Break-Away Sub


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

Product verification

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

Wire to hangoff point
at subsea structure
To / from surface HPU
Control line to valve

Technical data

Design codeISO 13628
Prepared for hoses up to 3 inch
570 mm (1/2-inch hydraulic hose)
Overall diameter
240 mm (1/2-inch hydraulic hose)
Design pressure690 bar limited by stab
Material Typical duplex or superduplex
Weight 49 kg (1/2-inch hydraulic hose)
Weight N/A


Download link
Product datasheet
click here