

Blowers & Compressors
Diaphragm Compressors
Sundyne's PPI diaphragm compressors provide contaminant-free gas compression through a leak-tight, static-sealed mechanism that requires no purging or venting.
- High Durability
- Easy Maintenance
- Long Service Life
Product Overview
Leak-Free for Critical Gases PPI Diaphragm Compressors
Sundyne's PPI diaphragm compressors provide contaminant-free gas compression through a leak-tight, static-sealed mechanism that requires no purging or venting. A set of metallic diaphragms isolates the process medium from the piston and piston rings, completely eliminating the risk of cross-contamination. Offering zero leakage to atmosphere, Sundyne's PPI compressors are an ideal solution for the safe handling of ultra-pure, corrosive and volatile gases.
All models can be built to meet API 618 standards where applicable to diaphragm compressors. These machines are available in a range of flexible configurations and sizes, making them easy to customize for a wide variety of applications in hydrogen processing, petrochemical, refining, electronic gas, specialty gas and polysilicon production industries.
| 2000 Series | Max. 15,000 psi, 7.1 ft³/min, 15 hp motor, 1-2 stages |
|---|---|
| 4000 Series | Max. 16,750 psi, 45.9 ft³/min, 40 hp motor, 1-2 stages |
| 7000 Series | Max. 6,250 psi, 110.9 ft³/min, 200 hp motor, 1-2 stages |
| 9000 Series | Max. 5,000 psi, 146.6 ft³/min, 250 hp motor, single stage |

Common PPI Compressor Applications
- Hydrogen
- Fluorine
- Oxidizers
- Hazardous gases
- Corrosive gases



