What Is A Breathing Valve ? How Does The Valve Work.
Jan 26, 2024| the breathing valve is a product that maintains the air pressure balance of the storage tank and reduces the volatilization of the medium. It generally refers to a valve that not only ensures that the storage tank space is isolated from the atmosphere within a certain pressure range, but also can communicate with the atmosphere when exceeding or below this pressure range.
The role of the breathing valve is to prevent the tank from being damaged due to over pressure or vacuum, and at the same time reduce the evaporation loss of the storage liquid. It is mainly composed of a seat, a valve cover, a protective cover and two groups of opening and closing devices controlled by vacuum and pressure. The opening and closing device comprises a valve disc, a guide rod, a spring, a spring seat and a sealing ring, etc.
The working principle of the breathing valve is that when the pressure in the tank reaches the rated positive exhaled pressure, the pressure valve flap is opened and the steam in the tank is discharged; When the vacuum degree in the tank reaches the rated suction negative pressure, the vacuum valve flap opens and the air enters.
The above is the relevant introduction of the breathing valve, I hope it will be helpful to you