1.Breathing valve principle

The internal structure of the breathing valve is essentially a combination of a pressure valve disc (that is, an exhalation valve) and a vacuum valve disc (that is, an inhalation valve). The pressure valve disc and the vacuum valve disc can be arranged side by side or overlapped. layout.

2.Noise problem

There will be a sound when the valve disc of the breathing valve falls into contact with the valve seat, but if the breathing valve keeps shaking, the possible problems are:

1. Valve selection problem

If the caliber of the breathing valve is selected to be small, the discharge volume after the breathing valve is opened is not enough to meet the pressure balance requirements in the system immediately, and the frequent opening and resealing of the breathing valve will produce rapid collision sound, tremor sound, and chatter phenomenon. For example, the kettle that boils water at home, when the water is boiling, the lid of the kettle keeps opening and returning to the seat.

   2. If it is a spring type, is there a problem with the spring?

   3. The volatile storage tank is not filled with nitrogen, and the pressure rises due to the volatilization of the medium.