Pressure-Balanced Breakaway Joint 
The Pressure-Balanced Breakaway Joint (PBBJ) is a connector that separates if an externally applied tension load exceeds a preset value. Separation of the PBBJ at the predetermined load is independent of the pipeline internal pressure or external water depth pressure.
The intentional separation of the joint prevents overloading and costly damage to structures to which the pipeline is attached as well as protecting the pipe itself. Structures such as platforms, risers, offshore tanker loading installations, subsea production systems and lateral pipeline tie-ins are protected from loads often caused by anchor drags, mud slides, iceberg scouring and violent sea states during hurricanes.
PBBJ Design Features
- Completely factory assembled and tested with preset separation loads up to the values tabulated.
- Separation load can be easily changed by an Oceaneering qualified technician anytime prior to installation without disassembly of any pressure containing component.
- May be refurbished by Oceaneering after separation.
- A split Locking Ring temporarily prevents installation loads from separating the PBBJ during pipe lay.
- Available with RTJ flanged ends and with one or both upstream and downstream check valves.
- Dual Viton seals at each point of pressure containment.
- Externally coated with 3-part marine epoxy.
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