53.Twin pipe open fixed point

  • Description :

The twin pipe open fixed point blocks the inner tube(s); however, it does not insulate one section with respect to another but, on the contrary, guarantees continuity of pressure in the sheath. These are intermediate fixed points in the network.

Fixed points in buried networks do not require a concrete structure. The inner pipes are blocked unlike the outer casing which only has very slight displacements. The insulation is systematically designed so that the outer casing temperature does not exceed 50 °C and the resulting low expansion is limited by frictional sources in the ground.
  • Field of use: Industrial and special applications
  • Operating temperature: +600 °C continuous
  • Service pipe diameters: ND 15 to 500
  • Outer casing diameters: ND 150 to 1000
  • Compliance: Standards EN 10216-2, EN10217-1/2, EN10216-5, EN10217-7, DIN1626/2458, DIN30670.
  • Technical evaluation: CSTB No.14/10-1587


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