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The Series 4L Diaphragm Compressors for pressures up to 16,750 psi

Designed for processes engineers requiring reliable operation in the full range of high pressure services

The PPI Sealless Series 4L Diaphragm Compressor is for pressures up to 16,750 psi and is a highly reliable and robust design available in several sub-series models.

  • 4000 Single-Stage
  • 4X000 Single-Stage
  • 4L Two-Stage
  • 4LX Two-Stage



  •  Petrochemical
  •  Specialty Gas
  •  Energy
  •  R&D


Series 4L

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