Designed for processes engineers requiring reliable operation in the full range of high pressure services The PPI Sealless Series 7L Diaphragm Compressor is for pressures up to 6,250 psig and is available in single and two-stage configurations. Sub-series models are as follow: 5,000, Single-Stage 5L/H, Two-Stage 7000, Single-Stage 7L/H, Two-Stage 9000, Single-Stage 9L/H, Two-Stage MARKETS Petrochemical Specialty Gas Energy Silicon Manufacturing Partner Locator