Movement in extreme areas

In aerospace and astronautics, resilience to extreme loads and maximal reliability are an absolute requirement. Examples of this include our flexible elements and pipe systems in the civilian Airbus fleet of aircraft, the Airbus Helicopter H135, Rolls Royce engines or the Ariane 5 and MPCV Orion space programs.

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Aerospace

There is scarcely any field in which the requirements imposed on flexible pipe elements, technology and procedures are higher than in aerospace. Witzenmann offers a broad range of flexible metal hoses, diaphragm bellows, expansion joints and pipe systems.

Aerospace product overview

Possible fields of application for our aerospace products Learn more about our aerospace components

Safety and reliability through a certified quality management system

The goals of our quality strategy are the optimisation of internal processes in production, development and management, the reduction of quality costs and zero-fault quality for our products. We impose the highest standards with regard to product, service and process quality on ourselves in order to be able to guarantee safety and reliability in critical aerospace applications.

For our aerospace activities we are certified in accordance with EN 9100 and, in addition, we have further aerospace and product-specific certifications and individual approvals from our customers.

NADCAP - Welding und Non Destructive Testing
various specific approvals from our customers
Euroqualiflex
EJMA

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Development partner for extremely safe flexible elements and pipe systems

Our certified process helps us find optimal product solutions - from initial idea to economical series production.

As a development partner, together with our customers we come up with initial ideas. Taking into account materials, stress analyses, etc., these are then developed further.

Gimbal Joint CAD Calculation Contentslider

Our solutions are designed in accordance with international standards such as DIN, EN, EJMA, ASME or SAE Aerospace. FEM analyses and material tests are also important in the design and calculation of our flexible elements.

For dynamic and static tests, we have the largest test grounds in the industry. On our test rigs we can go through almost all conditions that occur in practice (different temperatures, pressure and motions).

5-axle and 6-axle test rigs for lifespan tests
hydraulic and electro-dynamic vibration tests
hot and cold test rigs
CT system

In manufacturing, our core competencies include metal-working and welding processes as well as test processes such as X-ray testing and crack penetration testing. Here we benefit from our experience in high-alloy steels such as Inconel 625, titanium or aluminium.

AntiResonance Vibration System Contentslider

Operating efficiency in small and large series:
A modern machine stock with a separate production area only for aerospace as well as access to additional "State of the Art" production capacities in the production association of the Witzenmann Group, allows us to optimally control our production.

1918

first metal bellows delivery for the aerospace industry

Witzenmann centres of expertise: Germany, France, Italy

593 km

height of the orbit of our diaphragm bellows in the Hubble Space Telescope (HST)

Extreme flexibility

Witzenmann Flex components satisfy the strictest safety standards and offer reliable performance, even under extreme loads.

You can find a few examples here:

Flexible Metal Tubes AS1424 for Aerospace Image Text

AS1424-Compliant Flexible Metal Hose Assemblies

On a plane compressed air is, among other things, necessary for the supply of oxygen and for air-conditioning, as well as for de-icing the wings and engines. The hose assemblies used have NADCAP certification for welding and test processes. Additionally, the hoses have various customer-specific approvals.

Learn more about Flexible Fluid Pipe Connections

Aerospace Trim tank metal hose Image Text

Trim Tank Kerosene Lines

The trim tank hoses for Airbus aircraft connect the fixed kerosene lines in the aircraft fuselage with the moveable trim tanks installed in the horizontal stabiliser, where they compensate for relative movements.

Learn more about Flexible Fluid Pipe Connections

Ball and Gimbal Joints

Single-ply or multi-ply bellows feature a round or articulated anchor. They are used in bleed air systems in aircraft turbines or in cryogenic low-temperature fuel lines in launch vehicles.

Learn more about expansion joints for aerospace applications

Tank Ducts

These protective pipes allow secure lead-through of electric cables and pipes through the aircraft tanks. Here, the ducts must be capable of accommodating all of the forces and motions resulting from aircraft manoeuvres and withstanding these stresses over the full service life of the plane.

Learn more about special applications in the aerospace sector