Air Liquide OP 110 User manual

OP 110
Pressure reducers
for technical gases
Operating manual

2
Content Page
1 Use 4
1.1 Intended use 4
1.2 Unintended use 4
1.3 ATEX Directive 2014/34/EC 4
1.4 REACH regulation (EC) n°1907/2006 5
1.5 PED Directive 2014/68/EC: Pressurized equipment 5
1.6 FOOD regulation (EC) n°1935/2004 5
1.7 Cleaning 5
2Safety instructions 5
3Starting operation 7
4Stopping operation 7
5Operation and maintenance note 8
5.1 Troubleshooting 8
5.2 Maintenance 8
5.3 Disposal and recycling 9
6 Repairs 9
7Cylinder pressure regulators with flow meter gauge 9
8Indications to Cylinder pressure regulator having Flowmeter 9
9 Guarantee 9
10 Note 9
Appendix 1 Gas compatibility 10

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1
1
1 3
5
10 4
6
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3
3 8
4
7
2
2
2 8
510
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10
9
7
7
5
8
Basecontrol
Primejet
Constant
Primestage
Eurojet H
Hepal AG

4
1 Use
1.1 Intended use
These cylinder pressure regulators are intended
for use with compressed gases released under
pressure, on pressurized gas cylinders up to 300
bar filling pressure (depending on technical de-
sign) as well as for under pressure liquified gases,
to reduce the corresponding cylinder pressure and
to keep the desired working pressure constant.
The pressure regulator must only be used for
gases for which they’ve been designed for. See
gas compatibility table in Appendix1.
1.2 Unintended use
• Pressure regulation valves must not be
used for liquids.
• Pressure regulators must not be operated
in ambient temperatures below -20 °C and
above 50 °C (see datasheet).
Description according to EN ISO 2503
1. Cylinder valve
2. Inlet connection
3. High pressure gauge
4. Low pressure gauge
(gauge l/min in pressure regulator
with flowmeter gauge)
5. Pressure adjustment screw
6. Shut-off valve
7. Outlet connection
(E.g.. hose nozzle with union.
Nut not included.)
8. Pressure relief valve
9. Regulating office throttle (for pressure
control), only in pressure regulators with
flowmeter gauge
10. Type designation, name of manufacturer
and/or distributor
This operating manual is intended to ensure the
safe use of the pressure regulator for its intended
purpose. Reading and following instruction in the
operating manual contributes to preventing haz-
ards, reduces downtime and increases the reliabil-
ity and service life of the devices.
• Only use pressure reducers for the gases
intended for them. These can be found in the
gas compatibility table (see attachment1)
or in the corresponding product catalogue.
1.3 ATEX Directive 2014/34/EC
The cylinder pressure regulators are 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 regulators are not capable of causing an ex-
plosion through their own potential sources of
ignition: thus, they can be installed in ATEX zone
1 or 2, provided that up to date regulations, rules
and operating instructions are observed accord-
ingly during installation and operation.
Reminder: it is the responsibility of the end user to
define the ATEX zone.
Marking gas type
A = Acetylene
O = Oxygen
P = LPG
N = CO2, Nitrogen, Inert gas
H = Hydrogen
D = Compressed air
M = Methane/Natural gas
Y = MPS
P1 = Highest admission pressure
P2 = Maximum outlet pressure or flow
Device class according to EN ISO 2503 resp.
ISO7291; 2010
Date of production – Code
Manufacturer Code
THIS OPERATING MANUAL
MUST ALWAYS REMAIN
AVAILABLE WITHIN REACH.
Safety instructions see also Point 2: in case of
doubt the manufacturer or distributor should be
contacted.

5
1.4 REACH regulation (EC)
n°1907/2006
The pressure reducers are made of brass parts,
essentially the body, 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 pre-
sent in a concentration above 0,1 % in our prod-
ucts 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.
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.
2 Safety instructions
All indications labeled with this symbol are
considered as special safety instructions.
2.1 The pressure regulators conform to the rec-
ognized state of the art, as well as the
requirements of existing standards.
• No changes or alterations may be performed
without the manufacturer‘s permission.
2.2 No adapters should be installed between
the cylinder valve and the cylinder pressure
regulator.
Improper operation, or use for purposes
other than those intended can create haz-
ards for the user and other persons, as well
as damage to the pressure regulator.
In general, the regulations, standards and legal
guidelines of the country of use are applied. As fol-
lows the most important from the D-A-CH region.
2.3 Regulations that are applicable in Germany:
2.3.1 Accident prevention regulations /
DGUV rules
• 100-001 “Principles of prevention“
• 113-001 “Explosion prevention rules“
Name plate
• 100-500 “Operation of work equipment“
2.3.2 Laws, directives, technical regulations
Product safety law (ProdSG) with the specific:
• Product safety directives (ProdSV), e.g.
Explosion protection directive (11. ProdSV)
or Pressure device directive (14. ProdSV)
5.Dimensional drawing

