LANKHORST CLEARANCE PROTECTOR
Innovative clearance protection system for subsea cable and pipeline crossings
Safely separating subsea cables and pipelines at crossing points
Lankhorst Clearance Protection is designed to deliver maximum reliability in the most demanding offshore environments, the system prevents contact damage while reducing installation complexity and cost.
- Safe to handle and fast to install
- High-impact and abrasion resistance
- Crossing clearance of 300mm or more, according to DNV standards DNV-ST-F101 and DNV-RP-0360
Operational simplicity and high performance
Our Clearance Protection system is manufactured from high impact resistant polyethylene (PU) or polyethylene (PE) and offers a reliable alternative to traditional methods such as concrete mattresses or rock dumping. (The system is available in a wide range
Why choose Lankhorst Clearance Protection?
High impact- and abrasion resistanceProtects subsea cables and pipelines from rocky seabeds, crossings, and external forces
Safe to handle and fast to installInterlocking half shells provide close fitting protection and ensuring alignment during istallation
Eliminates the need for additional vesselsInstallation integrated into the pipe-lay operations, making an extra vessel unneeded
Wide range of sizingAvailable in a wide range of inside diameters, lengths and clearances.
Excellent project managementDedicated project managers ensure seamless execution, on-time delivery, and project success.
Extensive testing possibilitiesIn-house testing facility, including testing by our stinger roller testing rig and our impact tower
Curious how we can protect your subsea line?
Please contact one of our Regional Business Managers
Lankhorst Clearance Protector design
The Lankhorst Clearance Protection system is made from a high impact resistant, marine-grade polyurethane(PU) or polyethylene (PE) and is designed to provide clearance between two cables or pipelines when they cross each other, as an alternative to concrete mattresses or rock dumping.
The design consists of two cylindrical half-shells that interlock securely around the pipeline or cable and is available in a wide range of diameters, lengths and clearances. The interlocking mechanism not only ensures alignment but also simplifies handling and placement offshore. The strapping system is embedded in design-specific recesses, ensuring smooth outer contours and avoiding interference with surrounding infrastructure. These features contribute to structural integrity, hydrodynamic stability, and ease of inspection during and after installation.
Optimized for installation
The Lankhorst Clearance Protection system is engineered to integrate directly into normal pipe-lay operations. Unlike traditional solutions, it does not require rock dumping or the mobilisation of separate support vessels. Which significantly reduces offshore exposure, installation time, and project cost.
The half shells are light weight, safe to handle and fast to install. To meet the requirements of different offshore applications and environments, the Clearance Protection System has been subjected to extensive testing and trials to ensure optimum performance in the demanding marine environment. (Specific material formulations with custom properties can also be made available. A range of testing can also be carried out at Lankhorst’s in house testing facilities on both the material and also the end product. Demonstration of the bending radius of the product can be executed as required).
Lankhorst Clearance protection projects
Subsea 7 - Equinor Bacalhau
Saipem - Zohr North field Back-up
ABB/Vattenfall -
Kriegers Flak
Kriegers Flak
Curious how we can protect your subsea line?
Please contact one of our Regional Business Managers