Liquid ring technology has been the most reliable vacuum source for more than 70 years. Airtech designed the 3AL to be environmentally friendly with a unique water recirculation system and maintenance free operation. Air-cooled pumping system are commonly used in the medical, industrial, and food processing industries. The 3AL is a wonderful alternative to oil flooded pumps that require maintenance scheduling, dry vane pumps that cannot handle water vapor or carryover, or non-contact pumps that must be protected from particulates. All 3AL systems are designed in Simplex to Multiplex configurations and can either be tank mounted or stack/base mounted as shown here.