P trap under vacuum
P trap under vacuum
(OP)
I am working on a project right now involving a mist collector and a p trap. The blower on the mist collector is pulling 20" vacuum. The problem lies in this p trap setup. My co-workers and I cannot come to a consensus as to what the proper proportions should be to prevent the drain from backing up and spilling inside. At current the theory is that the difference between the inlet and outlet is 110% of the vacuum level, and that the height of the upstroke should also be 110-120% of the vacuum level. My personal thoughts have been that the 20" of vacuum is displacement and that over 20" on the inlet side should hold regardless of how much fluid is in a zero state.
Any help is appreciated, I'm tired of this debate...
Any help is appreciated, I'm tired of this debate...





RE: P trap under vacuum
If it is 20" of mercury, you better get your Fluids text book and start reading up.
rmw
RE: P trap under vacuum
So the 20" needs to be above where the water would be at atmophere correct? Does it matter how much is stored in the bottom of the U portion assuming that there is another 22" to go vertically?
RE: P trap under vacuum
rmw
RE: P trap under vacuum