Sealless compressors avoid process gas contamination
Sundyne
This company’s PPI Diaphragm Compressors are hermetically sealed, positive-displacement machines that completely isolate lubricants from the process gas. This sealless design (which is devoid of any dynamic seals) are designed for applications that require leak-free, contamination-free operation. One specific unit, the Sundyne Series 7L Diaphragm Compressor (photo), is available in single- and two-stage configurations. This compressor has a maximum working pressure of 6,250 psi, with a maximum motor size of 200 hp and 149 kW.With a maximum displacement of 110.9 ft3/min, the compressor has a maximum speed range of 250 to 350 rpm, and a maximum discharge temperature of 450°F (232°C). All Sundyne PPI diaphragm compressors can be custom packaged for specific applictions requiring API-618 standards.— Sundyne, Arvada, Colo.