Oil-injected screw compressors

Compared to the previous GA 15-22 range, the GA 15-26 models offer increased performance (Free Air Delivery up by 5%) and lower power consumption (Specific Energy Requirement down by 2%). 

Energy and performance improvements come from the GA’s improved drive train, which features an IE3 motor (NEMA Class 1) and a new, in-house designed compressor element. Atlas Copco says that, compared to belt-driven variants, the gear-driven GA 15-26 offers a 3% increase in efficiency. Reduced pressure drops and improved cooling flow account for a further 2% performance increase, bringing the total Free Air Delivery gain up to 5% on average, across the complete range.

The drive train features a new cooling fan that consumes less power and is quieter than its predecessor. Overall, the Specific Energy Requirement (SER) is improved by 2% on average. All of these new components have reduced the sound level of the compressors to 65 dB(A).