PPL - Duct, Pipe & Cable Protection

PPL - Duct protects pipes and cables from abrasion and impact, both during the laying process and when installed.

Requirements    

Where burial is not possible, the protection of sub sea pipes, flexible flowlines and cables against abrasion and impact has always been a concern for installation contractors and operators alike.

Methods such as rock-dumping and the laying of concrete mattresses offer limited protection and have high project 'out turn' costs, as secondary vessels are usually required.
     

PPL - Duct Solution

(Patent applied for)

    


The most cost effective method is therefore the use of a protective 'sleeving' system that is installed as the pipe/cable is being laid or during the load-out operations. In recognition of this, PPL Marine Products have developed a low-cost, highly effective system called 'PPL-Duct'.

PPL-Duct consists of two cylindrical half-shell mouldings up to 2 metres long (for easy handling) with interlocking dovetailed end profiles. The inside bore of the mouldings are designed to provide a close fit, with just a small clearance that allows for manufacturing tolerances in the flexable pipe/cable.

 The two shells are quickly and easily installed as pairs (femail end out-board) by means of a corrosion resistant banding system. Circumferential grooves on the outside of the mouldings are provided to locate the banding and to provide axial restraint during bending thus reducing moulding slippage during installation. The band groove also mean that the system has a smooth outer profile and will not be subject to snagging during deployment.
     
  Typical Applications  
  • Cable / Pipeline Crossings
  • Platform Vicinity
  • Beach Landing / River Crossings
  • Rocky Out Crops (fibre Optic Cables)
  • Thermal Insulations
  
     
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