GASES DIVISION
WELDING GASES & REFRIGERANTS
ACETYLENE
ACETYLENE (C2H2) is a slightly lighter than air, flammable,
colorless gas, with a distinct garlic–like odor. When mixed
with Oxygen, it gives flame temperatures up to 3,100°C
(5.612°F). It is spontaneously combustible in air, at pressures above 2 BAR (30psi).
•Boiling point: –83.8°C (–118.8°F).
•Trade name: Acetylene.
Precautions
•Although it is non–toxic, acetylene is anesthetic if inhaled.
Acetylene concentrations higher than 20% can cause
unconsciousness, so areas of storage and use should
always be well ventilated.
•Acetylene is explosive when mixed with air, however large
or small the quantity. Explosive reactions may occur on
ignition. It reacts explosively with halogens and halogenated compounds and will form an explosive compound
with copper; therefore, equipment containing more than
65% copper should not be used. Acetylene is also not
compatible with mercury or silver.
•Storage temperature should be kept under 54°C (130°F).
•For cutting and welding, safety goggles or glasses must
always be used.
OXYGEN
OXYGEN (O2) is a gas heavier than air, colorless, odorless
and taste free. Although it is a non–flammable natural born
gas oxygen, can still enforce combustion.
•Boiling point: –182.97°C (–297.35°F).
•Trade name: Oxygen.
Precautions
•Grease, oil or other flammable materials, may react violently on contact with oxygen under pressure. Therefore,
they must never mix with any welding or cutting equipment. Moreover, oxygen must never be used as a substitute for compressed air in pneumatic equipment, since
this type of equipment contains flammable lubricants.
•Storage temperature should be kept under 54°C
(130°F). Moreover, areas of storage should be dry and
well ventilated.
•Breathing high concentrations of O2, causes symptoms of
hyperoxia, which in some cases may be fatal.
•For cutting and welding, safety goggles or glasses must
be used.
MARIGASES®
Section A, Part 1
WELDING GASES & REFRIGERANTS
GASES DIVISION
ARGON
ARGON (Ar) is a slightly heavier than air, colorless and odor
free gas. It is an inert gas, commonly used as a shielding
gas for the Tungsten Inert Gas (TIG) welding, primarily to
clean the molten pool. It is non–toxic and non–combustible.
•Trade name: Argon.
Precautions
•As with all inert gases, argon displaces oxygen in non
ventilated areas, this can cause asphyxiation and death.
Therefore, areas of storage and use should always be
well ventilated and have the possibility for a fast evacuation. In addition, precautions should be taken in order to
avoid any leakage.
•Store temperature should be kept under 45°C (113°F).
•For welding, safety goggles or glasses should be used.
ARGON - CO2 MIXTURES
ARGON - CO2 mixtures are very useful in MIG/MAG welding as shielding gases. MARIGASES 80–20 mixture
(80% Argon and 20% CO2) is ideal for welding the unalloyed and low–alloyed carbon steels. It protects the
molten pool against contaminants in the atmosphere.
Precautions
•Store temperature should be kept under 45°C (113°F).
•For welding, safety goggles or glasses should be used.
NITROGEN
NITROGEN (N2) is a colorless, tasteless, and an odorless inert gas, slightly lighter than air; it is used for
purging tanks and pipelines and for the removal of moisture from refrigeration systems. It does not react
with any substance or gas and is non toxic. Nitrogen is also non combustible and does not burn nor does
it affect the respiratory system. It is slightly soluble in water and most other liquids and is a poor conductor
of heat and electricity. It can also be used for providing a safe blanket for cargo, preventing reactions with
Oxygen.
•Trade name: Nitrogen.
Precautions
•As with Argon, Nitrogen displaces Oxygen in non ventilated areas, this can cause asphyxiation and in
prolonged cases, even death. Therefore, areas of storage should always be well ventilated and have the
possibility for a fast evacuation for your staff.
•Extra precautions should be taken to avoid the possibility of leakages.
•Storage temperature should be kept under 45°C (113°F).
