Compressor has .......... and flow of 300l/min
That's not quite true. The Chinese have a habit of lying on compressor data plates and customers an equal habit of believing the lie.
What it stated was I believe
capacity 330 litres this is not the same as flow or the other con they also pull by quoting the pressurised volume in the holding tank (tank water capacity volume in Ltrs times x by the pressure in bar)
In fact even worse its the combined pumps displacement and again not the nearly same as flow
Each of the three pumps are double headed and the air displaced on each of the pumps added together
They do not quote the charging rate just the air displaced and this can be massively above and over the charging rate due to compression losses blow by heat and displacement etc of a poorly designed short stroke high RPM single acting piston.
In addition note the data plate has no date of Manufacture another misleading area another trick of the trade for the American importer to add whatever date they like.
Also note the heading on the data plate
Silent Oil Free Air Compressor
Anyone think it's going to be silent. This again is quoted by our friends in China when the compressor tank is full and the compressor pump is switched off.
Again this is fine for a dentist as the dental tools don't use a great amount of air or pressure. So the volume tank filled in a morning before surgery will last most of the day before the compressor kicks back in allowing the claim in the Chinese manner of being silent.
You posed a nice concise detailed question Thank You. The USun is next
