Donaldson Australasia’s  self-cleaning systems are designed to help turbines and generators operate in several places like dusty deserts, urban/factory areas, on the coast or in frosty conditions.

Because they are self-cleaning, the self-cleaning systems require little maintenance between filter change-outs.

Several models are available to suit different applications:

GDX for large turbines

Suitable predominantly for original equipment manufacturers, Donaldson Australasia’s GDX is an advanced, pulse cleaning inlet air filter system in a compact, modular design.

The system uses a layered downward airflow design over banks of filter cartridge pairs (mounted horizontally) made with high-efficiency spider-web filter media.

GDX provides maximum convenience and filtration efficiency for turbines with operating airflow of 2237 to 33557 m3/min.

Design supports many inlet enhancements such as moisture separators, acoustic hoods, evaporative cooler or chiller coils, and anti-icing systems.

GDX for smaller turbines

Sized for turbines requiring airflow less than 2237 m3/min, this GDX design has all the same convenience and high-performance characteristics of its larger brother but fewer filter cartridges.


The Donaldson TTD system is the original pulse cleaning air filter system for gas turbine and generator ventilation applications. Filter cartridges are mounted vertically.

It is available with one level of filter elements for airflow up to 2237 m3/min or with several filter levels to accommodate larger airflow.