Membrane Dryers
See All Frequently Asked Questions
What is the function of a membrane dryer?
A Membrane Dryer uses a permeable membrane allowing water vapour to pass through it. Compressed air is restricted from permeating the membrane and therefore, is delivered to the application free of liquid water and vapour.
What is the dew point of a membrane air dryer?
Membrane dryers rely on inlet compressed air and ambient conditions, which dictate the dewpoint of the compressed air exiting the dryer. In a well engineered membrane dryer application, dewpoints as low as minus 40° can be achieved.
What to look for when buying a dryer?
As with most things, we typically get what we pay for. There are low cost offshore dryers in the marketplace, but these often arrive in Ontario unsuitable or certified for use in this province, because TSSA and CRN have requirements for pressure vessels.
Should a Membrane Dryer be installed with a pre-filter?
Yes, absolutely. The Membrane Dryer should be protected by a good quality pre-filter from particulates and oil. Ensure that your pre-filter includes a reliable and robust automatic condensate drain trap.
What is the difference between a membrane dryer and a desiccant dryer?
A membrane dryer does not regenerate itself. It's a single pass design and dewpoints fluctuate when ambient conditions alter. A desiccant dryer with twin towers, will regenerate itself by virtue of timed valves, or pressure dewpoint. The dewpoint is more reliable from a twin tower dryer, which is being serviced correctly.