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Efficient. Reliable. No welding. 1-48".

No special tools needed for installation or pressuretesting

STATS DNV Type Approved mechanical pipe connectors provide a cold-work solution, removing the associated risks of welding. Quick and efficient to install, this permanent solution significantly reduces maintenance duration and provides a cost-effective solution for piping repair, tie-in or capping of redundant pipework. 

Once installed the integrity of the Connector can be verified with a simple pressure test. An integrated seal verification port provides access to the annulus void between the seals allowing a leak-test to be carried out.

A double block and bleed valve can be fitted to the seal verification port to provide a means of periodically monitoring the integrity of the connection, as part of a routine maintenance or inspection programme. Mechanical connectors have been fitted to a variety of piping systems with a 100% leak-free service history.

Connector Configurations

  • Flanged outlet for connecting plain-end pipe to a pre-flanged termination

  • Coupling for connecting plain-end pipe to plain-end pipe

  • End Cap for capping plain-end redundant pipe work

Connectors are suitable for topside, terminal, FPSO or subsea installation and compatible with processed water, air systems and hydrocarbon applications. Available to suit a wide range of pipe materials including carbon steel, SS316, 22Cr duplex and 6Mo (titan study ongoing).


  • No hot-work required, significantly reducing associated risk and costs

  • Quick to install resulting in timely completion of maintenance activities

  • Easily installed and commissioned with only basic pipework preparation

  • Significantly reduces maintenance costs and duration by eliminating the need for welding, associated equipment and personnel

  • External grip assembly applies even linear and circumferential load around the host pipe, eliminating localised material deformity and localised stress fractures

  • External lock and seal assembly eliminates flow restriction or turbulence

  • Removable and reusable with no damage to existing pipework


  • Simple standard bolted installation, no specialist tools required

  • Maintenance free mechanical pipe connection in accordance with API Specification 6H and certified fire-safe to API 6FA

  • Seal verification port can be fitted with a DBB valve to comply with specific operator inspection requirements

  • Robust construction provides equivalent or greater design criteria than host pipework

  • Coating provided to client specification

  • Fabricated design provides a lightweight unit for topside applications


  • Sizes 1” to 36” as standard, sizes out with this range available on request

  • Maximum working pressure: up to ASME 300# (50 bar / 725 psi) as standard, up to ASME 2500# (256 bar / 3713 psi) available on request*

  • Temperature range: -200°C to 650°C 

  • Dual graphite seal arrangement with verification port to enable pre-commission leak-test/pressuretest

  • Minimum design life 20 years

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