SIST-TP CEN/TR 15339-4:2015

Thermal spraying - Safety requirements for thermal spraying equipment - Part 4: Gas and liquid fuel supply

This part of EN 15339 specifies safety requirements of machines and equipment for thermal spraying, in this case of gas supply including supply of liquid fuels.
This part of EN 15339 should be used in conjunction with prEN 15339-1, which deals with general aspects when designing, manufacturing, and/or putting in service of machines or equipment and with the responsibility for issuing the CE Conformity Declaration.
Generally, the requirements of EU Directive 94/9/EC [1] are valid for the use of this European Standard.

Thermisches Spritzen - Sicherheitsanforderungen für Einrichtungen für das thermische Spritzen - Teil 4: Gas- und Flüssigbrennstoffversorgung

Dieser Teil der EN 15339 legt Sicherheitsanforderungen von Maschinen und Einrichtungen zum thermischen
Spritzen fest, in diesem Fall von Gasversorgung einschließlich Versorgung mit Flüssigbrennstoffen.
Dieser Teil der EN 15339 sollte in Verbindung mit der Norm prEN 15339-1 angewandt werden, die die
allgemeinen Aspekte der Konstruktion, Herstellung, Inbetriebsetzung und/oder des Betriebes von Maschinen
oder Einrichtungen und die Verantwortung für die CE Konformitätserklärung behandelt.
Grundsätzlich sind die Anforderungen der EU Richtlinie 94/9/EG [1] gültig für die Anwendung dieser
Europäischen Norm.

Projection thermique - Exigences de sécurité relatives au matériel de projection thermique - Partie 4: Alimentation en gaz et en combustible liquide

La présente Norme européenne spécifie les exigences de sécurité des machines et du matériel de projection thermique et, dans le cas présent, de l’alimentation en gaz et en combustible liquide.
Il convient d’utiliser la présente norme conjointement avec le prEN 15339-1, qui traite des aspects généraux de conception, fabrication et/ou mise en service des machines ou du matériel et de la responsabilité de l’émission de la Déclaration CE de conformité.
D’une manière générale, les exigences de la Directive UE 94/9/CE [1] sont valables pour l’application de la présente Norme européenne.

Vroče brizganje - Varnostne zahteve za opremo za vroče brizganje - 4. del: Oskrbovanje s plinskim in tekočim gorivom

Ta del standarda EN 15339 določa varnostne zahteve za stroje in opremo za vroče brizganje, v tem primeru za oskrbo s plinom, vključno z oskrbo s tekočimi gorivi.
Ta del standarda EN 15339 naj bi se uporabljal v povezavi s standardom prEN 15339-1, v katerem so obravnavani splošni vidiki za projektiranje, proizvodnjo in/ali začetek uporabe strojev ali opreme ter odgovornost za izdajo izjave o skladnosti CE.
Na splošno zahteve iz Direktive 94/9/ES [1] veljajo za uporabo tega evropskega standarda.

General Information

• Status: Published
• Public Enquiry End Date: 24-Sep-2012
• Publication Date: 17-Feb-2015
• ICS: 25.220.20 - Surface treatment
• Technical Committee: IPKZ - Protection of metals against corrosion
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 27-Jan-2015
• Due Date: 03-Apr-2015
• Completion Date: 18-Feb-2015
• Ref Project: CEN/TR 15339-4:2014 - Thermal spraying - Safety requirements for thermal spraying equipment - Part 4: Gas and liquid fuel supply

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TP CEN/TR 15339-4:2015
01-marec-2015
9URþHEUL]JDQMH9DUQRVWQH]DKWHYH]DRSUHPR]DYURþHEUL]JDQMHGHO
2VNUERYDQMHVSOLQVNLPLQWHNRþLPJRULYRP
Thermal spraying - Safety requirements for thermal spraying equipment - Part 4: Gas
and liquid fuel supply
Thermisches Spritzen - Sicherheitsanforderungen für Einrichtungen für das thermische
Spritzen - Teil 4: Gas- und Flüssigbrennstoffversorgung
Ta slovenski standard je istoveten z: CEN/TR 15339-4:2014
ICS:
25.220.20 Površinska obdelava Surface treatment
SIST-TP CEN/TR 15339-4:2015 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 15339-4:2015

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SIST-TP CEN/TR 15339-4:2015

TECHNICAL REPORT
CEN/TR 15339-4

RAPPORT TECHNIQUE

TECHNISCHER BERICHT
December 2014
ICS 25.220.20
English Version
Thermal spraying - Safety requirements for thermal spraying
equipment - Part 4: Gas and liquid fuel supply
Projection thermique - Exigences de sécurité relatives au Thermisches Spritzen - Sicherheitsanforderungen für
matériel de projection thermique - Partie 4: Alimentation en Einrichtungen für das thermische Spritzen - Teil 4: Gas- und
gaz et en combustible liquide Flüssigbrennstoffversorgung


This Technical Report was approved by CEN on 16 September 2014. It has been drawn up by the Technical Committee CEN/TC 240.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15339-4:2014 E
worldwide for CEN national Members.

