Pall PUREair System for Eurocopter EC135/EC635 Helicopters
Fit and Forget Engine Protection
The Eurocopter EC135 is the helicopter of choice for police and Emergency Medical Services (EMS). Their demanding missions mean frequent landings on unprepared grounds - sometimes as many as twenty times a day. Under such conditions, engines can suffer from early erosion damage.EMS helicopters must be ready 24/7 for rapid dispatch to any location. Their missions cannot be delayed or restricted by operational challenges like a blocked filter; they require a maintenance-free engine protection system.
The “fit-and-forget” PUREair System is an ideal solution for such challenging operations. It shields the engine inlet from airborne contamination which results in:
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Part numbers:
- QB0594-03 , QB0664-03 (Black)
- QB0594-04 , QB0664-04 (Silver)
Scavenge system:
- Fan
Certification:
- Eurocopter SB: EC135-71-028 (installation of the PUREair system) Pall SB: SB664-71-03 (introduction of new scavenge fan)
Maintenance
The PUREair is a “fit-and-forget“ system; there are no inlet barrier filters to replace or clean. As with all aircraft equipment, routine visual inspection is recommended.![]() | The Pall PUREair solution is an environmentally friendly alternative to oil-wetted barrier filters. There is no filter replacement and no daily cleaning as with oil-based solutions that are difficult and costly to dispose of. |
For additional information about this product, please contact your local Pall representative.
The EC135 helicopter is fitted with Pall's PUREair system, a “fit-and-forget” solution that extends the erosion life of the engine.
![]() © Eurocopter. Photo credit: Daniel Bujack. |
© Eurocopter. Photo credit: Daniel Bujack. |
© Eurocopter. Photo credit: Daniel Bujack. |
© Eurocopter. Photo credit: Daniel Bujack. |
Agusta Westland
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Bell
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Boeing
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Eurocopter
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HAL
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Mil
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NHI
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Sikorsky
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Air Filters
Engine Air Filtration
Date | Part Number | Description |
1997 | Eurocopter contacted Pall to design an advanced engine intake system with an efficient rotor-mast-seal. | |
2000 | QB0585/586 (PUREair panels only) |
In April 2000, the initial First Article Inspection was held at Pall Aerospace manufacturing, Redruth, UK. |
2001 | QB0594-01 (black) QB0594-02 (silver) |
The Pall PUREair system received certification for both engines (Turbomecca and Pratt & Whitney). These P/N’s are for the full kits; port & starboard panels as well as the rotor mast seal. |
2003 | Pall Aerospace received the permission from Eurocopter to supply the PUREair system for the EC135 with an EASA Form1. | |
2010 | QB0594-01 QB0594-02 |
Eurocopter SB: EC135-71-028 Authorizes Pall to sell the PUREair system directly to EC135/635 operators |
2013 | QB0594-03 QB0594-04 |
Introduction of new composite material plus new scavenge fan with increased time between inspection . |
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