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This post was last edited by zb030121eric on 2025-3-12 08:51. Is it appropriate to separate liquids of two types in this manner? The flow rate is around 15-20 m3/h. Is there such an exhaust valve? 1. Is there a valve that allows only air to escape while preventing water from exiting? 2. Is it feasible to set up a gas-liquid separation tank in this way? Is there any basis for calculating how large a volume is required? Is a 5-minute dwell time sufficient? 3. What else should be noted for the two separations? Thank you, hero!
Is it air and water, or other gases and liquids?
Although there is a gas-liquid separator, the gas outlet relies on a valve to achieve complete separation of gas and liquid, which seems impossible :)
Air and water, or other liquids
Vapor-liquid separator – you can give it a try; many answers have already been provided above. It seems there’s no way to solve this with valves
There are many exhaust valves on the heating pipes designed for the water supply and drainage system; I’m not sure if they can be used
There is an automatic exhaust function; it’s sufficient to control the pump’s start and stop based on the liquid level
There are water-blocking exhaust valves, but they are all on the circulating water. I wonder if, with yours added, it’s possible for air to be drawn back in
As long as the water doesn’t flow out, the negative pressure created by the pump might cause air to be drawn in; however, there’s no problem with that
I’m afraid that if too much is drawn, it will be full of air and end up in the pump. You can buy it and give it a try; there are drainage and air-blocking valves, which we used in the past with 80-degree circulating hot water