Answer: It can be determined by observing the pressure differential indicator of the water filter or based on usage time and water quality.
A. Lower B. Higher C. Same as oilless air compressor D. The answer cannot be determined: B Analysis: The lubricating oil from the oil-injected air compressor will be partially mixed into the compressed air, resulting in a high oil content in the compressed air.
Answer: The discharge pressure range varies depending on the specific model, typically suitable for low-pressure applications such as 2-5 bar.
A. 1873 B. 1871 C. 1965 D. Answer in 2017: A. in 1873
A. Compression method B. Cooling method C. Lubricating method D. Control method answer: C analysis: oil-injected air compressors use lubricating oil to cool and lubricate compressor components, while oil-free air compressors do not use lubricating oil. These are two…
A. Higher cost B. Limited scope of application C. Maintaining complex D. Compressed air has high oil content Answer: D analysis: The shortcomings of oil-free air compressors include high cost and limited scope of application, but low maintenance costs, compressed air…