Air Liquide DUO200 User manual

DUO200 / DUO300 / THP200
FLEX HOSES
OP 1050 CWE
Operating Instructions

L
2
THP200
FOOD200
Dimensions
DUO200 DUO300

3
Warning
To preserve the quality of our product throughout its usage in the best safety conditions, please read
this manual carefully and strictly follow the instructions that it contains. Non- compliane with these
instructions or modification of the product many results in serious accidents or bodily injuries. Air
Liquide shall not be held responsible in case of non approved usage of the product.
Air Liquide reserves the right to make all necessary modifications to the specifications described
hereafter without notice.
Content Page
1General Information 4
1.1 Safety 4
1.2 Air Liquide commitments 4
1.3 ATEX Directive 2014/34/EC 4
1.4 REACH regulation (EC) n°1907/2006 4
1.5 PED Directive 2014/68/EC: Pressurized equipment 5
1.6 FOOD regulation (EC) n°1935/2004 5
1.7 Cleaning 5
1.8 Warranty 5
2Field of Use 6
2.1 Intended use 6
2.2 Unintended use 6
3Assembly – Activation 6
3.1 Precautions before assembly 6
3.2 Mounting 6
3.3 Activation 8
4 Marking 8
4.1 Indications on the flexible hose 8
5 Maintenance 9
5.1 Troubleshooting 9
5.2 Maintenance 9
6 Disposal 9

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1. General Information
1.1 Safety
First of all, it is ESSENTIAL to read and respect the
safety instructions described in the document
“General Safety Instructions” delivered with the
product.
For safety reasons the inlet fitting and the seal of
the flexible hose are specific to a gas or a mixture
family, they are so designed to avoid any connec-
tion mistake.
NEVER use the flexible hose for an application or
a gas different than the one for which it is intend-
ed.
• During operation, ensure the anti-whip safety
cable has been securely fixed at its two extrem-
ities.
• During operation, ensure the anti-whip safety
cable has been securely fixed at its two extrem-
ities.
• Before connecting the flexible hose to avoid any
risk of falling cylinders etc., ensure that:
- Cylinders are well attached,
- Bundles are well settled on a plane and hori-
zontal surface,
- The location of the cylinders is sufficiently
well ventilated.
NEVER dismantle a flexible hose if:
• The cylinder or bundle valve is not closed,
• The flexible hose is under pressure.
NEVER tighten or loosen a connection under
pressure.
NEVER connect two flexible hoses together.
In each case slowly open and close cylinder valve.
Never attempt to repair a flexible hose. In case of
problem, close the cylinder valve fully, purge the
flexible hose and proceed to replace with a new
flexible hose.
1.2 Air Liquide commitments
Air Liquide certifies that the equipment is manu-
factured, tested and controlled, in accordance
with the rules of art and design of Air Liquide.
This equipment has been degreased by special
cleaning procedures and can therefore be used for
oxygen service.
SG flexible hoses are compliance with the
ENISO10380:2012 standard.
1.3 ATEX Directive 2014/34/EC
The equipment is not in the scope defined in
points a), b) et c) of the article of the ATEX
Directive ; consequently, they shall not bear the CE
marking.
The equipment are not capable of causing an ex-
plosion through their own potential sources of
ignition: then, they can be installed in ATEX zone
1 or 2, as far as respecting up to date regulations,
rules, operating instructions, in accordance with
the sound engineering practice are followed dur-
ing installation and use.
Reminder: it belongs to the end user to define the
ATEX zone.
1.4 REACH regulation (EC)
n°1907/2006
Equipment from Air Liquide can be made of brass
components, which is a copper alloy with a lead
content between 1 % and 4 % w/w. As requested
by art. 33 of REACH Regulation (Registration,
Evaluation and Authorisation of Chemicals) and
with reference to current list of SVHC (substances
of very high concern) available on ECHA website,
we inform that lead may be present in a concentra-
tion above 0,1% w/w in our products made of
brass.
Lead inclusion in the SVHC list in June 2018 does
not modify the use conditions described in operat-
ing instructions.
Lead will not be released to the surrounding envi-
ronment or the gas used during normal use.
After product end of life, the pressure reducers
must be scrapped by an authorized metal recycler.

