Donaldson membrane dryers are compact in design and have a low purge-air requirement. Pneumatic Engineering can offer two types including the FRL membrane and VarioDry SPN models. View the full range at Donaldson’s website here.

The FRL membrane compressed air dryers are characterised by their compact design and low purge air requirement. They are easy to install and maintenance free, and no electrical connection is required. Available as standard module or as complete treatment package (Superplus version) consisting of the membrane dryer module, two-stage pre-filtration, activated carbon filter and pressure regulator. Due to the silicone-free design, the FRL membrane dryer are also suitable for painting applications. The FRL range covers the flow rates from 11 to 150 m³/h (6.5 to 88 scfm).

The VarioDry SPN membrane compressed air dryer runs almost noiseless, with no mechanically movable parts and no electrical connection is required. The versatile system is space saving and can be easily installed in various ranges of applications. Using VarioDry SPN Superplus membrane compressed air dryers, the endpoint treatment of compressed air for flow rates from 3 to 63 m³/h is particularly effective. The range is also suitable for mobile use, in explosion protection zones, restricted spaces, as well as installation directly at a workstation due to its robust and noiseless operation. The membrane dryers covers the flow rates from 3 to 63 m³/h (1.76 to 37 scfm).