@air
2025-04-15

What are the types of piston air compressors classified according to the exhaust pressure?

  • A. Low pressure air compressor, medium pressure air compressor, high pressure air compressor
  • B. Micro air compressor, small air compressor, medium air compressor
  • C. Silent air compressor, portable air compressor, medical air compressor
  • D. Piston air compressor, screw air compressor, centrifugal air compressor
    Answer: A. Low pressure air compressor, medium pressure air compressor, high pressure air compressor
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@air
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5. The range of flow loss caused by leakage in rotor clearance of screw machines is usually?

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How does the GWL Series compressor achieve oil-free compression?

Answer: It uses water as the lubricant, eliminating the need for oil and reducing the risk of contamination.

@air
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13. Which annex to ISO 1217 does the industry standard for gas production correspond to?

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.

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How is the “oil-free water lubrication” technology applied in this compressor?

Answer: The compressor uses water instead of oil to lubricate the screw elements, eliminating the risk of oil contamination in the compressed air.

@ggao
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How can it be determined whether the water filter of the GWL Series compressor needs to be replaced?

Answer: It can be determined by observing the pressure differential indicator of the water filter or based on usage time and water quality.