• Description :
    Pre-insulated, pre-stressed bellows are used to absorb the thermal expansions of the steel pipe and therefore keep the mechanical stresses on the steel pipe (and due to temperature variations) within permissible limits. Compensators are supplied prefabricated in the factory, ready for installation.
    The ends of the main pipe are not insulated over a length of 150 mm. Welds on the HDPE sheath are made in the factory. Nordic or DELFIN alarm wires can be inserted into the insulation upon request.
    With the standard wall thicknesses proposed, our bellows have a nominal pressure resistance of NP 16. Class NP 25 bellows can be manufactured on demand.

  • Operating temperature: max. +148 °C continuous
  • Operating pressure: NP 16
  • Diameters: ND 20 to 1000
  • Compliance: Standard EN 448


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PU130 Catalog
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PU130 Laying manual
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