Auxiliary Power Unit (APU)

Flexfab's auxiliary power unit components are designed to meet your pressure, displacement, flame, and installation requirements. Product categories include seals and ducts.



Flexfab ducts are designed to transfer air within the auxiliary power unit system while decoupling forces between components. Flexfab ducts are fire resistant and can be custom engineered to fit into systems with small or limited space.



Inlet Seals & Joints

Flexfab APU inlet seals and joints are used to create seals around pipes and other penetration points through the bulkhead. Flexfab APU components allow the penetrating media to have minimal X/Y/Z movement while maintaining a fireproof and pressurized seal between compartments.

Fuel Shrouds

Flexfab high-temperature lightweight fuel shrouds are a secondary containment system designed to route the inadvertent leaking of fuel from the nozzle array to a safe location. Fuel shrouds mount around the fuel line and nozzle array on the engine and can be taken on and off the engine without disconnecting the fuel delivery system.

Fuel Shroud


For standard sizing, specifications, or more information, contact our Aerospace team