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1.5 PED Directive 2014/68/EC:
Pressurized equipment
The AIR LIQUIDE fittings with a nominal diameter
<25 mm (e. g. pressure regulators, valves, filters,
etc.) meet the requirements of Article 4,
Paragraph3 of the Directive 2014/68/EU and the
provisions of the article. Therefore these devices
do not bear a CE marking according to Article18
of this Directive.
1.6 FOOD regulation (EC)
n°1935/2004
The AL equipment enhancing the term “FOOD” in
their designation are specifically designed for use
with food gases used for food and beverage ap-
plications. They are compliant with Regulation EC
1935/2004 which requires that packaging and
articles intended to be in contact with foodstuffs
are to be manufactured in compliance with good
manufacturing practices and standard operating
procedures.
Thus, under normal or foreseeable conditions of
use, , no transfer of contaminants, eg, metal ele-
ments, to food in quantities that could endanger
human health, modify food composition or dete-
riorate organoleptic characteristics is expected.
Nethertheless, the end-user must check the com-
pliance with an eventual national regulation.
Articles for food usage has a Food logo marking.
For traceability purposes, the batch number is
written on each article and AL can perform a batch
recall, as requested by its Quality.
1.7 Cleaning
Each equipment is subject to a grease removal
and a high quality cleaning to preserve the purity
of gas in the equipment as well as for use with
oxygen for compatible equipment.
A suitable packaging protects the equipment
against exterior pollutants during storage and
transport.
Take care to avoid polluting the equipment during
installation.
1.8 Warranty
The standard warranty period is one year from the
date of delivery in accordance with the general
terms and conditions of Air Liquide Deutschland
GmbH, Air Liquide Austria GmbH and Carbagas
AG. The standard warranty period is only valid for
goods that have been used according to the oper-
ating manual and generally applicable industry
practices and standards.

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2. Field of Use
2.1 Intended Use
High pressure stainless steel hoses from Air
Liquide are designed to transport compressed
and dissolved gases under pressure, from pres-
surized gas cylinders or bundles with up to 300
bar filling pressure (depending on the technical
design), safely to the gas manifold.
Gas purity is guaranteed up to and including N60.
These operating instructions apply to the product
lines:
• DUO 200
• THP 200
• FOOD 200
• DUO 300
Technical data such as operating pressure and
gas compatibility can be found in the actual data
sheet of the corresponding product line.
2.2 Unintended use
• The equipment must not be used for liquid
gases
• The equipment must not operate at ambient
temperatures below -20 °C and above +60 °C.
• The equipment must not be modified or used
contrary to its intended use.
3. Assembly – Activation
3.1 Precautions before assembly
• After opening the packaging, check that the
equipment is not damaged and that the
contents correspond to the accompanying de-
livery notes.
• Flexible hoses are sensitive to various mechan-
ical constraints, before start of use, follow the
recommendations of Air Liquide:
- Act cleanly in order not to pollute,
- Avoid twisting,
- Avoid or limit vibration risks,
- Avoid or limit “water hammer”,
- Avoid tension and compression stress.
• Assemble the flexible hose in a ‘U’ shape with
the single curve produced by using the right
connection (straight or angle) and with appro-
priate length (1,3 or 2,5 mt).
• Ensure the assembly of the flexible hose is such
that it’s curvature on the bend is higher than the
allowed minimum:
- R > 140 mm for DN5 and DN6
- R > 190 mm for DN10.
3.2 Mounting
Attachment of the safety cable(s):
At flexible outlet:,on gas manifold:
Guide the safety rope through the opening pro-
vided. Attach the snap hook (only for bundles)
to the attachment point on the bottom.
• At flexible inlet, on the cylinder (with the loop)
or on the bundle (with the snap hook).
Flexible mounting:
One end to cylinder/bundle, the other end to the
gas manifold (semi-automatic or panel).
• At the gas manifold: check the seal in the nut
and replace if necessary.
• Attach nut of hose hand-tight to antiflapping or
check valve which is mounted on the manifold.
• Tighten with wrench. Caution: Counter with sec-
ond wrench, on body of anitflapping or check
valve, so that the connection to gas manifold is
not impaired.
• At Cylinder or Bundle: check the seal, replace if
necessary
• Hand tighten the union nut or hand connection
of the hose to the bottle/bundle valve.
• For flat seals, tighten with a hexagonal wrench,
or by hand for O-ring seals.

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Wrong use Correct use
Don’t pull the hose off, uncoil it.
Don’t twist the hose, install it torsion-free.
Dimension the hose adequately, pay attention that
the flexible length is not too short.
Avoid any obliquely movement to the installation
plane, the movement should be in the hose axis
only.
Avoid overbending when suspending the hose, use
a support roll.
If larger axial movement has to be absorbed: don’t
install the hose in a straight line, install it in a
U-shaped bend.
Avoid torsional twist when fittings are not in line,
install in one plane only.