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SIST-TP CEN/TR 15339-4:2015
CEN/TR 15339-4:2014 (E)
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Function of thermal spraying equipment .4
3.1 General .4
3.2 Gases for thermal spraying .5
3.3 Safety related features of gas, liquid fuel, and cooling water supply .6
4 Potential hazards .6
5 Safety requirements – Protection measures .7
5.1 General requirements and measures .7
5.2 Safety requirements and protection measures for gas storage .7
5.3 Safety requirements and protection measures for high pressure gas supply .7
5.4 Safety requirements and protection measures for liquid fuel supply .8
5.5 Safety requirements and protection measures for cooling media supply .8
5.6 Gas detection .8
5.7 Measures in the case of a gas leakage .9
5.8 Leak test – Pressure test .9
5.9 Finishing the installation - Inspections .9
6 Requirements for manufacture, supply, operation and maintenance .9
6.1 Requirements for the manufacturer.9
6.2 Requirements for the integrator .9
6.3 Requirements for the user . 10
6.4 Requirements for the gas supplier . 10
7 National rules . 10
Annex A (informative) Schematic representations of equipment for supply of gas and liquid fuel. 11
Bibliography . 14

2

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SIST-TP CEN/TR 15339-4:2015
CEN/TR 15339-4:2014 (E)
Foreword
This document (CEN/TR 15339-4:2014) has been prepared by Technical Committee CEN/TC 240 “Thermal
spraying and thermally sprayed coatings”, the secretariat of which is held by DIN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
CEN/TR 15339, Thermal spraying - Safety requirements for thermal spraying equipment is composed of the
following parts:
— Part 1: General requirements
— Part 2: Gas control units (published as a European Standard)
— Part 3: Torches for thermal spraying and their connection and supply units
— Part 4: Gas and liquid fuel supply
— Part 5: Powder and wire feed units
— Part 6: Spray booth, Handling system, Dust collection, Exhaust system, Filter
3

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SIST-TP CEN/TR 15339-4:2015
CEN/TR 15339-4:2014 (E)
1 Scope
This Technical Report specifies safety requirements of equipment for thermal spraying, in this case of gas
supply including supply of liquid fuels. It deals with safety requirements for storage and the high pressure
piping system from storage to the gas control unit or pressure regulator equipment. Safety requirements for
gas hoses, hose assembly and torches are presented in CEN/TR 15339-3.
This document should be used in conjunction with CEN/TR 15339-1, which deals with general aspects of
designing, manufacturing, and/or putting into service of machines or equipment and with the responsibility to
issue the CE Conformity Declaration.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 657, Thermal spraying — Terminology, classification
EN 15339-2, Thermal spraying — Safety requirements for thermal spraying equipment — Part 2: Gas control
units
EN ISO 3821, Gas welding equipment — Rubber hoses for welding, cutting and allied processes (ISO 3821)
CEN/TR 15339-1, Thermal spraying — Safety requirements for thermal spraying equipment — Part 1:
General requirements
CEN/TR 15339-3, Thermal spraying — Safety requirements for thermal spraying equipment — Part 3:
Torches for thermal spraying and their connections and supply units
CEN/TR 15339-6, Thermal spraying — Safety requirements for thermal spraying equipment — Part 6: Spray
booth, Handling system, Dust collection, Exhaust system, Filter
3 Function of thermal spraying equipment
3.1 General
Thermal spraying processes are described and schematically represented in EN 657.
Thermal spraying processes as flame, plasma or HVOF (high velocity oxygen fuel) spraying use inert,
flammable and oxidizing gases which possess a significant potential of danger. Oxygen is considered as a
dangerous gas because hardly inflammable material will burn in the presence of a certain concentration of
oxygen.
Pressurised air, nitrogen, or carbon dioxide (CO ) are applied for cooling the substrate’s surface or the part to
2
be sprayed. Fuel gases and oxygen are used for fusing of sprayed coatings made out of self fluxing alloys.
For such applications, an appropriate and safe supply shall be ensured by gases from manifold cylinder
banks, cryogenic gas tanks or public piping systems (natural gas).
The installation of the gas delivery system, taken in conjunction with control measures, such as gas detection
flow rates, and interlocking of the thermal spray equipment, forms a crucial part of the HAC. The respective
class shall be considered. For details, see CEN/TR 15339-1 and CEN/TR 15339-6.
4

