Subsea Connectors

High Pressure Sealing

Underwater Pipeline Connectors

Engineered for the world's most extreme deepwater environments since 1980.

1. Subsea Pipelines

Taper-Lok subsea connectors are built for offshore and deepwater pipeline systems where leaks are not an option. These subsea compact flanges weigh 75% less and occupy 82% less space than ANSI/API flanges, cutting support structure requirements and vessel time.

2. Subsea Risers

Dynamic loading and pressure surges put riser connections under continuous stress. Taper-Lok handles this through a self-energizing metal-to-metal seal that tightens as internal pressure builds. The spherical-nose design tolerates up to 3 degrees of pipe misalignment.

3. Ball Misalignment Flange

Perfect pipe alignment underwater is rarely achievable. The Taper-Lok Ball Misalignment Flange handles up to 10 degrees of angular offset without any drop in pressure rating or structural capacity. Eliminates expensive spool re-fabrication.

4. Swivel Flange

Features a rotating body that lets crews align bolt holes without turning the pipe—a practical advantage in tight subsea spaces. ROV and diver-friendly assembly makes these a go-to for flowline tie-ins.

5. Subsea Spools

Taper-Lok spool assemblies use metal-to-metal sealing to match weld-level integrity at every joint. Matches weld-level integrity at every joint, without the added weight of standard ANSI/API flanged spools.

The Advantage

Why Choose Taper-Lok Subsea?

Taper-Lok subsea compact flanges use a self-energizing design that creates a reliable seal without depending on elastomers or gaskets. Even in misaligned pipe conditions, the metal-to-metal seal holds firm, keeping every joint permanently leak-free.

The CofferLok subsea clamp connector is engineered for fast ROV or diver-assisted make-up, cutting installation time significantly compared to conventional bolted flanges.

[ Product Image Placeholder ]

Common Questions

Subsea FAQ

What are subsea connectors?

Subsea connectors are mechanical joining systems used to connect pipelines, risers, and manifolds in underwater environments. They are designed to maintain a leak-free seal under high pressure and temperature conditions.

Where are they commonly used?

They are used in offshore oil and gas infrastructure including subsea pipeline connectors and risers, wellhead systems, jumper assemblies, and manifolds anywhere a secure, long-term underwater connector solution is required.

How much faster is installation with Taper-Lok?

Taper-Lok subsea compact flanges require fewer bolts and use a self-energizing seal, significantly reducing make-up time underwater. The CofferLok subsea clamp connector is fully compatible with ROV tooling, cutting vessel and rig time.

Are they suitable for long-term subsea use?

Yes. The metal-to-metal seal does not degrade like elastomeric alternatives, maintaining a reliable, leak-free connection for 25 years or more. Qualified to meet API, ASME, and ISO standards.