Material Drying
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Oil and water in compressed air for PET bottle blowing
Problem Phenomenon
The compressed air for PET bottle blowing contains oil and water, and oil spots and water stains appear on the inner wall of blown bottles.
Cause Analysis
The air compressor oil-gas separator fails or has insufficient efficiency; the compressed air dryer performance is substandard; condensed water accumulates in the pipelines.
Solution
Regularly replace oil-gas separator filter elements; install and upgrade the drying and filtering system; install drain valves at pipeline low points; use oil-free compressors.
Key Takeaway
The quality of compressed air for PET bottle blowing directly affects bottle interior cleanliness.
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