Brush seals are compliant, non-contacting or lightly contacting sealing elements used to limit leakage across pressure differentials at rotating interfaces, particularly in gas turbine engines at compressor and turbine stages. They comprise densely packed metallic bristles — typically cobalt-chromium or Haynes alloy wire — brazed or welded into a backing plate and front plate assembly, accommodating rotor excursions whilst maintaining controlled clearance.
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Sponsorship of the Seals & Sealing sector is currently available. See our advertising pages for details.
Brush Seals suppliers linked to most aircraft programs in our database.
Sectors serving Seals & Sealing companies:
Non-metal Materials •
Plastics •
Metals •
Composite Materials •
Chemicals •
Forming Processes •
Metal Processing & Heat Treatment •
Adhesives •
Machining & Metal Removal •
Processes •
Coatings •
Finishing •
Plating
Seals & Sealing
Sectors purchasing from Seals & Sealing companies:
Engine Rotating & Gas-Path Parts •
Turbine Engines •
Airframer •
Fluid Power •
Airframe Assemblies •
Actuation •
Valves •
Power Transmission •
Fuel Systems •
Landing Assemblies •
Pumps •
Auxiliary Power •
Oxygen Systems & Equipment •
Environmental Systems •
Engine Accessories & Oil •
Engine Structure & Casings •
Mechanical Hardware
