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Empties: Keep
valves
closed, replace
caps
securely;
mark
MT;
keep
them
separate
from
FULLS
and
return
promptly.
Prohibited
use.
Never
use a
cylinder
or
its
contents
for
other than its intended
use,
NEVER
as a
support
or
roller.
Locate
or secure
cylinders
so
they
cannot
be knocked
over.
Passageways
and
work
areas.
Keep cylinders
clear of
areas
where
they
may be struck.
Transporting cylinders.
With
a
crane,
use a secure
sup
port such
as a
platform
or
cradle.
Do
NOT lift
cylinders
off the
ground by
their valves
or
caps,
or
by
chains,
slings,
or
magnets.
Do NOT expose
cylinders
to
excessive
heat, sparks,
slag,
and
flame,
etc.
that
may
cause
rupture.
Do
not
allow
contents to
exceed 130F.
Cool with
water
spray
where such exposure exists.
Protect
cylinders particularly
valves from
bumps,
falls,
falling objects,
and weather.
Replace
caps
securely
when
moving cylinders.
Stuck valve.
Do
NOT
use a
hammer
or
wrench
to
open
a
cylinder
valve that
can
not
be
opened by
hand.
Notify
your
supplier.
Mixing
gases. Never
try
to
mix any gases in
a
cylinder.
Never refill any
cylinder.
Cylinder fittings
should
never
be modified
or
exchang
ed.
3.
Hose
Prohibited
use.
Never
use
hose other than that
designed
for the
specified
gas. A
general
hose identification
rule
is: red for fuel gas, green for oxygen, and black for inert
gases.
Use ferrules
or
clamps
designed
for the hose
(not
or
dinary
wire
or
other
substitute)
as a
binding
to
connect
hoses
to
fittings.
No copper
tubing splices.
Use
only
standard brass fit
tings
to
splice
hose.
Avoid
long
runs
to
prevent
kinks and abuse.
Suspend
hose off
ground
to
keep
it from
being
run
over,
stepped
on,
or
otherwise
damaged.
Coil
excess
hose
to
prevent
kinks and
tangles.
Protect hose from
damage by sharp edges,
and
by
sparks, slag,
and
open flame.
Examine
hose
regularly
for
leaks,
wear
and loose
con
nections. Immerse
pressured
hose in water; bubbes
in
dicate leaks.
Repair leaky
or worn
hose
by cutting
area
out
and
splic
ing
(1-2D3).
Do NOT
use
tape.
4.
Proper
Connections
Clean
cylinder
valve outlet of
impurities
that may
clog
orifices and
damage
seats
before
connecting regulator.
Except
for
hydrogen,
crack valve
momentarily,
pointing
outlet away from
people
and
sources
of
ignition. Wipe
with
a
clean lintless cloth.
Match
regulator
to
cylinder.
Before
connecting,
check
that the
regulator
label and
cylinder marking
agree, and
that the
regulator
inlet and
cylinder
outlet match.
NEVER CONNECT
a
regulator designed
for
a
particular
gas
or
gases
to
a
cylinder containing
any
other gas.
Tighten
connections. When
assembling
threaded
con
nections,
clean and smooth
seats
where
necessary.
Tighten.
If connection
leaks, disassemble, clean,
and
retighten using properly fitting
wrench.
Adapters.
Use
a
CGA
adapter
(available
from
your sup
plier)
between
cylinder
and
regulator,
if
one
is
required.
Use
two
wrenches
to
tighten adapter
marked RIGHT
and LEFT HAND threads.
Regulator
outlet
(or hose)
connections may be iden
tified
by right
hand threads for oxygen and left hand
threads
(with
grooved
hex
on
nut
or
shank)
for fuel gas.
5.
Pressurizing Steps:
Drain
regulator
of residual gas
through
suitable
vent
before
opening cylinder
(or
manifold valve)
by turning
adjusting
screw
in
(clockwise).
Draining
prevents
ex
cessive
compression
heat
at
high
pressure
seat
by
allowing
seat to
open
on
pressurization.
Leave
adjusting
screw
engaged slightly
on
single-stage regulators.
Stand
to
side of
regulator
while
opening cylinder
valve.
Open cylinder
valve
slowly
so
that
regulator
pressure in
creases
slowly.
When gauge is
pressurized (gauge
reaches
regulator
maximum)
leave
cylinder
valve in
following position:
For oxygen, and inert gases, open
fully
to
seal
stem
against possible
leak. For fuel gas,
open
to
less than
one
turn to
permit quick
emergency
shutoff.
Use pressure charts
(available
from your
supplier)
for
safe and
efficient,
recommended pressure
settings
on
regulators.
Check for leaks
on
first
pressurization
and
regularly
there-after. Brush with
soap
solution
(capful
of
Ivory
Liquid*
or
equivalent
per
gallon
of
water).
Bubbles
in
dicate leak. Clean off soapy
water
after test; dried soap
is combustible.
E.
User
Responsibilities
Remove
leaky
or
defective
equipment
from service im
mediately
for
repair.
See User
Responsibility
statement
in
equipment
manual.
*Trademark
of Proctor &
Gamble.
OM-254
Poge
3
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