In daily life, flue check valve is a common device used to prevent smoke backflow in the flue. However, sometimes we encounter situations where the check valve cannot be completely sealed, resulting in problems such as oil smoke backflow and kitchen odors. So, how to distinguish the tightness of the flue check valve?
First of all, we need to understand the basic structure and working principle of flue check valves. The flue check valve is usually composed of a valve body, a valve plate, a spring, etc., when the oil smoke passes through the check valve, the valve plate will automatically close under the action of the spring to prevent the oil smoke from entering the flue. If the valve plate cannot be closed tightly, it will lead to problems such as oil smoke backflow and smoke leakage.
In order to distinguish the tightness of the flue check valve, we can take the following methods:
1.Check the cosmetic quality. First of all, observe the appearance quality of the check valve to see if there are obvious scratches, bumps, rust, etc. If these problems are present, the quality of the check valve is not up to par and the sealing performance may be affected.
2.Manual testing. We can manually test the containment performance of the check valve. Close the check valve first, then apply some soapy water around it and observe for air leaks. If there is air leakage, it means that the sealing performance of the check valve is not good.
3.Observe usage. Observe the working condition of the check valve during use to see if there are problems such as oil smoke backflow and smoke leakage. If these problems occur frequently, there may be a problem with the containment performance of the check valve.
In addition to the above methods, we can also use some professional testing tools to test the sealing performance of flue check valves. For example, if a check valve is detected with an air leak detector, an alarm will sound if there is an air leak.
In short, distinguishing the tightness of a flue check valve requires observation and testing from many aspects. In daily life, we can make preliminary judgments through the above methods. If it is found that there is a problem with the sealing performance of the check valve, it is recommended to replace the new check valve in time to ensure the normal use of the kitchen and the health and safety of the family.