6
• Work safety directive with Appendix 1 – 3
• Work safety technical rules (TRBS)
• Hazardous materials technical rules
(TRGS)
• Plant safety technical rules (TRAS)
2.3.3 Bulletins, norms and guidelines
• Pressure equipment directive, 2014/68/EU
• Bulletin Use of compressed gas cylinders
(DVS 0212)
• Refer to the safety data sheets of each
specific gas type
2.4 Regulations that are applicable in Austria:
• Employee protection law ASchG
• Work equipment directive (AM-VO)
BGBL. II. Nr. 164/2000 igF.
• General operating instructions for acetylene
welding and cutting equipment according to
§ 26 para. 4 of the AM-VO.
2.5 Regulations that must be observed in
Switzerland:
• SR 832.20 Federal Act on Accident Insu-
rance (AIA)
Art. 82 The employer is obligated to take all
the necessary steps to prevent workplace
accidents and occupational diseases,
which, according to experience, are neces-
sary, can be applied according to the latest
technology and are appropriate for the re-
spective circumstances.
• SR 832.30 Ordinance on the Prevention of
Art.3
• SR 930.114 Ordinance on the Safety of
Pressure Equipment (Pressure Equipment
Regulation, DGV)
• SR 832.312.12 Ordinance on the Safety and
Health Protection of Workers in the Use of
Pressure Equipment (Use of Pressure
Equipment Ordinance, DGVV)
• PrSG = Federal Law on Product safety
SR930.11
- Ordinance on product safety
PrSVSR930.111
- Ordinance on the Safety of Machinery
SR819.14
2.6 Safety instructions for toxic and corrosive
gases:
• Due to malfunctions or open safety devices,
harmful gases and vapors can may escape.
Ensure sufficient ventilation or exhaust ven-
tilation. In case of hazardous gases, take
special actions. In particular, connect the
outlets of the savety valve and purge valves
with fixed pipelines and dispose the sub-
stances in a safe and evironmentally com-
patible manner
• When changing cylinders with toxic, flam-
mable or corrosive gases, appropriate per-
sonal protection measures must be taken.
The permissible values of the workplace
concentration must be observed.
• Operators must be made aware of the spe-
cial hazards of the gas and of possible per-
sonal and that other protective measures
are pointed out.
Toxic and corrosive gases:
- Risk of poisoning and chemical burns!
Flammable gases:
- Fire and explosion hazard!
Oxidizing gases:
- Strongly fire-promoting!
Inert gases:
- Risk of suffocation!

7
3 Starting operation
The sequence must be strictly
respected!
Explosion hazard! All parts such as tools
and hands that come into contact with
oxygen must be kept free from oil and
grease.
3.1 Before starting work, the instructions in this
operating manual must be read and
followed during the work!
3.2 Check if the pressure regulator is suitable
for the intended gas type and pressure (see
symbol Point 3).
3.3 Check if the cylinder valve connector and the
seal are clean and undamaged. In case of
any damage, the pressure regulator must not
be connected.
Before screwing on the pressure
regulator, open the cylinder valve once
briefly and close it again in order to blow
out any possible dirt. Do not stand in front
of the valve when doing this or hold your
hand in front of the valve. (except for
hydrogen and hydrogen mixtures, propane,
corrosive, toxic and irritant gases, and
flammable test gases). Ensure good venti-
lation.
3.4 Connect the regulator with screw connec-
tion to the bottle valve (1) using a suitable
spanner or connection bracket (2) in a gas-
tight manner. For regulators with manual
connection (O-ring seal), this screw connec-
tion must be tightened by hand. No tools
must be used for manual connection. The
mounting position of the regulator must
always be vertical in relation to the pressure
gauges.
3.5 Connect the hose to the hose connector on
the outlet stud (7) and to the consumer de-
vice. Hoses and hose connections (hose
nozzles) shall be used according to actual
and related standard. Secure the hoses with
suitable hose clips.
3.6 Adjusting the pressure
Before releasing the gas into the system, check
the following:
1. Correct version of the cylinder pressure
regulator.
2. All indicators at zero.
3. Pressure fully turned off on the pressure
adjustment screw (5) (anticlockwise).
4. Re-adjustment valves are closed.
Then close the shut-off valve (6) and release
pressure and pressure regulator by unscrewing
the pressure adjustment screw (5). Open the
cylinder valve slowly, the high-pressure gauge (3)
indicates the cylinder pressure. Open the shut-off
valve (6) and slightly open the corresponding shut-
off valve of the consumer device. Then screw down
the pressure adjustment screw (5) to set the
desired outlet pressure (operating pressure) and
check it on the low pressure gauge (4). Correct the
pressure setting if the pressure dips.
Carry out leak test with Air Liquide leak de-
tection spray!
4 Stopping operation
• For short shutdown periods: close the
shut-off valve on the pressure regulator.
• For longer shutdown periods: Close the
cylinder valve (1), release pressure, pres-
sure regulator has zero pressure, loosen
pressure adjustment screw (5). Close the
shut-off valves on the pressure regulator
and the consumer device. Never tighten or
loosen screw connectors while they are
under pressure!

