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Premium polyurethane submarine cable protector for offshore wind, oil & gas, and subsea telecom cables. Superior abrasion/impact resistance, corrosion-proof, modular design, 25+ year service life. Custom sizes available.
Product OverviewOur Polyurethane Submarine Cable Protector is a high-performance, marine-engineered solution designed to safeguard subsea power cables, optical fibers, umbilicals, and flowlines in the harshest offshore environments. Manufactured from 100% premium polyether polyurethane elastomer, this protector delivers unmatched durability, flexibility, and resistance to abrasion, impact, saltwater corrosion, and extreme temperatures. Ideal for offshore wind farms, oil & gas platforms, coastal telecom networks, and subsea interconnector projects, it ensures long-term reliability and minimizes maintenance costs for critical subsea infrastructure. |  |
· Marine-Grade Polyurethane: Formulated with PTMEG polyether for 5x better hydrolysis resistance than standard PU; withstands continuous saltwater immersion without performance degradation.
· Exceptional Hardness & Toughness: Shore A 80–95 hardness (Shore D 85 optional); tensile strength ≥45 MPa; tear resistance ≥80 kN/m—resists seabed friction, rock impact, and fishing gear abrasion.
· Wide Temperature Tolerance: Operates reliably from -40°C to +80°C; suitable for deep-sea (-30°C) and tropical surface (70°C) conditions.
· Superior Corrosion Resistance: Inert to saltwater, oil, chemicals, and marine microbes; 25+ year service life (vs. 5–10 years for metal alternatives).
· Split Interlocking Structure: Two-part half-shell design with overlapping, interlocking joints; tool-free installation (no divers required) reduces deployment time by 60% vs. welded metal guards.
· Flexible Sizing: Inner diameter 60 mm – 500 mm; standard lengths 1.5 m/2.0 m; custom lengths/configurations available for 26 kV–272 kV subsea cables.
· Bend Control: Integrated bend restrictor function; minimum bend radius 5–8× pipe diameter—prevents cable overbending and insulation failure in dynamic seabed zones.
· Near-Neutral Buoyancy: Density 1.10–1.17 g/cm³ (close to seawater); adds minimal load to cables, eliminating bending stress from heavy metal protectors.
· Low Maintenance: UV-stabilized, non-rusting, and biofouling-resistant; no painting or cathodic protection required—cuts lifecycle costs by 40%.
· High Impact Absorption: Withstands 3,000 Nm+ lateral impact and 8+ tons compressive load; protects cables from dropped objects, vessel anchors, and tidal currents.
Parameter | Standard Value | Unit | Test Standard |
Material | Polyether polyurethane elastomer | — | API 17L, ISO 10364 |
Hardness | 86 ± 3 (Shore A) / 85 (Shore D) | — | GB/T 2411 |
Density | 1.17 ± 0.05 | g/cm³ | GB/T 1033 |
Tensile Strength (Aged) | ≥25 (31 typical) | MPa | GB/T 1040 |
Tear Strength | ≥80 | kN/m | ASTM D624 |
Abrasion Resistance | ≤50 | mg/1000 cycles | GB/T 1689 |
Operating Temperature | -40 to +80 | °C | Internal test |
Water Absorption | ≤0.5 | % | GB/T 1034 |
Dielectric Strength | ≥20 | kV/mm | GB/T 1408 |
Inner Diameter Range | 60 – 500 | mm | Customizable |
Standard Length | 1.5 / 2.0 | m | Customizable |
Service Life | ≥25 | years | Marine environment |
Impact Resistance | ≥3000 | Nm | Lateral impact test |
Compressive Strength | ≥10 | MPa | Dynamic compression |
· Offshore Wind Farms: Inter-array cables, export cables, and J-tube inlets; protects against seabed abrasion and dynamic bending.
· Oil & Gas: Subsea umbilicals, flowlines, and control cables; resists hydrocarbon exposure and deep-sea pressure.
· Telecom Subsea Cables: Optical fiber cables in coastal and deepwater routes; prevents fishing gear damage and corrosion.
· Coastal & Landing Zones: Shore-end cables, beach crossings, and platform risers; withstands tidal scouring and anchor impact.
· Installation: Align two half-shells around the cable; interlock tabs and secure with stainless steel bands (supplied). No special tools or diving support needed.
· Maintenance: Inspect annually for wear or damage; clean with freshwater if biofouling occurs. No lubrication or corrosion protection required.
· Proven Reliability: Field-proven in 500+ offshore projects worldwide; certified to API 17L, ISO 10364, and IEC 60287.
· Custom Engineering: In-house R&D team provides tailored solutions for unique seabed conditions, cable sizes, and voltage ratings.
· Global Support: Fast delivery (5–7 days for standard orders); 24/7 technical support and on-site installation guidance available.
