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FK series medium-pressure tube fitting

Swagelok® Medium-Pressure Tube Fittings (FK Series)

Swagelok FK series medium-pressure fittings have improved fluid connections in tough applications like oil and gas exploration, R&D systems, and the hydrogen market. They offer reliable, leak-tight connections for advanced systems in fluid handling and gas sealing applications.

View All Medium Pressure Tube Fittings

Swagelok® FK series medium-pressure fittings install up to five times faster than cone and thread fittings, reducing installation time, assembly, and maintenance costs. The fittings are vibration-resistant and offer a leak-tight gas seal for applications up to 20 000 psig (1378 bar). Ideal for use in challenging environments where secure, high-pressure connections are critical.

These medium pressure fittings are reliable and efficient, offering robust performance in severe applications while protecting workers and the environment. They meet EC-79 standards for hydrogen applications up to 700 bar (10 150 psig) and feature a preassembled cartridge for easy, accurate installation. The simple two-piece design, with color-coded ferrules, ensures proper orientation and installation using standard tools. The strain-hardened 316 stainless steel body provides a lightweight, space-saving solution. FK series fittings are also available in NACE MR0175/ISO 15156 compliant versions.

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Rohrverschraubungen für mittleren Druck—Kategorien

Aufschraubverschraubungen

Aufschraubverschraubungen

Sorgen Sie mit den Aufschraubverbindungen für die Aufnahme von Anschlüssen mit Außengewinde für sichere Rohrverbindungen.

Ersatzteile und Zubehör

Ersatzteile und Zubehör

Sets mit Muttern und Klemmringen und Messlehren für Rohrverbindungen in Anwendungen mit mittlerem Druck. 

Gerade Einschraubverschraubungen

Gerade Einschraubverschraubungen

Stellen Sie leckagefreie Verbindungen in Instrumentierungssystemen und industriellen Anwendungen mit mittlerem Druck her. 

Gerade Verschraubungen

Gerade Verschraubungen

Einfache Rohrverbindungen mit Winkeln, T-Stücken oder geraden Verschraubungen, erhältlich in Edelstahl 316 für mittleren Druck.

Schottverschraubungen

Schottverschraubungen

Die Schottverbindungen sind speziell für Schlauchdurchführungen ausgelegt und bieten einen zuverlässigen Fluidtransfer durch Platten oder Stahlwände hindurch.

Verschlusskappen und Stopfen

Verschlusskappen und Stopfen

Sorgen Sie mit Verschlusskappen bzw. -stopfen in Anwendungen mit mittlerem Druck für eine optimale Druckabdichtung.

Medium-Pressure Tube Fittings Catalogs

The strain-hardened 316 stainless steel FK fitting bodies are available in straight, elbow, and tee shapes to meet your configuration needs in a lightweight, space-saving design. Find detailed product information, including materials of construction, pressure and temperature ratings, options, accessories, and installation instructions in the product literature provided here.

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

Tube Fittings Comparison (FK Series)

Watch and compare installation of FK series and cone and thread fittings.

Compare the Fittings

Swagelok Resources Curated for You

agi industries
AGI Industries

Read how Swagelok helped AGI Industries achieve leak-free performance at 15 000 psi for 13 500 potential leak points with Swagelok FK series valves and fittings.

hydrogen transportation
Optimizing Component Selection for Hydrogen Fuel Cell Vehicles

Hydrogen transportation depends on reliable component specification and selection.

offshore oil operator working with Swagelok fk tube fittings
Case Study: Offshore Oil Operator

Read how Swagelok helped an offshore oil operator reduce installation labor time and enhance overall performance by changing existing cone and thread connections with Swagelok's FK series fittings.

empa and Swagelok collaborate on hydrogen transportation using fk tube fittings
Empa and Swagelok’s Collaborative Research Fuels Development of Hydrogen Transportation Innovations

The Swiss Federal Laboratories for Materials Science and Technology (Empa) and Swagelok are exploring the viability of hydrogen-based transportation solutions. One recent research breakthrough stemming from our collaboration incorporated Swagelok’s FK series fittings within the Empa hydrogen solution. Using FK series fittings instead of traditional Swagelok tube fittings significantly eased installation, while improving leak-tightness, reliability, and safety.

FK series medium-pressure tube fitting preassembled cartridge

FK Series Medium-Pressure Tube Fittings

From initial construction and commissioning through daily operations and maintenance, there is a tremendous focus on reducing total lifecycle costs. FK series tube fittings can reduce maintenance costs and provide high reliability, reducing system downtime, when proper assembly processes are followed. These fittings can also help mitigate environmental impact via leak reduction as well as improve overall safety by protecting your system against corrosion.

Read about how to build more productive critical fluid systems with FK series fittings

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