Most PET lines take 30–40 bar(g) oil-free air. The package is often a 7–10 bar oil-free screw plus a booster, or a dedicated high-pressure oil-free skid. This desk lists plants that publish those lines. The note is written by CompressorB2B.
What the plant needs that a brochure never asks
- Bottle volume and cavity count
- Working pressure and recovery pressure
- Oil-free class (see ISO 8573-1 Class 0)
- Booster staging vs a single high-pressure skid
- Cooling water, ambient, voltage / frequency
- FOB Shekou or FOB Shanghai, depending on the works
If cavities and recovery are missing, the kW will be wrong. A 40 bar nameplate is not a 40 bar duty if the line recovers at 25 bar.
Guangdong vs East China
Dongguan and Shenzhen plants (PET / oil-free specialists on this desk) commonly quote FOB Shekou. Shanghai and Jiangsu plants quote FOB Shanghai. Name the port. Packing for a high-pressure skid is not the same crate as a 7 bar screw — say so on the RFQ.
Documents
PED / CE for the pressure system, and the oil-free claim, are separate papers. Request the current documents for the quoted pressure system and oil-free configuration.
For a current quotation or application-specific documents, send the duty sheet to the manufacturing plant.