A check valve for ventilation based on a 110-millimeter-diameter drainage pipe.

I used the commonly available 110-millimeter drainage pipes on the market to build this ventilation system myself.
I used these pipes for the ventilation design of my kitchen.

The previous version performed poorly. Affected by hot air, the film gradually lost its original shape and contour.

And the performance of this new version is extremely excellent.

Under the high temperature environment in summer, after the exhaust test of the hot air generated by the gas stove, I was pleased to find that the whole system ran smoothly and achieved ideal results after three months of continuous use.

A check valve for ventilation based on a 110-millimeter-diameter drainage pipe.

I used the commonly available 110-millimeter drainage pipes on the market to build this ventilation system myself.
I used these pipes for the ventilation design of my kitchen.

The previous version performed poorly. Affected by hot air, the film gradually lost its original shape and contour.

And the performance of this new version is extremely excellent.

Under the high temperature environment in summer, after the exhaust test of the hot air generated by the gas stove, I was pleased to find that the whole system ran smoothly and achieved ideal results after three months of continuous use.