How Many Microns Is A Deep Vacuum

A good vacuum rig coupled to a large pump can overpower the dehydration process pulling below 500 but not removing the moisture which simply takes time.

How many microns is a deep vacuum. This is why a lower in the micron vacuum scale equals a better deeper vacuum a higher number equals a worse less deep vacuum. With a vacuum pump connected to both low and high air conditioning system sides pull a deep vacuum for at least 5 45 minutes. Keep it open until you are at 15 000 10 000 microns moisture is what kills the vacuum pump oil. A micron gauge is the only device that accurately reads the vacuum pressure needed for deep vacuum.

Vacuum pumps piston compressor type at best 29 at sea level. The placement of the gauge the size of the hoses and the size of the pump are all important factors. 1 inch 25400 microns 039 inch 1000 microns 1 millimeter. After the second standing test allow the vacuum pump to run until the system is preferably below 200 microns.

If the micron level does not rise above 500 microns the evacuation is complete. Pulling below 500 microns and being below 500 microns are two totally different things. It is not until the vacuum has been isolated that we can determine the ultimate level of vacuum. Can t achieve deep vacuum at best 28 of mercury no water boiled.

In the micron vacuum scale we start at 760 000 microns at sea level atmospheric pressure and work down towards a perfect vacuum of 0 microns or 0 hg. Digital micron vacuum gauges a compound gauge only indicates a vacuum is being produced. Many people say pull a vacuum to 500 microns and you re good but when i started studying how vacuum works in a system i realized that there was a lot more involved to get the system to 500 microns or lower and to hold that level. What the heck is a micron.

System holds at 500 microns. A vacuum of about 500 microns or 29 92 hg gauge pressure is needed for removing any moisture that may have entered the system along with the non condensable gases while it was open. With a good pump 50 100 microns is easily achievable isolate the vacuum rig with the core tools and allow the system to stand for 15 to 30 minutes.