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Swagelok Tube Fittings

Swagelok® Tube Fittings and Adapters

The two-ferrule, compression-grip, gaugeable Swagelok tube fitting delivers a consistent, leak-tight seal that is resistant to vibration fatigue, even in harsh environments. They are available in a variety of materials, shapes, and configurations which allow their use in pressures up to 11 000 psi (757 bar) and temperatures up to 1000°F (537°C). Swagelok tube fittings and adapters reduce the risk of dangerous leaks and costly system downtime while being easy to install, disassemble, and reassemble.

One of the advantages of the Swagelok tube fitting is the ease of installation which requires an effort significantly lower than most other tube, pipe, or weld fitting alternatives, reducing installer fatigue. It can be installed using standard tools and has multiple preswaging options for assembly flexibility, such as the gaugeable preswaging tool.

How to Use a Gaugeable Preswaging Tool

The Swagelok tube adapters are designed to complement the Swagelok tube fitting and allow for fitting-to-fitting connections between a Swagelok tube fitting and a variety of other end connection types. They can help eliminate difficult alignment issues and reduce the need to stock special elbows and tees. A similar installation procedure to that of the tube fitting is used, making Swagelok tube adapters easy to install.

How to Assemble Tube Adapters (1″ and Under)

swagelok essentials training

Swagelok Essentials

Swagelok-certified trainers are available to teach courses on topics such as Tube Fitting Installation and Tube Fitting Inspection at locations and times convenient to you.

View Swagelok Essentials

Tube Fittings and Adapters Catalogs

Available in tube sizes from 1/16 to 2 in. and 2 to 50 mm and an array of configurations, Swagelok tube fittings and tube adapters are manufactured in a variety of materials for superior corrosion resistance in a range of applications including chemical processing and sour gas. Find detailed product information, including materials of construction, pressure and temperature ratings, tools and accessories, and installation instructions in the product literature provided here.

Fluid system with leak-tight Swagelok<sup>®</sup> tube fittings

Browse Medium- and High-Pressure Fittings

Looking for fittings that can handle pressures in excess of 11 000 psi? Read about our FK series medium pressure tube fittings rated for applications up to 22 500 psi (1551 bar) and cone and thread fittings rated for applications up to 60 000 psi (4134 bar).

Find Higher Pressure Ratings

Swagelok Resources Curated for You

Threaded Swagelok tube fittings
An Introduction to Fittings: Identifying Thread Size and Pitch

Even the most seasoned professionals can experience difficulty identifying threads. Swagelok product manager Andy Hitchcock explains how to identify thread size and pitch on your fittings using a caliper, pitch gauge and thread identification guide.

Workers on an oil rig
Optimizing Medium-Pressure Oil and Gas Applications with Compression Fittings

For medium-pressure applications in oil and gas topside assets, learn how compression fittings can offer installation speed and performance benefits over traditional cone and thread connections.

A Shenyang Blower Works employee uses a fluid system built with Swagelok components
How Shenyang Blower Works Group Improved Safety and Reliability

Learn how Swagelok Shanghai has helped Shenyang Blower Works Group Corporation achieve consistency, reliability, and cost savings for its customers while improving its own safety and production efficiency.

swagelok tube adapters eliminate issues
How Tube Adapters Can Eliminate Alignment Issues

Tube adapters can help eliminate difficult alignment positions while also reducing inventory. Watch this demonstration of how to use Swagelok® tube adapters to fix alignment problems while delivering a leak-tight seal.

swagelok tube fittings and tube adapters

Since 1947, Swagelok has been the leader in advancing tube fitting technology used in industrial fluid system application across nearly every industry.

Swagelok Founder Explains His Revolutionary Tube Fitting

More than 75 years later, the Swagelok tube fitting, with its unique “hinging-colleting” action, remains trusted to provide lasting, leak-tight service. The grip-type design uses the “hinging and colleting” action to achieve optimal performance in three key areas:

Tube Grip

The hinging and colleting action provides more direct tube contact/gripping support.

Gas Seal

The burnishing/polishing action of the front ferrule creates concentrated zones of contact on the tube and on the body bevel for a stronger seal.

Vibration Resistance

The colleting region better isolates stress risers at the tube grip to resist bending, deflection, and vibration.

swagelok tube fitting design

Swagelok® Tube Fitting Design

The advanced-geometry, hinging-colleting back ferrule design is standard on all 1/4 to 1 in. and 6 to 25 mm Swagelok stainless steel tube fittings to help installers make more consistent, leak-tight tube connections. In these sizes, a patented case hardening process and patented recessed and contoured geometry provide unique engineering to the Swagelok back ferrule. The hinging-colleting back ferrule design expands on the already robust performance of the traditional ferrule design.

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