Page 423 - 4300 Catalog Cover.pdf

4300 Catalog Assembly / Installation
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
T13
Deburring
Lightly deburr the I.D. and O.D. of the tube end to remove burrs
and sharp edges. Use the In-Ex deburring tool or power deburr-
ing tool (shown on page S23),or emery paper if using tube
cutter (for soft tube) or hacksaw. Use front mounted deburring
tools if using TP432 or TP1025 tube preparation center found
on page S55.
Note: Point tube end downward during deburring to keep chips
from entering the tube.
Cleaning
Remove metal chips from I.D. with a brush or compressed
air. Wipe the I.D. and the O.D. of the deburred tube end with a
clean rag. Debris present in the tube end can result in system
contamination or can get embedded into the flange or flare,
causing imperfections that are potential leak paths.
Seal-Lok and Seal-Lok Lite
Assembly
The proper assembly of the Seal-Lok fitting requires several
steps, each important in guaranteeing a leak-free connection
and a long service life:
1. Cutting, deburring and cleaning the tube
2. Sleeve Attachment
3. Inspection of sleeve attachment
4. Final installation
Thefirst stepof cutting, deburringandcleaninghasbeencovered
in a previous section (see page T12).
For recommendedminimumandmaximumtubewall thickness for
Seal-Lok fittings, please refer to Table A2 and A3 on page A7.
Sleeve Attachment
Attaching the sleeve to the tube end is the next critical assem-
bly step. This can be accomplished by two methods: flanging
or brazing.
Fig. T14 – Seal-Lok Union cutaway with flanged and brazed as-
semblies
Braze Sleeve
O-ring
Parflange
Sleeve
Nut
Fitting Body
Flanging
The flanging method requires the use of an appropriate forming
machine to create the flange or flat face on the tube end. Since
the flat face of the flanged tube seals against the O-ring within
the fitting groove, it is important that this surface be relatively
smooth. Proper tube end preparation (cutting, deburring and
cleaning) will help accomplish this goal
The Parker Parflange® machines utilize an orbital cold forming
process to produce a flat, smooth, rigidly supported 90° sealing
surface on the tube end.
Fig. T15 – Parker’s exclusive orbital spindle motion produces a
perfect flange every time
Parker offersabenchmountmodel knownas theParflange1025,
shown in Fig. T16, as well as a more versatile, fully automated
high speed model, Parflange 1050. For additional information
on the Parflange machines and tooling, refer to section S of
this catalog.
Fig. T16 – Parflange 1025 machine
Tube End / Seal-Lok Assembly