Connectors & Sealing Technologies

Leak-Free ServiceEngineered to Last…

& SubseaTaper-Lok® Offshore

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Taper-Lok® connectors, designed for subsea applications, are supplied with additional features that aid

divers and provide additional diver safety during the installation process. The benefits of these

additional features significantly decrease the time and cost required to install a Taper-Lok®

connection as compared to standard ANSI, RTJ, or API connections.

Taper-Lok® connections are used in:

• Offshore and Subsea

• Top Side

• Spool Tie-ins

• Production Risers

• Manifolds

• Onshore

• Injection Systems

• Flow Lines

• Well Stream Manifolds

• Well Heads

• Pipeline Transmission / Distribution

• Petroleum Refining

• Synthetic Fuels Production

• Numerous Others

Design Flexibility, Leak-Free

AFGlobal has an outstanding record in offshore and subsea applications. Taper-Lok® connections provide unequaled design flexibility and

have been designed in nominal pipe sizes ranging from 0.5” to 82”, with pressures up to 40,000 psi, and temperatures ranging from –350° F to

1,600° F.

Engineered to Last…Leak-Free Service

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Benefits of Using a Taper-Lok® Flange Connection in Your Offshore or Subsea Application:

• Leak-free performances, 100% leak-free sealing technology.

• Taper-Lok® connections are 60% to 70% lighter than the conventional

flanges in most sizes and pressure ratings.

• Axial misalignment capabilities allow for a shorter assembly time of

manifolds, risers and spools.

• Taper-Lok® connections have lower bolt pre-load requirements than

standard connections.

• The Taper-Lok® compact design reduces space and weight.

• The seal ring geometry allows the gasket to be pre-installed on one side of

the flange before deployment.

• Taper-Lok® flanges are designed for external, dynamic and fatigue loads.

• Modifications for external, annulus pressure testing available.

Our clients deserve a service commitment that does not end with installation.

AFGlobal not only provides complete product training, installation and

field repair instructions, but also project management

support, product design and design calculations… all while

guaranteeing leak-free service for the life of your connector.

Some Taper-Lok® connectors have been in operation more than

40 years with combined leak-free service of over 200 million

hours without failure.

AFGlobal Service Commitment

®

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Swivel Flange Assemblies are comprised of a female weld neck flange, seal

ring, male fitting, rotating ring flange and a complete set of studs and nuts

(Figure A, right).

All Taper-Lok® Swivel Flanges 12” in diameter and larger are provided

with ball bearing races machined into the swivel portion of the flange and

loaded with stainless steel bearings. Taper-Lok® Swivel Flanges are easy

to rotate, allowing rotation by hand on large diameter flanges. This saves

divers numerous hours of installation time.

There is no need for a retainer ring to prevent the swivel from sliding onto

the pipe. When the ball bearings are loaded into the race, the swivel is

locked into place by the bearings.

The Misalignment Assembly is comprised of a weld neck flange

with a spherical recess in the face, ball joint, spherical seal ring,

swivel ring flange and a complete set of studs and nuts.

The standard Misalignment Assembly (Figure B, right) allows up to

10-degrees of both axial and angular misalignment of piping.

• The misalignment capability offered by Taper-Lok® connections have proven

invaluable in previous subsea installations where time is at a premium and

the means to facilitate the alignment of an installed pipeline is limited.

• Taper-Lok® compact connections with misalignment capability offers

geometric flexibility during installation.

Misalignment Capability

Swivel Flange Assemblieswith Ball Bearing Races

Ball BearingsThe ball bearings can be viewed in the cut-away section in the diagram above

10° Misalignment Flange

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Misalignment Capability

Swivel Flange Assemblies can be easily rotated saving numerous hours of installation time.

Swivel Flange Assemblies

Misalignment Flange Assemblies

B.

A.

A.

B.

®

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Seal Ring Retainers - Cam-Loks

Taper-Lok® offers a unique Seal Ring Retainer system

for connections that will be installed subsea, for riser

buoyancy systems and for large closures that are

installed in the vertical position.

• The optional Seal Ring Retainer holds the seal

ring loosely in place in the female pocket.

The space between the flanges allows for

the placement of Cam-Loks to retain the wide

area seal ring during positioning and make-up. The

retainers do not interfere with the assembly of the

flanges so there is no need to remove them prior to

assembly.

• To keep the seal ring in place, the female flange

can have retainers installed. The seal ring and

retainer can be installed on the platform or barge prior to the connection being lowered into the sea. This will aid the diver during

assembly.

• Time savings, even 30 minutes, per connection adds up when considering pipe lay barge fees. Any installation time saved will outweigh

the cost of the flange connections.

Special Taper-Lok® Product Features

ANSI Flange Assembly Taper-Lok® Flange Assembly

Compact Design

Taper-Lok® connections are smaller and lighter than

conventional flanges. The Taper-Lok® compact design

reduces space and weight.

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All studs provided with Taper-Lok® subsea connections

are of suitable extra length for 100% tensioning with

standard subsea tensioners.

Nuts are provided with Tommy bar holes as a standard.

The standard stud and nut coating system applied

to Taper-Lok® bolting has a special coating that

protects against corrosion and creates a smooth and

durable surface, making it easier for divers to spin

nuts into position during make-up. This added step

assures years of corrosion protection in the subsea

environment, which low friction coatings alone cannot

offer.

Subsea Studs and Nuts with Tensioner Allowance

The standard stud and nut coating system offers years of corrosion protection in

the subsea environment.

Base Coat: SermagardTop Coat: Xylan Black

Carboline 890

Lifting Eyes

Taper-Lok® subsea connections offer three lifting eyes, making

fabrication and installation easier and safer.

Subsea Coating Application

Taper-Lok® subsea connections are priced to include the application

of Carboline 890 (12 mil dry film thickness/2-3 coats/Safety Yellow)) to

the external surfaces of the connection.

Internal mating surfaces of Swivel Flanges and Misalignment Flanges

are coated with a combination of Sermagard 1105 (0.8-1 mil dry film

thickness) for corrosion protection and top coated with Xylan Black

(0.5-1 mil dry film thickness) for a durable/low friction finish surface. These coatings provide years of corrosion protection in subsea

service.

© 2014 AFGlobal Corporation. All rights reserved.

afglobalcorp.com

Taper-Lok®, an AFGlobal Company

945 Bunker Hill, Suite 500, Houston, TX 77024

Tel: 713-467-3333

Welding Units (UK) Ltd, an AFGlobal Company

Mill Lane, Rainford, Merseyside WA11 8LR England

Tel:+44 (0) 1744 884881

Fax: +44 (0) 1744 883302

Connectors & Sealing Technologies