text.skipToContent text.skipToNavigation
Swagelok Tube Fittings

Swagelok® Tube Fittings and Adapters

Swagelok tube fittings deliver a leak-tight, gas-tight seal that is resistant to vibration fatigue, even in harsh environments or stressful applications. They withstand high pressures and temperature extremes and are easy to install, disassemble, and reassemble in a variety of situations. Swagelok tube fittings can be used on thick- or thin-walled, hard or soft tubing and resist the effects of pressure and thermal cycling.

Tube Fittings and Adapters Catalogs

Locate detailed product information, including materials of construction, pressure and temperature ratings, options, and accessories.

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.

Using a gap inspection gauge to confirm proper istallation of a Swagelok tube fitting
Swagelok Tube Fitting Installation

This video demonstrates the integral steps for installing Swagelok tube fittings, which have earned a global reputation for consistency, quality, and reliability.

Swagelok tube fittings

Tube Fittings and Adapters up to 11 000 psi (757 bar)

The robust tube grip of the Swagelok tube fitting with its patented, two-ferrule technology is resistant to vibration fatigue and withstands high pressures and temperature extremes.

In the two-ferrule, mechanical grip design, the two ferrules separate sealing and tube gripping functions with each ferrule optimized for its function. The front ferrule creates a seal against the fitting body and on the tubing outside diameter. As the nut is turned, the back ferrule axially advances the front ferrule and radially applies an effective tube grip.

An 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.