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SIST-TP CEN/TR 15339-4:2015
CEN/TR 15339-4:2014 (E)
3.2 Gases for thermal spraying
Table 1 — Gases for thermal spraying
Thermal spraying process Gases and mixtures used - Remarks
Flame spraying acetylene (C H )
2 2
a
propane (C H )
3 8
propylene (C H )
3 6
hydrogen (H )
2
oxygen (O )
2
air
c
carbon dioxide (CO )
2
High Velocity Oxygen Fuel spraying (HVOF) acetylene (C H )
2 2
ethene (C H )
2 4
a
propane (C H )
3 8
b
CNG (natural gas)
hydrogen (H )
2
oxygen (O )
2
nitrogen (N )
2
air
c
carbon dioxide (CO )
2
Cold spraying helium (He)
nitrogen (N )
2
and their mixtures
air
Detonation spraying acetylene (C H )
2 2
propylene (C H )
3 6
oxygen (O )
2
nitrogen (N )
2
air
c
carbon dioxide (CO )
2
Arc spraying argon (Ar)
nitrogen (N )
2
argon or nitrogen mixtures
air
c
carbon dioxide (CO )
2
Plasma spraying argon (Ar)
helium (He)
hydrogen (H )
2
nitrogen (N )
2
and their mixtures
air
c
carbon dioxide (CO )
2
Laser spraying, Laser cladding helium (He)
nitrogen (N )
2
argon (Ar)
5

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SIST-TP CEN/TR 15339-4:2015
CEN/TR 15339-4:2014 (E)
Thermal spraying process Gases and mixtures used - Remarks
and their mixtures
air
c
carbon dioxide (CO )
2
a
Propane is applied as a liquid gas containing >=95 % C H and remnants or traces of butane (C H ),
3 8 4 10
ethane (C H ), ethene (C H ) or butane-isomers
2 6 2 4
b
CNG (natural gas) contains mainly methane (CH ), however its content varies between 80 and more than
4
95 %. Further constituents are inert gases, ethane, propane, butane, pentane (C H ). The PCI (BTU) can be
5 12
kept constantly adjusted by the N content.
2
c
CO can be applied beside of pressurized air or nitrogen for cooling the substrate or the coating itself.
2
3.3 Safety related features of gas, liquid fuel, and cooling water supply
— Storage of burnable and inflammable gases.
— Storage of liquid fuels.
— Supply of high pressure gases in the high pressure gas supply system (> 20 bar) running from the
storage to the spraying equipment, e.g. to the gas control cabinet (for details, see EN 15339-2) or to the
stop and control fitting of the torch hose (for details, see CEN/TR 15339-3).
— Supply of liquid fuel from the storage to the control cabinet (for details, see EN 15339-2).
— Supply of oxygen or air for acceleration the combustion of the spray jet.
— Storage, supply and distribution of cooling media for thermal spraying.
4 Potential hazards
For a safe operation and supply of gaseous and liquid fuels, the following hazards shall be considered for
normal operation or foreseeable abnormal circumstances.
— Risk of fire or explosion:
— if leakage occurs on the connections in the piping system;
— if the distance between gas cylinders or bundles of different gases is not appropriate;
— if leakages are produced when changing the connections.
— Risk of over-heating or damage by impairment of ice, snow, direct sunlight to the gas supply.
— Release of gases or liquids under high pressure.
— Impairment of the environment by gases and/or liquids.
— Risk of anoxia in the spray cabin by release of inert gases (e.g. Ar) or CO , if the ventilation is not
2
working, or if the operator enters the cabin before sufficient venting occurred (refer to 5.7)
— Risk and increase of fire by release of oxygen.
— Risk of flashback, if the stop valve or the gas pressure reducing fitting does not operate sufficiently.
6

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SIST-TP CEN/TR 15339-4:2015
CEN/TR 15339-4:2014 (E)
5 Safety requirements – Protection measures
5.1 General requirements and measures
Specific safety conditions and protective measures are required by European, national or local regulations.
These requirements shall be fulfilled predominantly. The following equipment is covered by this Technical
Report.
Gas cylinders, manifold cylinder bundles and cryogenic gas tanks, storage receptacle for liquid fuel, piping
systems for gases, liquid fuel and cooling media.
Appr
...

