Answer: The screw and star wheel are designed for high efficiency and long life, with precise tolerances to ensure smooth operation.
Answer: The biggest difference is that the GWL Series compressor does not use lubricating oil during the compression process, providing oil-free compressed air.
A. Wear of cylinder head and air liner B. Piston and piston rod damage C. Valve assembly failure D. These are all answers: D. all of the above are
A. Higher B. Lower C. Same as oil injection air compressor D. The answer cannot be determined: B Analysis: Oil-free air compressors do not need to replace lubricants and oil filters, so the maintenance cost is low.
Answer: The main features include energy efficiency, low pressure operation, oil-free water lubrication, and high reliability.