Over time components wear, which reduces the pressure produced by the compressor to a level below that necessary for the concentrator to operate correctly.  The component that most frequently fails first is the cup on the piston, as it is constantly wearing against the wall of the cylinder.  Cups can be purchased individually for roughly $5 - $7 each.  More extensive overhaul kits include replacement reed valve, cylinder liners and gaskets.  These kits range in price from $40 - $50.

Note - ALL SPEC BELOW ARE FOR 220/230V COMPRESSORS (115V compressors have different performance)

• Max flow 3 cfm / 84.9 l/min

• Max Pressure 30 psi / 2.07 bar

• Max Flow 4.6 cfm / 130 lpm

• Max Pressure 45 psi / 3.1 bar

• Data sheet: https://www.gardnerdenver.com/-/media/files/thomas/product-downloads/wobl-piston-pumps-and-compressors/2660-series.pdf

• Max Flow 3.1 cfm / 89 lpm

• Max Pressure 25 psi / 1.7 bar

• Stroke 0.440 Inches / 11.176 mm

• Data sheet: http://www.shftpumps.com/thomas/ybs/2660_2680.pdf

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Data sheet: <Waiting for link from manufacturer>

Max Flow 3.3 cfm / 94 lpm

Max Pressure 73 psi / 5 bar

Data sheet: http://www.gseint.com/wp-content/uploads/2020/12/ZW280-product-sheet-20201208.pdf

Max Flow 3.6 cfm / 102 lpm

Max Pressure 102 psi / 7 bar

Data sheet: http://www.gseint.com/wp-content/uploads/2020/12/ZW370-Product-sheet-20201208.pdf

Max Flow 4.94 cfm / 140 lpm

Max Pressure 44 psi / 3 bar

Data sheet: http://www.gseint.com/wp-content/uploads/2019/05/ZW400-3rd-Gen-Product-sheet-20210210.pdf