Section A, Part 1
GASES DIVISION
WELDING GASES & REFRIGERANTS
Technical Data
CYLINDER TYPE
AC–40
OX–40
Ar–50
Ar/CO2–50
80–20%
N2–50
99.9%
N2–50
99.999%
Cylinder Capacity
ltr
40
40
50
50
50
50
Gross Weight
kg
71.4
60
99.3
98.4
92.7
92.7
Nominal Tare
kg
65.2
52.2
81.2
81.2
81.2
81.2
Nominal outside
diameter
mm
229
230
231.5
231.5
231.5
231.5
Overall length
mm
1357
1337
1664
1664
1664
1664
Maroon
Blue
Grey
Grey/Yellow
Green
Green
Color
Forged
brass
Valve Type
W26.4 x
1/14 RH
int.
Valve Outlet Connection
Forged
brass
with nickel
bursting
disc
Forged
brass
with nickel
bursting
disc
Forged
brass
with nickel
bursting
disc
Forged
brass
with nickel
bursting
disc
Forged
brass
with nickel
bursting
disc
W21.8 x
1/14RH
ext.
W24.32 x
1/14RH
ext.
W24.32 x
1/14RH
ext.
W24.32 x
1/14RH
ext.
W24.32 x
1/14RH
ext.
PRODUCT CONTENT AT 150 C, 1 ATU
Volume
m3
5.6
6.4
11
11
10.2
10.2
Weight
kg
6.2
7.8
18.1
17.2
11.5
11.5
Nominal filling
pressure
bar
15
147
200
200
200
200
Cylinder test
pressure
bar
60
250
300
300
300
300
Gas refill Order No.
330201
330202
330211
330212
330231
330232
Cylinder Order No.
324001
324002
325011
325012
325031
325031
MARIGASES®
Section A, Part 1
WELDING GASES & REFRIGERANTS
GASES DIVISION
CALIBRATION GASES
CYLINDER
CAPACITY
Order No.
Ammonia (NH3 5.25% VOL.) in Air 35% LEL
10 Ltr.
330241
Butane (C4H10 0.63% VOL.) in Air 35% LEL
10 Ltr.
330243
Ethylene (C2H4 0.95% VOL.) in Air 35% LEL
10 Ltr.
330244
Methane (CH4 2.5% VOL.) in Air 50% LEL
10 Ltr.
330245
Propane (C3H8 0.74% VOL.) in Air 35% LEL
10 Ltr.
330246
Propylene (C3H6 0.70% VOL.) in Air 35% LEL
10 Ltr.
330247
Vinylchloride (C2H3Cl 1.33% VOL) in Air 35% LEL
10 Ltr.
330248
Butane (C4H10 0.57% VOL.) in Air 30% LEL
10 Ltr.
330249
CALIBRATION GAS
CYLINDER TYPE
CG–10
Cylinder Capacity (water) Ltr.
10
Application
Calibration
Gross weight – Kg (Lbs)
20 (44) [depends on gas mixture]
Nominal Tare Weight – Kg (Lbs)
18 (39.68)
Nominal Outside Diameter – mm
140
Overall length – mm
1,000
Color
Black/Orange
Valve Type
Forged Brass with bursting disc, inlet
filter and positive pressure cartridge
Valve outlet Connection
W 24.32 mm x 1/14”
Gas capacity (Kg)
2.0 [depends on gas mixture]
Gas capacity (M3)
1.5
Nominal Filling Pressure (Bar)
150
CG - 10 Cylinder Order No.
330141
Technical Data
MARIGASES™ offers a great variety, all purpose Calibration Gases.
They are efficiently used for calibration of gas detection systems.
MARIGASES™ guarantees the mixture components for all its Calibration
Gases available:
Read the Material Safety Data Sheet before using this product.
For detailed information on safety and health, please refer to Material Safety Data Sheet and/or Product Label.
MARICHEM MARIGASES Worldwide Services or any subsidiary or associated companies warranties of merchantability and competence, if any, along with
any expressed warranties concerning this merchandise, shall not be actionable or pertinent or effective if the good is used contrarily or differently to the
directions herein and in no other way due to impending hazards from inappropriate use of the good explained herein. Merchandise might vary insubstantially depending on country of origin. The information provided concerning merchandise is exclusively presented to the customer.
Section A, Part 1