Subsea Mechanical Pipe Connectors

STATS SureConnect™ subsea mechanical Connectors are used for the tie-in, repair or end-capping of pipelines and risers. The slipover design and mechanical locking assembly provides a flanged connection without the need for hyperbaric welding.

36in Subsea Mechanical Connector Installation, Nigeria

The SureConnect features a dual seal design with independent activation of seals and taper locks for efficient installation and seal testing. The SureConnect is designed in accordance with recognised industry standards and guidelines, the Connector components are compatible with a wide range of fluid types and flow conditions. All Connector components are coated to provide protection for use in hostile operating environments.

Subsea Mechanical Pipe Coupling

SureConnect Applications & Configurations

  • Subsea pipeline section repairs
  • Valve Installation
  • Pipeline modification and rerouting
  • Pipeline abandonment

The SureConnect is available in a range of pipe materials including carbon steel, stainless steel, duplex and super duplex.

  • Flanged outlet for connecting plain-end pipe to a pre-flanged termination, mis-alignment flange interface available
  • Coupling for connecting plain-end pipe to plain-end pipe
  • End Cap for capping plain-end redundant pipework



2” to 48”


345bar +


DNV Product Approval

Key features

  • Dual seal design, independent activation of seals and locks
  • Hydrogenated Nitrile Butadiene Rubber (HNBR) seal supplied as standard, alternative sealing material available upon request
  • DNV Type Approved design up to 300# design pressure. Up to 5000# available upon request
  • DNV Pipeline Component Product Certificate, in accordance with DNVGL-SE-0499 available upon request (optional item)
  • Annulus test port allows a pressure test between the two seals
  • Designed for compatibility with a wide range of pipe materials including carbon steel and stainless steel as standard, duplex available on request
  • Materials rated suitable for Sour service
  • Easily installed and commissioned by divers with basic training, ROV or remote tooling installation option is available
  • External grip lock and seal assembly eliminates possible flow disturbance and turbulence
  • Suitable for installation in horizontal, vertical, inclined piping and where space is restricted
  • Forged body or fabricated options available

Applicable Standards & Specifications

  • DNVGL-ST-F101 Submarine Pipeline Systems
  • ASME Boiler and Pressure Vessel Code, SectionVIII, Div 2
  • API 5L, Specification for Line Pipe
  • ASME B16.5, Pipe Flanges and Flanged Fittings
  • ASME B31.8 Gas Transmission and Distribution Systems
  • ASME B31.4 Pipeline Transportation Systems for Liquid Hydrocarbons
  • API 6H, Specification on End Closures, Connectors and Swivels
  • External coated in accordance with Norsok M501 System 7

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