Centrisep® Engine Advanced Protection System (EAPS) for Eurocopter SA341 and SA342 Series Helicopters

Improved Engine Protection

A certified upgrade is now available to replace the 30-year-old Centrisep EAPS design. The new and improved unit provides a dramatic increase in dust separation efficiency and hence significantly increases the MTBUR for engine erosion.

The performance enhancements were achieved without any negative effect in terms of weight or power penalty compared to the previous equipment.  In-service experience has demonstrated the superior performance of the Centrisep EAPS over other filtration devices that demand regular maintenance and cleaning.

Pall’s “fit and forget” Centrisep® Engine Advanced Protection System (EAPS) is an ideal solution for challenging environments. The system shields engine inlets from airborne contamination which results in: Safer operation by protecting against FOD, ice, snow, and sand Increased operational availability Protection against engine erosion On the Gazelle helicopter, the unit consists of two halves fitted to the Astazou annular engine air intake.

Credited: Barry Vissers

Part Numbers:

• QB0491

Scavenge System:

• Ejector

Certification:

• Eurocopter approved

Certified for operation in case of inadvertent entry into icing conditions, enabling it to operate without the need for a by-pass door and differential pressure monitoring system.

Maintenance

The Centrisep EAPS 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. In case of damage, please refer to the Component Maintenance Manual available through Pall Aerospace.

The Pall Centrisep EAPS 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, which are difficult and expensive to dispose of.

For additional information about this product, please contact your local Pall representative.

The Gazelle helicopter is fitted with Pall's Centrisep EAPS, a “fit and forget” solution that provides enhanced protection against engine erosion.

Agusta Westland AW109 Power AW109S AW119 AW139	Bell 205 / UH-1 206	Boeing CH-47	Eurocopter AS330, AS332, EC225, EC725, Denel Oryx AS350, EC130, EC550, Z11 EC135 / EC635 SA315, SA316  SA341, SA342  Tiger
HAL Dhruv Advanced Light	Mil Mi 8 Mi 17 Mi 24, Mi 25, Mi 35	NHI NH90	Sikorsky Sea King, S-61 and SH-3

Date	Part Number	Description
1974	QB0125	First equipment developed for Astazou III engine.
1980	QB0126	Developed for the Astazou XIV engine. It is similar to QB0125, but bigger.
1983	QB0281	Designed for the Astazou XIV, but with improved sealing.
1993	QB0491	This upgraded unit delivers higher sand and dust separation efficiency. It is suitable for both the Astazou XIV and the Astazou III engines. It was developed and qualified and is now in service with several forces in the Middle East, North Africa, and Europe.