PUREair Protection Against Salt Ingestion

Salt ingestion occurs during maritime operation of helicopters, especially during hover at low levels above sea-waters. During Naval Operation, where helicopters hover for long times at low levels (e.g. for anti-submarine warfare or rescue operations), large quantities of salt spray could be ingested into the engine air intakes.


The long term effect of salt ingestion on the engine is corrosion. In addition, the salt can accumulate on the engine rotating parts which can significantly degrade engine efficiency and performance. This can lead to loss of power, compressor damage and engine imbalance and ultimately result in an engine flame out and an aborted mission.

The Solution

The PUREair system separates a significant amount of salt ingestion, up to 80 % in weight, depending on the design, therefore reducing by a factor of five the quantity of salt spray impacting critical engine parts. However, despite the high salt spray separation efficiency, engines still have to be flushed daily after operation in a marine environment, to avoid corrosion.
The Ultimate in Helicopter Engine Protection
PUREair - The Ultimate in Helicopter Engine Protection
Why PUREair?
Why Choose PUREair?
PUREair systems offers the ultimate in helicopter engine protection
More than fifty different designs have been certified
How Does It Work?
How Does it Work?
Pall PUREair system training program
Design and Testing
Design and Testing
Pall's design and engineering expertise
PUREair Services
PUREair - Repairs and Support Services
Maintenance guidelines and global contact details