Manufacturer of Y & Z Purge and Pressurization Systems A US Company The AB­-CO PURGE and Pressurization Systems are the most economical and best solution for placing nonclassified and Division 2 equipment in hazardous locations and extending the life of your equipment mounted in the enclosure. The AB­-CO PURGE and Pressurization Systems supply suitable enclosures with the proper amount of inert gas or clean instrument air which removes flammable gases and prevents the accumulation of ignitable dusts within the protective enclosure. The AB-­CO PURGE and Pressurization Systems regulate and monitor the continuous flow of inert gas or clean instrument air into your enclosure which can eliminate problems like heat, moisture, dust and corrosion within your enclosure.