Adsorption dryers with flowrates from 6.00 to 31.43 m3/min

GDX NS Series is the best classic models

Compressed air purification must deliver uncompromising performance and reliability whilst providing the right balance of air quality with lowest cost of operation.

Benefits - get more for your money:

• Guaranteed performance - Gardner Denver dryers have been 100% function and performance tested at the factory to ensure the highest standard of performance, delivering compressed air purity in accordance with ISO8573-1.2010, Class 2 dirt (1 micron) and Class 2 water (-40°C pressure dew point).
• Reliable operation - high efficiency moisture removal and reliable operation with PLC controlled solenoid valves; integral volumetric flow limiter prevents overflow ensuring consistent dew point performance.
• Quiet depressurisation - unique exhaust air silencers significantly reduce noise levels.
• Energy saving design as standard - energy saving dew point monitoring can save up to 60% during reduced inlet moisture loading.
• PLC controls and digital display - a clear digital display provides a full view of PLC operation and monitoring data.
• High quality construction - 100% leak, function and dew point performance tested.
• Easy to install space saving design - the compact design allows installation in spaces too small for a traditional dryer easy to maintain; convenient service kits for easy and efficient maintenance.

GDX NS Series in detail - totally dry and clean air

Combined desiccant & after filter column
High density filled desiccant columns provide maximum adsorption capacity. Built in after filter ensures reliable downstream air quality

PLC controlled operation
The dryer is operated by a robust and reliable PLC control system, offering valuable features including ‘power on’,’hours run’ and service required indicators. Memory retention built into the PLC enables the controller to pick up where it left off in the drying cycle, ensuring consistently clean and dry air downstream. Compressor synchronisation is a standard energy saving feature which starts and stops the dryer with a signal from the compressor or point-of-use equipment to eliminate purge loss when drying is not required.

Dew point control as standard
With this option, a dew point sensor is incorporated into the dryer providing the ultimate in energy savings. The outlet dew point is constantly monitored allowing the cycle time to be adjusted depending on the actual moisture load saving valuable purge air. Dew point is conveniently displayed on the PLC. The -S option reduces valve actuation, increasing service life.

Optimum dew point performance
Dryers are provided as a standard set for a -40°C dew point. Optional dew points from -20°C to -70°C are available.

Constant flow and pressure
Pressure is equalised before switching columns to ensure uninterrupted compressed air and consistent air pressure. Equalisation also ensures long desiccant life due to minimised desiccant attrition.

Two stage maintenance free silencer
Exhaust air is directed into easily maintained silencers behind the lower manifold. The air is then directed under the dryer away from operators and traffic lanes in the compressor room.

Maximum corrosion protection
High tensile aluminium columns are corrosion protected then externally powder coated to provide maximum protection for corrosive environments.