Protective tubes, plastic tubes and reinforced tubes

Protective tubes

Protective tubes

Mechanical protection for optical fibers - protective tubes, plastic tubes, reinforced tubes

While optical fibers are fairly durable, they often cannot withstand all possible environmental conditions – especially those in harsh industrial surroundings. This is where additional protection becomes necessary, which prevents the fibers from being damaged or coming into contact with substances that could adversely affect their transmission performance or longevity. Protective tubes are available for various optical fiber assemblies, to protect against damage from longitudinal and transverse forces, and various environmental factors. Plastic tubes and reinforced tubes are used for the direct assembly of multi-fiber loose tube cables with fanout elements for mechanical protection of the fibers. To ensure proper handling of cables during installation and maintenance work, the application of warning marks is very helpful and easily achieved.

Appropriate protection for almost any optical assembly requirement

  • Against damage from longitudinal and transverse forces
  • Against various environmental factors: flame-retardant, rodent protection, limiting the bending radius, vacuum-compatible, high-/low-temperature resistant, with strain relief, non-crushable, and many more
  • For proper handling during installation and maintenance work (e.g. colored markings and warning notices)

Range of products and services

Product portfolio

  • Protective tubes
    • Plastic
    • Metal
    • Metal/plastic
    • Metal/silicone
    • Fabric
  • Plastic tubes and reinforced tubes for cable dividers
  • Maximum assembly length: 200 m (depends on fiber, tube, and cable type)
  • Available only as an assembly option, not available separately

Product properties

Depends on material

  • Flame-retardant
  • Media resistance (oil, water, acids, bases, etc.)
  • High- and/or low-temperature resistant
  • Electrically conductive
  • Abrasion-resistant
  • Limiting bending radiuses
  • Halogen-free
  • Metallic/non-metallic
  • Integrated strain relief
  • Vacuum-compatible
  • Non-crushable
  • Strain-relieved, anti-twist

Ordering options

  • Available only as an assembly option, not available separately
  • Minimal permitted bending radius: depending on the optical fiber used, the deployment of special tubes to limit the bending radius is possible to protect the fibers
  • Lateral compressive strength
  • IP ratings: Various IP ratings (depends on tube type)
  • Marking: tubes can have customer-specific printing
    • printed shrink-fit tubes in signal colors, and variable intervals and lengths
    • direct printing of tubes with warning notices
    • various colors for differentiation
    • Assembly fiber type
    • Connector type

Further information

We offer these items only as part of an assembly. Only in this way can we ensure that the connection technology is compatible with the protection and that the assembly really does perform as specified. Our Product Engineering unit, company-internal assembly, and our long experience as fiber optics experts ensure the compatibility of all components and the fulfilment of all requirements for the final assembled product.


Please contact us for further information. We look forward to your inquiry.

Europe, Africa, and Asia (excl. China)
Phone +49 36764-81-100

Phone +86 519-8988-7783

North and South America
Phone +1 757-258-4805

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