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3.3 Activation
• Slowly open the cylinder valve and, in two stages:
- Slowly and partially open the cylinder valve
and wait for the balancing of the pressures.
- Always slowly complete the total opening of
the valve.
• Close the cylinder valve and check on the high-
pressure gauge of the manifold that the pres-
sure does not change.
• Slowly open the purge valve on the manifold
valve inlet block and de-pressurise the hose
leaving a small residual pressure showing on the
pressure gauge before closing the purge valve.
• Repeat above 4 to 6 times the purge cycle (air /
moisture contaminants) from the hose.
• Open again the cylinder valve. Proceed slowly
to avoid “water hammer”
• Check the tightness of the assembly (upstream
circuit closed). The tightness of each flexible
hose, being controled in factory, it remains never-
theless necessary to check the tightness of con-
nections.
• On the flexible hose label, indicate the expiry date.
Permanently mark the corresponding Month &
Year.
Never tighten a connection under pressure
4. Marking
4.1 Indications on the flexible hose
Every flexible hose carries following marking:
• ISO 10380.
• Flexible hose type (example: T2 10a).
• Manufacturer Identification.
• Tube material.
• Date of manufacture (month / year).
• Nominal Pressure in Mpa and, between brack-
ets, in bar.
• Reference n° for the tracebility of the product
and link with the compliance test certificate.
Label
Month
1
2
3
4
5
6
7
8
9
10
11
12
Year
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
Expiry date:
Bundle hose Cylinder hose
O-Ring Flatseal
www.airliquide.com
QR
Date of commissioning:
Max. service time: 5 years

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5. Maintenance
5.1 Troubleshooting
5.2 Maintenance
Flexible hoses require a periodic check. The perio-
dicity of this check depends on flexible hose use
conditions (number of cycles, type of gas, environ-
ment...).
The maximum flexible hose lifetime is 5 years
from the date of activating.
The flexible is designed to resist 1000 hydraulic
pressure cycling : on a bundle/cylinder change
basis and taking into account purging cycles, the
maximal lifetime is 5 years. However the date of
replacement of the flexible hose should not go
over 1000 pressure cycling. The pressure cycles
are determined by the conditions of use and the
implemented gas. The replacement cycle frequen-
cy may be reduced by Air Liquide depending on
the use conditions and the gas implemented.
Local regulations may also apply. AL advises to
respect the regulations at all times. It is the users
responsibility to ensure that this is followed and
respected.
When installed this expiry date needs to be clear-
ly pointed out by perforating the label fixed to the
flexible hose.
Fault Cause Remedy
Assembly impossible Connections do not connect Verify the compatibility of gas,
the inlet and the outlet
Fittings are damaged Change the flexible hose
Gas leak Tightening failure * Close the cylinder valve and
change seals
* In the case of hoses with metal / metal sealing, if there is a leak, change the hose.
6. Disposal
In accordance with Directive 2008/98/EC on waste,
the equipment holder ensures that, where recovery
in accordance with Article10 is not undertaken,
waste undergoes safe disposal operations which
meet the provisions of Article13 on the protection
of human health and the environment.
The holder shall take measures to promote high
quality recycling and, to this end, shall set up sep-
arate collections of waste where technically, envi-
ronmentally and economically practicable and
appropriate to meet the necessary quality stand-
ards for the relevant recycling sectors.
The AL equipment should be removed and/or re-
cycled in compliance with the current national regu-
lations.
If the equipment is put out of order, its disposal has
to follow the safety regulations for people and en-
vironment.
The plastic or metallic components must be disas-
sembled and gathered by kind of material.
Materials can be then processed as a waste or
recycled.

Rev. 1.1 / 2092 / ce · OP 1050DUO200 / DUO300 / THP200 SS FLEX HOSES · CWE · Subject to technical modifications, all data supplied without liability.
Contact
Air Liquide Deutschland GmbH
Fütingsweg 34
47805 Krefeld
Tel: [phone] - 4555
[email protected]
www.airliquide.de
Air Liquide Austria GmbH
Sendnergasse 30
2320 Schwechat
Tel: [phone]
[email protected]
www.airliquide.at
Carbagas AG
Hofgut
3073 Gümligen
Tel: [phone]
[email protected]
www.carbagas.ch
A world leader in gases, technologies and services for Industry and
Health, Air Liquide is present in 78 countries with approximately 64,500
employees and serves more than 3.8 million customers and patients.
www.airliquide.de