Polyimide hoses

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Properties

Polyimide-based hoses offer properties that are far superior to those of
conventional thermoplastics:

  • Temperature resistance: Continuous temperature 240°C, short-term up to 400°C.
  • Resistant to radiation, solvents, acids, oil and ultra-low temperatures (cryogens).
  • Possibility of lubricating coating inside and outside.
  • Medical Grade and Industrial Grade.
  • Diameter up to 50.8 mm possible

Polyimide hoses are manufactured using dip coating. The wall thickness is determined by the number of dips. Due to the process, endless hoses cannot be produced, only piece lengths.

Art.-Nr.

Technical data

Dielectric strength 134 kV/mm minimum
Temperature resistance at 20,000 h 240°C
Short term 400°C minimum
Tensile strength 138 N/mm2
Ultimate tensile strength @ 23°C 230 N/mm2
Hoop stress 76 N/mm2Minimum
Compressive strength (Hoop stress x wall thickness) / outer radius
Chemical resistance Excellent against most solvents and solutions
Radiation resistance 3.0 x 109 Gamma Dose Gy
Thermal conductivity coefficient 35.0 x 10-5Cal/sec/cm2/°C/cm
Coefficient of thermal expansion 4.0 x 10-5/°C
Elongation at break 50% nominal
Dielectric constant 3.4
Melting point None
Density at room temperature 1.42 g/cm3

 

Dimensions

Small diameters:

  • From 0.127 mm to 2.3 mm with the thinnest wall thicknesses.
  • Cutting in short lengths from 0.5 mm and tolerance of ±0.025 mm.

Large diameters:

  • Medical grade up to 6.35 mm
  • Industrial grade up to 50.8 mm
  • Lengths up to 1.3 m.
  • Tight tolerances.
  • Thin wall thicknesses from 0.0127 mm to 0.508 mm
  • Low concentricity rates.

Colours

Natural (amber), black, dark red, purple, green.

Delivery forms

  • Pieces up to 1.32 m long.
  • Cut to length (for small diameters with a tolerance of ±0.025 mm).

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