6 Gaugeable Tube Fittings and Adapter Fittings The Swagelok Tube Fitting Advantage
“Over 10 000 fittings and not a single leak.”
That is the message one customer wanted to share, crediting Swagelok components and tube fittings along with Swagelok distributor support, as having played a major role in completing—and obtaining independent, third-party certification for—two 12 000 ton oil rigs.
And that is part of the ongoing story behind the continuous improvement efforts that Swagelok has initiated and sustained since the development and patent of the original two-ferrule tube fitting more than 50 years ago.
Today, as everyone is being called on to “do more with less” and to recognize value, Swagelok continues to improve the leak-tight design of the tube fitting for use in thousands of diverse applications—including research, analytical and process instrumentation, bioprocessing, oil and gas, power, petrochemical, and semiconductor industries—and addressing such critical issues as:
■ leakage ■ vibration (tube grip) ■ thermal shock ■ compliance with industry standards ■ installation ■ corrosion ■ intermix/interchange.
Leakage
Excellent gas-tight sealing and consistent reassembly help ensure accurate measurements of process parameters—air, steam, fuel, and water—to keep your plant operating efficiently. Moreover, Swagelok tube fittings minimize fugitive emissions, as well as process fluid leakage and operation costs.
From 1999 through 2004, more than 250 000 fittings in gas service at more than 400 different process installations were leak tested with Swagelok Snoop® liquid leak detector. Contact your authorized Swagelok sales and service representative for more information about Swagelok Energy Emissions Surveys or to schedule a survey.
Vibration (Tube Grip)
The patented case-hardening process and back-ferrule geometry provide excellent vibration fatigue resistance and tube support—even in harsh or stressful environments, such as fuel processing or rotary equipment applications.
Swagelok has conducted rotary flex tests, which show that the Swagelok tube fitting with advanced geometry hinging-colleting back ferrule isolates and protects the stress riser that is generated along the tube during
the gripping part of assembly. The colleting portion of the back ferrule allows more material to contact the tube, for additional support. This colleting action enhances gripping performance and provides both direct and axial support to the gripping function. This design minimizes the effects of bending deflection at the point of grip on the tubing.
Contact your authorized Swagelok representative for more information about vibration test reports.
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