• A&N Corporation

Vacuum Traps and Filters

In a high vacuum setting, traps and filters may be installed on a vacuum foreline, but each has a different function: A trap is a device that is designed to capture vapors and gases. A filter is a device that is designed to capture or reduce particulates, dust, smoke, and aerosols. A common filter function, for example, is to capture the oil mist (an aerosol) that is discharged from the outlet of an oil-sealed rotary vane mechanical pump.
Selection Criteria:
When selecting a trap or a filter, there are three selection criteria: body style, port terminations, and media.
Body style:
A trap or filter's body style incorporates the geometry of the plumbing (i.e., coaxial, in-line, or right angle), body volume, and, in a few instances, the choice between a sealed and a rechargeable housing. The choice between a coaxial or an in-line body style is based on the geometry of your foreline and your system's available footprint. The decision on body volume