8
Air Liquide recommends annual periodic inspec-
tions of the pressure regulator by competent, au-
thorized personnel. The frequency of this test
depends mainly on the use of the device (inten-
sive, moderate, occasional).
Faults that occur can have many causes.
For your own safety, avoid tampering or
making repairs on your own.
5 Operation and
maintenance note
5.1 Troubleshooting
Default Cause Remedy
Mounting impossible Connections cannot be mount Verify the compatibility of
gases, inlet and outlet
Damaged connections Replace the regulator
Insufficient flow rate
Cross section of passage limited by a valve Open the valve
Insufficiently filled or empty cylinder Change the cylinder
Valve not operating Change the cylinder
Under-dimensional equipment Contact Air Liquide
Downstream device not operational Change the device
Gas leak Tightness default
Close the cylinder valve
and replace the safety valve.
Gas comes out of the
relief valve
Leakage at the poppet
or damaged relief valve
Rise of the outlet
pressure Leakage at the poppet
Unstable outlet
pressure or frosting
Working temperature too low
Close the cylinder valve.
Bring back the equipment
temperature above 0 °C.
Gas used is (Ar), carbon dioxide (CO2)
or nitrous oxide (N2O). Use a heater at the inlet.
Flow rate to high
Respect the max. flow rate
of the regulator.
Limit the flow by a valve
or a calibrated orifice.
Vibrations
Flow rate to high Limit the flow by a valve
or a calibrated orifice.
Presence of valve with quick opening
on the downstream pipe
5.2 Maintenance
Always protect the pressure regulator from dam-
age (visual inspection at regular intervals).
The factory settings of the connection
seals must not be changed.
Ensure that the connector seals, sealing surfaces
and gauges are in perfect condition.
If a fault occurs, for example if the outlet
pressure rises when output = 0, if there are
leaks into the atmosphere, the gauges are
defective, or when the safety valve is acti-
vated, shut off the pressure regulator, close
the cylinder valve immediately.

9
8 Indications to Cylinder
pressure regulator having
Flowmeter
Setting of the required flow:
1. Close shut-off valve (6)
2. Open slowly cylinder valve (1).
The inlet gauge (3) is indicating the cylinder
pressure.
3. Open shut-off valve (6) and corresponding
shut-off valve of the implement.
4. Set the desired flow by adjustment valve (6).
9 Guarantee
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.
10 Note
Please use the product only for the purpose that
Air Liquide intended and only if you are competent
in the application and follow the technical safety
guidelines or safety procedures. If there are any
doubts related to the use of the product, request
specific Air Liquide product information before-
hand or talk to an Air Liquide specialist.
5.3 Disposal and recycling
At the end of the equipment’s useful life or when
it is impossible to repair it, it is essential to respect
the local regulations for recycling / disposal of our
equipment. To prevent reuse, these products must
be unsuitable for use.
In accordance with EU Directive 2018/851 on
waste, the owner of the equipment ensures that
when recovery is not carried out in accordance
with article10, the waste will be subjected to safe
disposal operations that comply with the provi-
sions of article13 on the protection of human
health and the environment.
The licensee must take steps to promote high
quality recycling and, to this end, must establish
separate waste collections when technically, envi-
ronmentally and economically feasible and ade-
quate to meet the quality standards required by
the relevant recycling sectors.
6 Repairs
Repairs to the pressure regulators must
only be done by competent and trained per-
sonnel in authorized specialist workshops.
Only original spare parts must be used for
repairs.
6.1 If unauthorized repairs or changes are
made by the user or a third party without
permission from the manufacturer, then li-
ability for the consequences is rescinded.
7 Cylinder pressure regula-
tors with flow meter
gauge
For these pressure regulators, points 1 to 7 in this
operating manual also apply. The flow quantity set
by the pressure adjustment screw (5) is indicated
on the flow meter gauge (4). In pressure regula-
tors with a flow meter gauge, a regulating office/
throttle (for pressure control) (9) is built in. Check
if a regulating office/ throttle (for pressure con-
trol) is already installed in your equipment. If yes
this must be removed because the mounting
holes are not adapted to the pressure regulator.

