Richmond, KY. Sponsored Topics. Richmond is a city in and the county seat of Madison County, Kentucky, United States. It is named after Richmond, Virginia, and is the home of Eastern Kentucky University. The population of Richmond, Kentucky was 31,364 in 2010.
Micron gauges are used to determine proper levels of vacuum in air conditioning systems prior to charging with refrigerant. Proper degassing and dehydration are critical to proper performance and to assure a long equipment life. The Accutools BluVac and the Thermal analog gauges are two of the best rated and best performing vacuum gauges available for air conditioning and refrigeration vacuum measurement. Tried, Tested and True.
Filter media is sometimes rated in U.S. Mesh instead of microns. This gauge standard is the number of openings per linear inch using standard wire diameters. Wire mesh measures the number of wires (or threads) per linear inch, not the size of the holes between them. As the number of wires per inch goes up, the size of the holes (in microns) goes down. The chart below roughly converts between U.S. Mesh, microns, and fractions of an inch. There is no simple formula to convert between microns and wire mesh because it would have to account for changing wire diameter.