FDI P2131, Техническое руководство, Страница: 132 / 161

9 9
INSTALLATION INSTRUCTIONS
Installation Instructions
Swagelok tube fittings 1 in./25 mm and smaller can be
installed quickly, easily, and reliably with simple hand
tools.
Over 1 in./25 mm sizes require use of a hydraulic
swaging unit to swage the ferrules onto the tubing.
Safety Precautions
■
Do not bleed system by loosening fitting nut or
fitting plug.
■
Do not assemble and tighten fittings when system
is pressurized.
■
Make sure that the tubing rests firmly on the
shoulder of the tube fitting body before tightening
the nut.
■
Use the correct Swagelok gap inspection gauge to
ensure sufficient pull-up upon initial installation.
■
Always use proper thread sealants on tapered pipe
threads.
■
Do not mix materials or fitting components from
various manufacturers—tubing, ferrules, nuts, and
fitting bodies.
■
Never turn fitting body. Instead, hold fitting body
and turn nut.
■
Avoid unnecessary disassembly of unused fittings.
■
Use only long reducers in female Swagelok end
connections.
See the instructions starting below for installation
of Swagelok tube fittings, O-seal male connectors,
caps and plugs, port connectors, tube adapters,
positionable elbows and tees, weld fittings, depth
marking tool, and preswaging tool.
10 10
INSTALLATION INSTRUCTIONS
While holding the fitting
body steady, tighten
the nut one and 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.
Fully insert the tube into the fitting and
against the shoulder; rotate the
nut finger-tight.
High-pressure
applications and
high safety-
factor systems:
Further tighten
the nut until the
tube will not turn
by hand or move axially in the fitting.
Mark the nut at the
6 o’clock position.
Swagelok Tube Fittings
Up to 1 in./25 mm
These instructions apply both to traditional fittings and
to fittings with the advanced back-ferrule geometry.
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