Gaugeable Alloy 400/R-405 Mechanically Attached Pipe and Tube Fittings
Gaugeable Alloy 400/R-405 Mechanically Attached Pipe and Tube Fittings
Gaugeable Alloy 400/R-405 Mechanically Attached Pipe and Tube Fittings
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■ For use with MIL-T-16420K 70/30 and 90/10 copper-nickel tubing and pipe
■ Available in sizes for 1/8 to 1/2 in. pipe and 1/4 to 1 in. tubing
2 Gaugeable Alloy 400/R-405 Mechanically Attached Pipe and Tube Fittings
Features
Swagelok Company has qualified the Swagelok alloy 400/
R-405 fitting product line in sizes from 1/8 to 1/2 in. pipe
and 1/4 to 1 in. tubing based on ASTM F1387, “Standard
Specification for Performance of Piping and Tubing
Mechanically Attached Fittings” and received U.S. Navy
approval for use on surface ships (see table footnote ➀, below). 2 3 4
This standard establishes the performance characteristics 1
required for mechanically attached fittings (MAF), such as
the Swagelok tube fitting. The Swagelok alloy 400/R-405
mechanically attached pipe and tube fittings are rated for use Materials of Construction
to the working pressures listed in the table below.
Material Specification
The ASTM F1387 qualification tests included:
Component Material Bar Stock Forgings
■ Examination of Specimen ■ Pneumatic Proof
1 Nut
■ Hydrostatic Proof ■ Impulse 2 Back ferrule Alloy 400/ ASTM B164, ASTM B564,
■ Flexure Fatigue ■ Tensile 3 Front ferrule R-405 ASME SB164 ASME SB564
■ Hydrostatic Burst ■ Repeated Assembly 4 Body
■ Rotary Flexure ■ Thermal Cycling Wetted components listed in italics.
■ Elevated Temperature Soak ■ Stress Corrosion For improved performance, fitting components of alloy 400 are coated with a
hydrocarbon film.
■ Torsion ■ Shock
■ Fire ■ Vibration
Suggested Allowable Working Pressures➀ for Swagelok Alloy 400/R-405 Tube Fittings
With Copper-Nickel Alloy 715➁ (70/30) Tubing
Tube Wall Thickness, in.
Outside
0.035 0.049 0.058 0.065 0.072 0.095 0.109 0.120 0.134
Diameter
Fitting in. Working Pressure, psig (bar)
1/8 in. pipe 0.405 — — 3300 (227) — — — — — —
1/4 in. pipe 0.540 — — — 700 (48.2) 3300 (227) — — — —
3/8 in. pipe 0.675 — — — 200 (13.7) 700 (48.2) 3300 (227) — — —
1/2 in. pipe 0.840 — — — — 700 (48.2) — — 3300 (227) —
1/4 in. tube 0.250 3300 (227) — 6000 (413) — — — — — —
3/8 in. tube 0.375 — 3300 (227) — — — — — — —
1/2 in. tube 0.500 — — — 700 (48.2) 3300 (227) — — — —
3/4 in. tube 0.750 — — — — — — 3300 (227) — —
1 in. tube 1.00 — — — — — — — — 3300 (227)
Ordering Information
Select an ordering number.
Ordering Information
Select an ordering number.
Ordering Information
Select an ordering number.
Caps Plugs
Tube Pipe
Tube Pipe If the gauge will not enter If the gauge will enter the
OD Ordering Size Ordering the gap, the fitting is gap, additional tightening
in. Number in. Number sufficiently tightened. is required.
1/4 MS-IG-400 1/8 MS-IG-810
3/8 MS-IG-600 1/4 MS-IG-1010 Always depressurize a system before adjusting the
1/2 MS-IG-810 3/8 MS-IG-1210 tightness of a tube fitting connection.
5/8 MS-IG-1010 1/2 MS-IG-1410
3/4 MS-IG-1210
7/8 MS-IG-1410 Interchangeability
1 MS-IG-1610 Intermixing and interchanging tube fitting components
of different manufacturers can be dangerous. Leak-tight
seals that will withstand high pressure, vibration, vacuum,
Pre-Swaging Tool and temperature changes depend on close tolerances and
consistent, exacting quality control in conjunction with good
Tube design principles.
OD Ordering
in. Number Components of other manufacturers may look like Swagelok
1/4 MS-ST-400 tube fitting components—but they cannot be manufactured
3/8 MS-ST-600
in accordance with Swagelok engineering standards, nor
do they benefit from innovations in design and manufacture
1/2 MS-ST-810
defined by active Swagelok tube fitting patents.
For Swagelok tube fitting 5/8 MS-ST-1010
installations in close 3/4 MS-ST-1210
quarters, the Swagelok
preswaging tool is a
Installation Instructions
convenient accessory. Swagelok alloy 400/R-405 tube fittings can be installed
quickly, easily, and reliably.
Installation Instructions
Swagelok Mechanically Attached Pipe and Tube Fittings
Fully insert the tubing or pipe into Mark the nut at the 6 o’clock While holding the fitting body
the fitting and against the shoulder; position. steady, tighten the nut one and
rotate the nut finger-tight. one-quarter turns to the 9 o’clock
position.
For 1/16, 1/8, and 3/16 in.; 2, 3, and
4 mm tube fittings, tighten the nut
three-quarters turn to the 3 o’clock
position
Reassembly
You may disassemble and reassemble Swagelok tube fittings many times.
Fig. 1 Fig. 2
1. Insert tubing or pipe with preswaged ferrules into the 3. Tighten slightly with a wrench (Fig. 2).
fitting body until the front ferrule seats (Fig. 1).
Do not use the Swagelok gap inspection gauge with
2. Rotate the nut with a wrench to the previously pulled-up reassembled fittings.
position; at this point, a significant increase in resistance
will be encountered.
Preswaging Tool
Fig. 1 1. Install the Swagelok nut and ferrules 6. Loosen the nut.
onto the preswaging tool. 7. Remove the tubing with preswaged
2. Insert tubing into the preswaging ferrules from the preswaging tool.
tool. If the tubing sticks in the preswaging
3. Make sure that the tubing rests firmly tool, remove the tubing by gently
on the shoulder of the preswaging tool rocking it back and forth. Do not
body and that the nut is finger-tight. turn the tubing (Fig. 2).
Fig. 2
4. Mark the nut at the 6 o’clock 8. Insert tubing with preswaged
position. ferrules into the fitting body until the
5. While holding the preswaging tool front ferrule seats.
steady, tighten the nut one and 9. Rotate the nut with a wrench to the
one-quarter turns to the 9 o’clock previously pulled-up position; at
position. this point, a significant increase in
For 1/16, 1/8, and 3/16 in.; 2, 3, and resistance will be encountered.
Fig. 3
4 mm tube fittings, tighten the nut 10. Tighten slightly with a wrench (Fig. 3)
three-quarters turn to the 3 o’clock
Do not use the Swagelok gap inspection
position (Fig. 1).
gauge with fittings that were assembled
using the preswaging tool.