Sigma has supplied engine pipe assemblies to the power & systems market for over 40 years. Our significant experience has also enabled us to support well-known civil and military engine programmes.

We supply all types of simple and complex pipes, such as synchronisation tubes, TRAS pipes, fuel and hydraulic pipes, as well as machined end fittings for pipe assemblies. End fittings for engine pipe assemblies are manually or automatically TIG welded, or torch brazed and inspected using our in-house Nadcap approved, x-ray and non-destructive testing facilities.


  • Anti-ice Tubes
  • Fuel Pipes
  • HIPPAG Pipes
  • Hydraulic Pipes
  • Landing Gear
  • Pneumatic Pipes
  • Synchronisation Tubes
  • TRAS (Thrust Reverser Actuation System) Pipes
  • Water & Waste Pipes
  • Pipe Assemblies
  • Pipe Assemblies
  • Pipe Assemblies

Our extensive in-house machining facilities in the UK and China supply most of our end fittings. Alongside this, our capabilities in design for manufacture and calibration of assembly and inspection fixtures enable us to respond quickly to customer needs.


  • CMM, AICON Lightbox & Laser Scanner
  • Small to Large Bore Bending
  • Induction Brazing
  • Torch Brazing
  • Manual TIG Welding
  • Orbital Welding
  • Robotic Welding
  • Rapid New Product Introduction Processes
  • Wire EDM (Electrical Discharge Machining)
Pipe Assemblies

Similarly, our manufacturing abilities support the demanding medium-to-high pressure engine fluid systems for the transfer of oil, fuel and air by supplying pipe assemblies with 1D bends and diameters ranging from 4mm to 75mm. We also use a range of high-performance materials, including stainless steel, aluminium, titanium, Nimonic and Inconel for applications in high-temperature environments.

Contact Sigma

For more information or to find out how Sigma can work with you to meet your engine pipe & tube requirements, please contact our sales team.