Answer: The compressor uses water instead of oil to lubricate the screw elements, eliminating the risk of oil contamination in the compressed air.
A. Screw B. Piston C. Centrifugal wheel D. Scroll disk answer: B. piston
Answer: It can be determined by observing the pressure differential indicator of the water filter or based on usage time and water quality.
Answer: The main features include energy efficiency, low pressure, oil-free operation, and water lubrication, providing pure compressed air suitable for industries with high air quality requirements.
A. Annex A B. Annex C C. Annex D D. Annex E Answer: B Analysis: The exhaust volume standard corresponds to ISO 1217 Annex C.
A. Annex B B. Annex C C. Annex D D. Annex E Answer: C Analysis: The gas production standard corresponds to ISO 1217 Annex D.