INSTALLATION
Tubing Cutter - For Facilitating GasConnections
~-------------------i
i
Included in the optional gas line installation kits
that
may be purchased with each SRl Instruments gas .
chromatograph is adisposable tubing cutter. This tool
15
capable of producing clean, fast cuts in chromatography
tubing
that
nval more
time-consuming tubing cutting
methods. Thehardened, beveledcutting surface of the
tool enables theuser
to
effect a through-and-through cut
upon the
tubing
in
one motion, cutting
COPIX:T
and
stainless steel tubing
with
ease. The
~ut
obtained allows
both metal and graphite
ferrules
to slide onto the tubing
without the normal
filing
or reaming necessary after
cutting tubing usingother methods. No
smearing
or
,
burring
is
produced
if
this tool is usedasdirected.
Users can
make
up
to
tenconnections
in
the time
that
it
took
to
cut, file, ream
and connect one single
tubing
connection,
Since the tubing is shearedand not
twisted or stressed, the inside passage is not
deformed
or
restricted, enabling the user
to
cut very small mternal
diameter stainless steel tubing (such as 1/16" O.D. x
0.005"
1.0.)
that
would likely collapse or otherwise
become restricted when cutby any other
tool.
Cuts on
very small tubing is seld?m atte!TIpted due tothe
.
difficulty encountered
using
ordinary methods. By
us~g
this tool, delicate tubing cuts become as easyand
routine
as larger tubing cuts.
Tubing cuts
in
tight or hard-to-reach
locations
can
be performed without difficulty with the use of this tool.
Since the cutting head is practically flat and requrres
relatively little clearance, itcanbe
in~rted
into
otherwise difficult spots toperform high precision cuts.
Asanexample, if gas tubing routed through a
.
hard-to-reach areainside the gas chromatograph
r~wred
cutting forthe insertion of an
a~pter
orother
special
fitting, the cutter head could be ,!,serted to the location
and the cutacheived without
having
to
dissassemble and
relocate or remove the adjacent hardware blocking access
tothe tubing. Oncecut, the tubing ends
co~d
be
reached
with another tool such as aneedle-nosed plier, and
pulled
to
gain
accessibility
for the installation of the
fitting.
TO USE: Locate the tubing
to be cut between the
beveled cutting surfaces
while maintaining the cutter
atananglecompletely
perpendicular to the tubing.
Holding the cutter steadily,
cut the tubing
in
onequick,
hard motion. Do nothesitate
during the cut
to
prevent any
possible twisting of the
blades or the tubing.
This
cutter cuts 1/8" and 1/16"
copper and stainless steel
with ease. After extended
use, especially when
used
to
cutstainless steel tubing. the
cutter blade
will
become
dull. Discard and replace the
tubing cutting toolwhen this
occurs
to
prevent damage
to
any
future
tube cuts.
~==·I====
When making cuts, the tubing should be located
between the two"jaws"of thecutter, making sure
that
the cutter grabs the tubing
in
the "V" notches located on
the blades. The cutter should be held completely
perpendicular to the tubing at the time.thecut is made.
to
avoid obtaining a bad angleon the
tubing
end.
Care
should
be
exercised toavoid pinching the fingers or hand
when operating this tool, aswith any other hand-held
cutting tool.
Keep cutter
in
a
perpendicular
position when
cutting and cut
in
onequick,
sharp motion.
