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Welding Technology Machines |
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Safety
Recommendations
for
Gas
Welding
Gas
Cylinders - Gas
Cylinders
Gas
cylinders
must
be
prevented
from
sharp
impact
with
one
another
or
with
the
ground. Acetylene
cylinders
must
always
be
kept
upright. A
cap
must
be
fitted
on
the
cylinder
while
it
is
not
in
use. Cylinders
should
not
be
exposed
to
welding
flame,
direct
sun light,
water,
etc. Cylinders
should
be
well
fastened
at
their
places
so
that
they
do
not
fall.
Cylinders
should
not
be
used
as
supports
for
heavy
loads
or
as
rollers
for
moving
materials.
Cylinders
should
be
stored
in
a
well
protected,
well
ventilated,
dry
location,
well
away
from
highly
combustible
materials
such
as
oil
or
excelsior.
One
should
not
smoke
at
the
place
where
gas
cylinders
have
been
stored.
Cylinders
containing
acetylene
and
oxygen
should
be
stored
separately
or
quite
far
apart
from
each
other.
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Gas
cylinders
shall
be
so
conveyed
as
not
to
project
beyond
the
sides
or
ends
of
the
vehicle.
Adequate
means
shall
be
taken
to
prevent
cylinders
falling
off
from
the
vehicle
carrying
them.Do
not
use
a
hammer
or
wrench
to
open
any
valve
on
a
cylinder.
Cylinders
should
be
moved
by
tilting
and
rolling
them
on
their
bottom
edges.
Dragging
or
sliding
of
cylinders
should
be
avoided.
Cylinder
valves
shall
be
closed
before
moving
cylinders. Water,
dirt,
oil
or
grease
should
not
be
permitted
to
come
in
contact
with
oxygen
cylinders,
valves,
regulators,
hose
or
fittings.
Do
not
handle
oxygen
cylinders
with
oily
hands
or
oily
gloves.
Cylinder
valves
shall
be
closed
when
work
is
finished.
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The
cylinder
valve
shall
be
closed
when
the
cylinder
is
empty. Cylinders
shall
not
be
kept
at
a
place
where
they
might
become
a
part
of
the
electrical
circuit.
Cylinders
must
not
be
cut
up
for
scrap.The
numbers
and
markings
stamped
on
the
gas
cylinders
shall
not
be
tampered
with.
Never
attempt
to
mix
gases
in
a
cylinder.
Do
not
tamper
with
the
safety
devices
provided
in
cylinders
or
valves.
Never
tamper
with
nor
attempt
to
repair
gas
cylinders
or
valves
unless
qualified
to
do
so.
Call
acetylene
by
its
full
name
acetylene
and
oxygen
by
its
full
name
oxygen
and
not
by
the
word
gas.
Never
use
oxygen
or
acetylene
without
proper
pressure
regulators.
Before
connecting
the
pressure
regulator
to
a
cylinder
valve,
the
valve
shall
be
opened
slightly
and
closed
immediately.
This
action
which
is
termed
as
cracking
clears
the
valve
of
dirt
or
dust
that
otherwise
might
enter
the
pressure
regulator.
Stand
to
one
side
of
the
outlets
while
cracking.
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Open
cylinder
valve
slowly
and
let
the
cylinder
key
for
opening
valve
remain
on
valve
stem
so
that
the
cylinders
may
be
quickly
turned
off
if
an
emergency
arises.
To
test
for
leaks
a
solution
of
soap
and
water
may
be
brushed
on
the
valve
socket
and
gland
nut.
Bubbles
indicate
leakage.
Should
a
leak
occur,
the
valve
should
be
closed
and
gland
nut
tightened.
If
this
does
not
stop
the
leak,
take
the
cylinder
out
in
the
open
air,
keeping
away
from
fires
or
open
lights
and
notify
the
supplier
immediately.
An
acetylene
cylinder
valve
shall
not
be
opened
more
than
1.5
turns
of
the
spindle.
Never
use
acetylene
at
pressures
in
excess
of
15
psi
(1.05
kg/cm2).
A
hammer
or
wrench
shall
not
be
used
to
open
oxygen
cylinder
valve.
If
this
is
not
possible
to
open
the
valve
by
hand,
the
supplier
shall
be
notified. Frozen
valves
or
regulators
should
be
thawed
with
hot
water
and
never
by
flame.
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