Accessories
Our accessories are designed to support subsea installation and operational activities by improving load control, safety, and structural performance. They are typically used during installation phases and subsea operations where controlled load management is required.
Spring supports
Spring Supports
Spring supports are used as accessories to improve load management during subsea installation and operation. The primary function of a spring support is to absorb and reduce peak loads, helping to protect connected structures and pipelines from excessive stresses during installation activities.
These supports can also function as a back support for equipment such as Pig Launchers and Receivers (PLRs), providing additional stability and controlled load transfer. Each spring support is tailor-made for the specific structure and operational requirements, taking into account the expected loads, dead weight, and installation conditions.
The spring system can be preset to activate at a defined load level, ensuring that the subsea structure experiences a controlled and gradual load transfer. This improves structural performance and reduces the risk of high peak loads during installation and operation.
Spring supports can be designed for a wide range of payloads and structural applications, making them adaptable to different subsea systems. They can also be adjusted or operated with the assistance of an ROV, allowing for precise subsea control and operational flexibility.
Water dampers
Water dampers
Water dampers are accessories typically used during installation phases to control and reduce the vertical descent speed of subsea structures during lowering operations. When a structure approaches the seabed, the water damper creates hydrodynamic resistance that slows the descent rate from a typical lowering speed of around 0.5 m/s to approximately 0.05 m/s.
By significantly reducing the landing velocity, the impact energy during seabed contact is greatly decreased. Since impact load is proportional to velocity (and kinetic energy to velocity squared), this reduction corresponds to removing more than 90% of the potential impact load during landing.
This controlled deceleration minimizes shock loading on the subsea structure and its supports, improving installation safety and reducing the risk of structural damage or overstressing of components.
All water dampers and related accessories are designed specifically for subsea service. They are provided with appropriate corrosion protection and are compatible with standard offshore handling, including ROV-assisted installation and operation procedures.
