simple, reliable and MORE cost effective
SubseaDesigns Break-Away Sub is a simple, reliable and cost efficient alternative to more complex weak links. Originally designed for protecting hoses during well intervention.
Features and benefits
- Simple design
- 3 off shear pins
- Replace complex weak links for typical control lines
- Build around a single port hot stab
- Easily tailormade to specific applications
- Break away at a certain tension load
- Include protection of hydraulic hose both side of break away sub
Product verification
- Different shear pin material and design depending on required break away load
- Testing carried out with good correlation with calculations
functional testing
how it works
An example of use :
The Break Away Sub is mounted inline a control line of a typical Fail-Safe Closed valve. The Break Away Sub is hung off on the subsea structure with a wire. During drift off the hose will take up a straight-line position from the wire hang-off point to the vessel. At a certain tension, the Break Away Sub will separate without introducing loads to the valve.
Illustration of Break Away Sub used for controlling a Safe Closed Valve for a well intervention task
Technical data
| Design code | ISO 13628 |
| Size | Prepared for hoses up to 3 inch |
| Length | 570 mm (1/2-inch hydraulic hose) |
| Overall diameter | 240 mm (1/2-inch hydraulic hose) |
| Design pressure | 690 bar limited by stab |
| Material | Typical duplex or superduplex |
| Weight | 49 kg (1/2-inch hydraulic hose) |
| Weight | N/A |