10
Equipment Parameters Main gases
Number of
pressure stages
Prepressure
in bar
Adjustable
Back pressures
minimum to
maximum
in bar
Nominal
flow rate
N2(m3/h)
Inert gases
Argon-CO2-
mixture
Carbon dioxide
Carbon
monoxide
Breathable air
Synth. air
Oxygen
Nitrous oxide
Hydrogen
Acetylen
Propane
Propylene
Ethylene
Methane
Ammonia
Technical
test gas
BASECONTROL Ar/CO2 200-24 1 200 0–24l/min 200 BASECONTROL O2 200-10-30 1 200 0–10 30 200 BASECONTROL C2H2 25-1,5-5 1 25 0–1,5 5 25 BASECONTROL C3H8 25-4-5 1 25 0–4,0 5 10 10 PRIMEJET 200-10-30 1 200 0–10 30 200 200 50 200 200 200 200 PRIMEJET 200-30-75 1 200 5–30 75 200 PRIMEJET 200-50-120 1 200 5–30 120 200 200 50 200 200 200 PRIMEJET 200-24 1 200 0–24l/min 200 200 50 PRIMEJET 200-50 1 200 0–50l/min 200 PRIMEFLOW 200-15 1 200 0–15l/min 200 200 50 PRIMEFLOW 200-30 1 200 0–30l/min 200 200 50 200 PRIMEFLOW 200-50 1 200 0–50l/min 200 PRIMEJET C2H2 25-1,5-5 1 25 0,5–15 5 25 PRIMEJET C3H8 20-4-5 1 300 1–4 5 10 10 PRIMEJET 300-10-30 1 300 1–10 30 300 300 50 300 300 300 PRIMEJET 300-10-50 1 300 1–10 30 300 300 50 300 300 PRIMEJET 300-24 l/min 1 300 0–24l/min 300 300 50
Appendix 1: Gas compatibility

11
Equipment Parameters Main gases
Number of
pressure stages
Prepressure
in bar
Adjustable
Back pressures
minimum to
maximum
in bar
Nominal
flow rate
N2(m3/h)
Inert gases
Argon-CO2-
mixture
Carbon dioxide
Carbon
monoxide
Breathable air
Synth. air
Oxygen
Nitrous oxide
Hydrogen
Acetylen
Propane
Propylene
Ethylene
Methane
Ammonia
Technical
test gas
PRIMEJET 300-50 l/min 1 300 0–50l/min 300 PRIMEFLOW 300-15 1 300 0–15l/min 300 300 50 PRIMEFLOW 300-30 1 300 0–30l/min 300 300 50 PRIMESTAGE 200-10-20 2 200 0–10 20 200 200 50 200 EUROJET-H 200-200-120 1 200 0–200 120 200 200 50 200 HEPAL AG 25 1 200 5–25 180 200 200 50 200 200 200 HEPAL AG 50 1 200 10–50 300 200 200 50 200 200 200 HEPAL AG 100 1 200 25–100 400 200 200 50 200 200 200 HEPAL AG 200 1 200 80–200 450 200 200 50 200 200 200 HEPAL AG 25 1 300 5–25 180 300 300 50 300 300 HEPAL AG 50 1 300 10–50 300 300 300 50 300 300 HEPAL AG 100 1 300 25–100 400 300 300 50 300 300 HEPAL AG 200 1 300 80–200 450 300 300 50 300 300

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www.airliquide.de
OP 110/A:01 from November 2023 · Subject to technical modifications, all data supplied without liability.
Contact
Air Liquide Deutschland GmbH
Fütingsweg 34
47805 Krefeld
Tel: [phone] - 9444
[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
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