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PU Submarine Cable Protection
December 25, 2025
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Brief: Follow the narrative to see how small design choices affect everyday performance. In this video, we demonstrate the installation and function of the Casting Polyurethane Bend Restrictor for submarine cable protection systems. You'll see how its modular design and snap-ring connection ensure reliable overbending protection in demanding marine environments, safeguarding cable integrity for offshore wind power applications.
Related Product Features:
  • Provides essential overbending protection for submarine cables at offshore wind power I-pipe and J-tube installations.
  • Features a semi-annular female and male end design with a snap ring and groove connection system for secure assembly.
  • Constructed from premium polyurethane material offering excellent elasticity and corrosion resistance.
  • Includes auxiliary pipeline and riser column channels for integrated installation on buoyancy modules.
  • Offers high tensile strength (≥45MPa) and a lateral pressure capacity of 8 tons for robust performance.
  • Designed with a modular bite structure and Harvard structure module for adjustable length and easier handling.
  • Resistant to water, oil, grease, and hydrolysis, with superior electrical insulating properties.
  • Ensures long-term durability with a design life exceeding 50 years in harsh submarine environments.
FAQs:
  • What is the primary application of this polyurethane bend restrictor?
    It is designed for submarine cable protection systems, specifically installed at the lower ports of offshore wind power I-pipes and J-tubes, and on buoyancy modules outside marine riser columns to prevent overbending.
  • How does the connection system of the bend restrictor work?
    The restrictor features semi-annular female and male ends with an integrated snap groove on the female end and a corresponding snap ring on the male end, creating a secure and reliable connection that is easy to assemble.
  • What are the key material advantages for use in marine environments?
    The premium polyurethane material provides excellent resistance to water, oil, grease, hydrolysis, and corrosion. It has high tensile strength, does not add significant underwater weight, and protects cables from anchor shocks and abrasion without damaging the cable cover.
  • What is the typical delivery time and packaging for this product?
    Delivery is typically 10 working days for 200 pieces, and the product is packed in wooden cases to ensure safe transportation.
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