kitchen should not only prevent smoke but also prevent fire, so the check valve of fire-proof submarine has three sizes, 16cm 18cm and 2cm, which can meet the needs of different calibers. It has a certain weight in hand.

The check valve bought in bathroom has three sizes when it is hungry, and the innermost circle can be removed.

Yuba bought Op.