A diaphragm compressor is used to transfer, compress and evacuate different types of air, gases and vapors. It is a set of flexible metallic diaphragms that deflect back and forth to compress gas inside the process head of the compressor. diaphragm compressor for process gas is then delivered to the process/application. Unlike traditional piston compressors, a diaphragm compression system does not touch the compressed process media with metal, and therefore does not introduce any contamination to the media being compressed.
Which brand compressor is best?
During the down-stroke of the process head, hydraulic pressure applied to one side of the diaphragm causes it to move downward, altering the volume of the compression chamber and increasing gas pressure. The gas then enters the process head through the inlet valve. On the up-stroke, hydraulic pressure on the other side of the diaphragm helps it to flex upwards and reduce the volume of the compression chamber. The gas is then discharged through the outlet valve.
In order to keep the diaphragms properly positioned during operation, it is important that maintenance of the inlet and outlet valves are done regularly. In addition, a proper cooling system must be installed to ensure that the hydraulic oil does not overheat. This is essential for the longevity of the compressor.
Sundyne’s PPI diaphragm compressors offer zero contamination compression by isolating the pulsating hydraulic oil and the working medium with a set of metallic diaphragms. This eliminates the need to purge or vent the compressor, allowing it to handle ultra-pure and corrosive gases with confidence. This type of diaphragm compressor is ideal for food, pharmaceutical and other industries that have stringent control over raw material pollution.