Polyethylene Terephthalate (PET) compressor systems for bottling plants have a history of ages. Started in 1970 with smaller and larger compressor units, they were previously available in types such as air-cooled and water-cooled compressors and boosters. The range of air blow pressure applied to these compressors has changed from 250 to 650 psi and higher. With evolution and trend, to create intricate, high-speed bottle designs, manufacturers are keen to promote energy conservation and reduce blow pressure. Types of blow air compressors Single-Stage Boosters with 10/500 CFM - Uses inlet air depending on pressure from 125-175 psi - Available in both non-lubricated and lubricated configurations - The Service life of 10-15 years Single-Stage Boosters with 600/2,000 CFM - Uses inlet air of 125 psi - Costly than other types - The Service life of 20-30 years Three-Stage Air-cooled piston - Moderately efficient and cost-effective - Available in lubricated conf