Every time it’s meal time, the aroma of food may come to the host’s home, making people hungry. However, this kind of aroma means that the oil fumes from your home have followed the public flue to your home. Today, the editor will explain to you what a check valve is and what brand of check valve it is.
1.
What is a check valve
1. Function
The check valve generally refers to the flue check valve. Used in household range hood exhaust ducts, its main function is to prevent the backflow of oil smoke. The flue check valve is a valve used at the joint between the range hood smoke pipe and the flue. It is mainly composed of valve body, rocker, valve cover, etc.
2. Classification
Check valves include range hood check valves, flue check valves and dry check valves. The range hood check valve is also called the air outlet, air exhaust port, and air outlet hood. It comes with the range hood. The bottom is fixed to the top of the range hood with screws, and the upper part is connected to the plastic telescopic smoke pipe. There are usually two baffles inside the range hood check valve. However, because the traditional hood check valve has the problem that the baffle is not tightly sealed (no matter how high-end the hood is), there will be the problem of odor return from the range hood. . The range hood check valves provided by different brands or models of hoods are likely to be different, and there is no unified industry standard. The flue check valve refers to the check valve installed at the flue mouth. Generally, the builder will equip it when handing over the house. There is a metal baffle with an eccentric shaft inside. This structure is difficult to achieve complete sealing in the reverse direction. The dry check valve mainly consists of a valve body, rocker, valve cover, valve seat, sealing seat, etc. When working, the gas opens the valve cover under a certain pressure, enters the check valve from the air inlet, and flows out from the outlet. , when the air pressure suddenly decreases, the valve cover, driven by the rocker, automatically covers the valve seat to seal, so that the gas will not flow back.
2.
What is the brand of check valve?
1. Submarine
Submarine was founded in 2004 and is headquartered in Beijing. , has been mainly committed to the research, development, design, manufacturing and promotion of new floor drain system solutions and related bathroom products and is highly respected. It is the world's leading supplier of floor drain systems. Numerous bathroom products, including functional faucets, angle valves, water supply hoses, anti-odor sewer pipe series products, flue odor-proof valve series products, and Megu Yuanyang glue products, have been selected by many prestigious buildings, including the National Stadium. Bird's Nest National Swimming Center Water Cube and Shanghai World Expo venues, etc.
2. Laiershidan
Laiershidan was founded in 2002 and is headquartered in Guangdong. It has been committed to the production and sales of bathroom hardware. It has been awarded the title of "China's Famous Bathroom Brand Product" The green faucet was awarded the honorary title of "Consumer Satisfaction Product of the Year 2009" and one of the top ten brands of sanitary hardware in China, and has more than 60 appearance patents.
The above is the editor’s introduction to what a check valve is and what brand of check valve it is. I hope it can provide a little help for everyone to solve the problem of oil smoke.