The Swagelok B-15M0-9 is part of the gaugeable tube fittings and adapter fittings family, available in tube sizes from 1/16 to 2 in. and 2 to 50 mm. These fittings offer consistent gaugeability upon initial installation, are easy to disconnect and retighten, and provide demonstrated reliability and performance across a wide variety of materials and configurations.

Features

• Live-loaded, two-ferrule design.
• Easy to install.
• No torque is transmitted to tubing during installation.
• Swagelok gap inspection gauge ensures sufficient pull-up upon initial installation.

Two-Ferrule, Mechanical Grip Design

The two ferrules separate sealing and tube gripping functions; each ferrule is optimized for its function.

The front ferrule creates a seal:

• against the fitting body
• on the tubing outside diameter.

As the nut is turned, the back ferrule:

• axially advances the front ferrule
• radially applies an effective tube grip.

Advanced-Geometry, Hinging-Colleting Back Ferrule Design

This 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 a unique engineered advantage to the Swagelok back ferrule, providing:

• excellent gas-tight sealing and tube-gripping action
• easily achieved proper installation
• consistent remakes
• excellent vibration fatigue resistance and tube support
• full compatibility with original Swagelok stainless steel tube fittings of identical sizes.

Performance and Reliability

Swagelok continues to improve the performance and reliability of the tube fitting for use in thousands of diverse applications, addressing critical issues:

Reliability Focus

• Gas-tight seal: Minimizes fugitive emissions and process fluid leakage.
• Vibration (Tube Grip): Case-hardening process and back-ferrule geometry provide excellent vibration fatigue resistance.
• Thermal Shock: Elastic, live-loaded two-ferrule design compensates for changes in temperature during system start-up and shutdown.
• Corrosion: Available in a variety of materials, including optimized 316 stainless steel chemistry with elevated nickel and chromium.

Compliance with Industry Standards

Stainless steel Swagelok tube fittings used with 316 stainless steel and 316 Ti stainless steel alloy tubing have been tested to the requirements of ECE R110 and are available with EC-79 certification.

Tube OD	Wall Thickness
3 to 16 mm	0.7 to 2.5 mm
1/8 to 5/8 in.	0.028 to 0.095 in.

Fittings manufactured from alloy 2507 and 6MO are NORSOK M-630 and M-650 compliant as standard. They also hold third-party approvals from Vd TÜV, DVGW, DNV, ABS, LR, BV, and more.

Intermix/Interchange

Swagelok recommends NO intermix/interchange of Swagelok tube fitting components with other manufacturers' components. Interchanging can result in unpredictable performance and can be dangerous in critical applications.

Materials Standards

Material	Bar Stock	Forgings
316 stainless steel	ASTM A276, ASTM A479, ASME SA479, EN 1.4401	ASTM A182, ASME SA182, EN 1.4401
6-Moly	ASTM A479	ASTM A182
Alloy 400	ASTM B164	ASTM B564, ASME SB564
Alloy 600	ASTM B166, ASME SB166	ASTM B564, ASME SB564
Brass	ASTM B16, ASTM B453	ASTM B283

Processing and Components

Fitting bodies are processed for improved performance (e.g., aluminum is anodized, carbon steel is zinc plated). Over 1 in./25 mm stainless steel fittings use stainless steel ferrules with PFA coating. Applications above 450°F (232°C) require silver-plated front ferrules and uncoated back ferrules.

O-seal fittings include a 70 durometer Buna N O-ring. Other straight-thread fittings with O-rings include a 90 durometer fluorocarbon FKM O-ring.

Pressure Rating Basis

Thread Type (End Connection)	Pressure Rating Basis	Reference Specification
Swagelok Tube Fittings	Rated to the working pressure of tubing	Unified Inch Screw Threads (ASME B1.1)
NPT	ASME B31.3, Process Piping or pressure testing with a 4:1 design factor	ASME B1.20.1, SAE AS71051
ISO/BSP (tapered)	ASME B31.3, Process Piping	ISO 7, BS EN 10226-1, JIS B0203
ISO/BSP (parallel)	ISO 1179-3, ISO 228-1 Threads with Light-Duty Stud Ends	ISO 228, JIS B0202