About breather valves
Thread Content
There are six light-transmitting holes in the tank wall; is it still necessary to install a vent valve on the top of the tank? Can’t one breathe through the light hole?
It depends on what medium you are storing in the tank. If the medium stored allows for six holes to be made in the tank wall without the need for a sight glass for sealing, then why use a vent valve?； If six holes have been made in the tank wall and the viewports are sealed, how can he breathe?
1. Check how much pressure the light-transmitting hole can withstand; if it’s high, a breathing valve needs to be installed. 2. If your hole is in communication with the atmosphere, no installation is required. 3. The breather valve is primarily used to protect the gas supply; it releases gas when the pressure exceeds a certain level and shuts off when the pressure falls below that level.
The 3rd floor is incorrect; when the pressure is low, one should inhale rather than close it – if it is closed, the tank will deflate! The breather valve of a storage tank is a safety accessory for pressure vessels, primarily used to balance the pressure inside and outside the tank, and it is essential. Moreover, inhalation is generally much more important than exhalation, because storage tanks can withstand positive pressure better than negative pressure. Moreover, the feed rate to storage tanks is generally slow, resulting in a stable flow rate and thus gentle pressure fluctuations. However, when the amount of initial material is large, the liquid level in the tank drops rapidly, leading to significant pressure fluctuations.
Agree with the third floor – if the light openings don’t have viewports and are in communication with the atmosphere, then there’s no need to install a breathing valve
This question is asked too rudely. It is necessary to clarify the characteristics of your materials. Is it flammable and explosive? Can it react with water, etc.?