High-low temp capability for jet engine seals
A world-class aircraft engine manufacturer required O-ring seals for use in various locations within the transmission system of their prototype jet engine.
Temperatures can reach +330°C and failure of seals could lead to leakage of highly combustible fluids, especially aviation fuel. An elastomer capable of operating within temperature extremes of -45°C to +330°C (-49°F to 626°F) with excellent resistance to oil, fuels and lubricants was required.
PPE’s Perlast® G75B material was supplied and installed over 2 years in a live engine test programme. It was rated to be the highest temperature elastomer and proven to work in highly aggressive aviation media.
A huge reduction in the risk of highly flammable liquid leakage which enabled the continued development of the engine.
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