I have been looking at Air Compressors, and from 2hp to 10hp they don’t go further than 150psi. Can I modify it to go to 200psi? Perhaps even 250? How do I do this?

Any more detail would be very helpful, Thanks

It is best to not modify an air compressor, as the components used are manufactured to specifications marked on the unit. Most compressors are set to blow the safety valve at 150 PSI, to prevent rupturing of the air tank or air hoses. There are compressors available that will go up to 5000 PSI, but using one without the proper training could result in loss of life or limb.
Is the higher air PRESSURE that you need or more CFM (Cubic Feet Per Minute) to run air tools? If you need more CFM, a two stage compressor with a larger holding tank will work better than more pressure. Most air tools are designed to use with 90 PSI, and varying CFM, depending on what kind of tool it is
If you absolutely require more than 125 PSI, do a search for "high pressure air compressors".

One Response to “Can I modify air compressors to allow higher PSI?”

  • chaosmode1 says:

    It is best to not modify an air compressor, as the components used are manufactured to specifications marked on the unit. Most compressors are set to blow the safety valve at 150 PSI, to prevent rupturing of the air tank or air hoses. There are compressors available that will go up to 5000 PSI, but using one without the proper training could result in loss of life or limb.
    Is the higher air PRESSURE that you need or more CFM (Cubic Feet Per Minute) to run air tools? If you need more CFM, a two stage compressor with a larger holding tank will work better than more pressure. Most air tools are designed to use with 90 PSI, and varying CFM, depending on what kind of tool it is
    If you absolutely require more than 125 PSI, do a search for "high pressure air compressors".
    References :
    I am an ex-USAF equipment mechanic who used to work on the high pressure air compressor units.

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