cylinder-gas-cylinders-46.html
AGA CW Handbook A4_32130-UK
47 / 52
47 delivery forms of shielding
gas
es 11.3 cylinder valve threads in order to increase safety and prevent incorrect connections, the cylin- ders and cylinder bundles have different threads depending on the
gas
or
gas
mixture. see below for the cylinder threads of the most common
gas
es. a regulator designed for the
gas
and cylinder pressure in question must be
use
d on the cylinders. using an adapter between the pressure regu- lator and the cylinder valve is not allowed. 11.4.
gas
purity the purity of the shielding
gas
is very significant in welding.
gas
purity affects the weld quality and welding speed, and the operating life of the electrode in tig welding. aga guarantees the purity of
gas
all the way to the delivery point, e.g. a cy- linder valve. from there onwards, it is the customer’s responsibility to ensure the purity of the
gas
on the way to the point of
use
. if the shielding
gas
is conducted to the point of
use
through a
gas
distribution network, you should invest in the design, construction and maintenance (tightness) of the network. here are a few tips for ensuring the purity of the
gas
from the cylinder valve or tapping point onwards. → do not let
gas
out of the cylinder valve before connecting the pres- sure regulator → flush the pressure regulator and the hoses for a while before start- ing the actual work →
use
only
gas
hoses intended for the shielding
gas
→ avoid unnecessarily long and large-diameter hoses → ensure that the hoses are undamaged and that all connections are tight → if the welding gun is water-cooled, ensure that it has no leaks →
use
the recommended
gas
flow and check it with a rotameter from the end of the nozzle if the flow is too high, the
gas
shielding is unstable, and if it is too low, it is insufficient to shield the arc and the molten pool. also remember that in
gas
arc welding, the
gas
shielding is reduced by draught, spatter accumulation in the
gas
nozzle and an unstable arc. 11.5. safe handling of
gas
using
gas
es in welding is risk-free when the
gas
es and
gas
equipment are handled correctly. for this reason, the
use
r must have sufficient information on the following issues: →
gas
properties and safe handling → correct handling of the equipment → protective measures required before work, during work and after work → currently valid regulations 11.6 laws and regulations there are a number of regulations concerning the transportation, storage and
use
of
gas
es. the storage and
use
of flammable and oxidising
gas
es in particular is strictly regulated. in addition to these regulations applying to everyone, there are often company-specific regulations which the
use
r must also follow. aga also arranges training on
gas
safety. we can also supply all necessary information on the safe
use
of our products. 24.32 x 1.814 sfs 2292
mison
® ar,
mison
® 2,
mison
® 2he,
mison
® n2,
mison
® h2,
mison
® 8,
mison
® 18,
mison
® 25,
mison
® he30, varigon ® he50, varigon ® he70, varigon ® h5, argon, nitrogen, helium, ar/co 2 mixtures. 21.80 x 1.814 sfs 2292 odorox ® , oxygen, carbon dioxide. left-handed 21.80 x 1.814 sfs 2292 formier ® 10, hydrogen. valve threads
terminology-ppm-superduplex-48.html