What principle does the breathing valve work on, and what are its components?
Apr 30, 2024| What principle does the breathing valve work on, and what are its components?
Breathing valve is a common mechanical device used to control the flow direction of fluid or gas in pipelines. It is composed of valve body, valve core, spring and seals. The working principle of the breathing valve is based on the effect of pressure difference. When the pressure difference reaches a certain level, the valve core will be opened or closed by the pressure.
1. Working principle
The working principle of the breathing valve: When the pressure inside the pipeline is greater than the pressure of the external environment, the valve core will be closed by the pressure to prevent the backflow of fluid or gas; when the pressure inside the pipeline is less than the pressure of the local environment, the valve core will close. Will be opened by the pressure of the external environment, allowing the flow of fluid or gas.
2. Structural composition
Breathing valves generally consist of valve body, valve core, spring and seals.
Valve body: The valve body of the breathing valve is made of metal material and has certain strength and corrosion resistance to ensure the service life and reliability of the valve.
Valve core: The valve core is the key component of the breathing valve. It cooperates with the valve seat to realize the switch function. The valve core is made of rubber or metal material and has good sealing and wear resistance.
Spring: The spring is the control element of the breathing valve. It is used to provide the opening and closing force of the valve core, so that the valve core can perform the switching function according to changes in pressure difference.
Seals: The seals of the breathing valve are made of rubber or metal materials. They are mainly used to ensure the sealing performance of the valve and prevent the leakage of fluid or gas.
The above is an introduction to the working principle and structure of the breathing valve. I hope it will be helpful to everyone.