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Mandrel and Collet Connectors

Mandrel and Collet Connectors

Connect in any subsea environment

Improve long-term reliability and safety with greater flexibility. With proven capabilities across the most extreme conditions, our subsea connection systems provide diverless links between subsea wells, manifolds, pipelines, risers, and control umbilicals.

DG and DG-2 mandrel connector system

  • Mandrel connectors resemble collet connectors, but generate the sealing preload with serrated locking dogs instead of collet sleeves. Our range of mandrel products for flowline connections includes the DG and DG-2 connectors. The basic DG connector is a proven design based on integral hydraulics, with operation through an ROV panel and with the seal fixed to the connector. The DG-2 connector is a design evolution of the DG model and accommodates subsea seal replacement. The DG-2 connector can be operated through integral hydraulics and in non-integral mode using an ROV-carried stroking mechanism.

    6" VH collet connection system

    The 6” VH collet connector system is intended primarily for vertical connection of rigid spools, and it is frequently used for flexible flowline and flexible jumper connections. The 6" VH utilizes a mechanical, non-integral collet connector system deployed together with a running tool for actuation. The running tool also provides soft-landing features and additional alignment capacity.

    MCV collet connection system

    The MCV collet connector system is intended primarily for vertical connection of rigid spools, and it is frequently used for flexible flowline and flexible jumper connections and comes in 10" & 12" size range in single and multibore configurations. The MCV's utilizes a mechanical, integral hydraulic collet connector system with operation through an ROV panel and with the seal fixed to the connector. Additional features such as isolation valves and metal swivels can also be provided.

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