Subsea Innovation have developed a system for protecting subsea tools and templates from potential damage caused by vessel DP run-off (dynamic positioning). The use of a “weak link” has become a client specified requirement on the majority of operations involving template intervention.
The system comprises of a mechanical coupling which can be operated by an ROV to activate an automatic disengagement system.
The Emergency Pull-off Connector (EPC) is designed to be used as a lifting coupling with a SWL of 50Te. However the connector when set into “shear mode” will disconnect at a predetermined load, ie 5Te or what ever is required by the client.
The Emergency Pull-off Connector is made up of the following parts:
- l-off Coupling (male)
- l-off Pin (female)
- l-off Shear pin
- Position 1 › Connect / disconnect (manual topside)
- Position 2 › Lift mode (manual topside)
- Position 3 › Shear mode (performed subsea by ROV)
- Safe Working Load › 50Te (or to suit clients' requirements)
- Design load › 200Te (SWL x SF:4)
- Pull-off load › 5Te (adjustable)
- Weight › 150 kgs (in water)
- Height › 500mm
Standards and regulations
- ISO 9001 Quality Assurance
DNV Rules for Certification of Lifting Appliances