Protecting your assets
The SubseaDesign Weak Links are designed to accept internal design pressure in combination with external specified bending moment. At specified load, the Weak Link releases. The Weak Link is easily tailored to your specific applications.
features and benefits
- No mechanical devices such as shear pins in combination with seals
- Designed to accept internal design pressure in combination with external specified bending moment
- Pure material rupture at specified capacity
- Strong enough for operation and installation loads and weak enough to protect the well assets
- Easily tailormade to specific applications
product verification
- Two different materials are used in tests, AISI 4145 and Inconel 718
- Elastic plastic material curve established by using test results
- Analyses carried out
- Testing carried out with good correlation between analyses and test results
how it works
An example of use of the weak link is a recent delivery to a well intervention system. The weak link is mounted between the hose and the well access system. In the case of vessel drift-off or extreme weather conditions the weak link will break before any high loads are transferred to the well system.
View 1
View 2
Illustration of intervention hose with weak link during testing prior to delivery
tested to failure
Technical data:
| Design code | ISO 13628/7 |
| Size, internal diameter | 50-125 mm |
| Length of unit with ID= 101,5 mm ID | 235 mm |
| Minimum wall thickness ID= 101,5 mm | 9,1 mm |
| Design over pressure | 690 bar |
| Material for 690 bar and ID= 100 | Inconel 718 |
| Coating | Typical Norsok system 7, or as required |
DOWNLOADS:
Document | Download link |
|---|---|
Product datasheet | click here |
