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FD 90-40-3 C4400

Flat seal 90x40x3 C4400
Product details for

FD 90-40-3 C4400

d
40 mm
D
90 mm
S
3 mm

Characteristics

Application
  • food processing 
  • drinking water supply 
  • chemical industry 
Approval
  • DIN-DVGW approval, BAM-, HTB approved, KTW recommended, WRC approval 
Construction type
  • universal high-pressure seal for a wide range of sectors 
Construction type addition
  • ultra high-performance standard 
Material
  • aramid fibres, bonded with NBR 
Media
  • oil 
  • water 
  • steam 
  • gases 
  • saline solutions 
  • fuels 
  • alcohols 
  • organic and inorganic acids 
  • hydrocarbons 
  • lubricants 
  • refrigerants 
Customs tariff number
  • 40169300 
All characteristics

Product description

Notes
Tolerances:
Longitudinal dimension according to DIN 7715 - Part 5 P2
Thickness according to DIN 7715 - Part 5 P3
Surface seals according to DIN 2690 are only standardized to PN 40 bar.
Description
Technical values for 2 mm thickness:
Compressibility ASTM F36 A = 11 %.
Resilience ASTM F36 A = 55 %.
Pressure creep resistance DIN 52913 = 25 MPA (50 MPA, 16 h / 300 °C).
Creep resistance under load BS 7531 = 23 MPA.
Thinning at 23 °C = 10 %.
Thinning at 300 °C = 22 %.
Leak tightness according to DIN 3535/6 = 0.2 ml/min.
Anti-corrosion aptitude (chloride content soluble) = 150 ppm.
Thickness change ASTM F 146 (Oil JRM 903: 5 h / 23 °C) = 3 %.
Thickness change ASTM F 146 (Fuel B: 5 h / 23 °C) = 5 %.
Density = 1.6 g/cm³.

Product variants

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