SLOVENSKI STANDARD
oSIST prEN 15339-4:2012
01-september-2012
9URþHEUL]JDQMH9DUQRVWQH]DKWHYH]DRSUHPR]DYURþHEUL]JDQMHGHO
2VNUERYDQMHVSOLQVNLPLQWHNRþLPJRULYRP
Thermal spraying - Safety requirements for thermal spraying equipment - Part 4: Gas
and liquid fuel supply
Thermisches Spritzen - Sicherheitsanforderungen für Einrichtungen für das thermische
Spritzen - Teil 4: Gas- und Flüssigbrennstoffversorgung
Ta slovenski standard je istoveten z: prEN 15339-4
ICS:
25.220.20 Površinska obdelava Surface treatment
oSIST prEN 15339-4:2012 en,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 15339-4:2012

---------------------- Page: 2 ----------------------
oSIST prEN 15339-4:2012


EUROPEAN STANDARD
DRAFT
prEN 15339-4
NORME EUROPÉENNE

EUROPÄISCHE NORM

June 2012
ICS 25.220.20
English Version
Thermal spraying - Safety requirements for thermal spraying
equipment - Part 4: Gas and liquid fuel supply
 Thermisches Spritzen - Sicherheitsanforderungen für
Einrichtungen für das thermische Spritzen - Teil 4: Gas-
und Flüssigbrennstoffversorgung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 240.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15339-4:2012: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 15339-4:2012
prEN 15339-4:2012 (E)
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Function of thermal spraying equipment .4
3.1 General .4
3.2 Gases for thermal spraying .5
3.3 Safety related features of gas, liquid fuel, and cooling water supply .6
4 Potential hazards .6
5 Safety requirements – Protection measures .6
5.1 General requirements and measures .6
5.2 Safety requirements and protection measures for gas storage .7
5.3 Safety requirements and protection measures for high pressure gas supply .7
5.4 Safety requirements and protection measures for liquid fuel supply .8
5.5 Safety requirements and protection measures for cooling media supply .8
5.6 Gas detection .8
5.7 Measures in the case of a gas leakage .8
5.8 Leak test – Pressure test .8
5.9 Finishing the installation - Inspections .9
6 Requirements for manufacture, supply, operation and maintenance .9
6.1 Requirements for the manufacturer.9
6.2 Requirements for the integrator .9
6.3 Requirements for the user .9
7 National rules .9
Annex A (informative) Schematic representations of equipment for supply of gas and liquid fuel . 10
Bibliography . 15

2

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oSIST prEN 15339-4:2012
prEN 15339-4:2012 (E)
Foreword
This document (prEN 15339-4:2012) has been prepared by Technical Committee CEN/TC 240 “Thermal
spraying and thermally sprayed coatings”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
3

---------------------- Page: 5 ----------------------
oSIST prEN 15339-4:2012
prEN 15339-4:2012 (E)
1 Scope
This part of EN 15339 specifies safety requirements of machines and equipment for thermal spraying, in this
case of gas supply including supply of liquid fuels.
This part of EN 15339 should be used in conjunction with prEN 15339-1, which deals with general aspects
when designing, manufacturing, and/or putting in service of machines or equipment and with the responsibility
for issuing the CE Conformity Declaration.
Generally, the requirements of EU Directive 94/9/EC [1] are valid for the use of this European Standard.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 657, Thermal spraying — Terminology and classification
prEN 15339-1, Thermal spraying — Safety requirements for thermal spraying equipment — Part 1: General
requirements
EN 15339-2, Thermal spraying — Safety requirements for thermal spraying equipment — Part 2: Gas control
units
prEN 15339-3, Thermal spraying — Safety requirements for thermal spraying equipment — Part 3: Torches
for thermal spraying and their connections and supply units
prCEN/TR 15339-6, Thermal spraying — Safety requirements for thermal spraying equipment — Part 6:
Spray cabin, handling system, dust collection, exhaust system, filter
3 Function of thermal spraying equipment
3.1 General
Thermal spraying processes are described and schematically represented in EN 657.
Thermal spraying uses flammable gases for flame, plasma or HVOF (high velocity oxygen fuel) spraying
processes, which possess a significant potential of danger. Pure oxygen shall also be considered a dangerous
gas, because also hardly inflammable material will burn in the presence of a certain concentration of oxygen.
Furthermore, pressurised air, nitrogen, or carbon dioxide (CO ) are applied for cooling the substrate’s surface
2
or the part to be sprayed. Likewise, flammable gases and oxygen are used for fusing of sprayed coatings
made out of self fluxing alloys.
For such applications, an appropriate and safe supply shall be ensured by gases from manifold cylinder
banks, cryogenic gas tanks or public piping systems (natural gas). Usually, such supply systems are used for
gas pressure of more than 20 bar.
The installation of the gas delivery system, taken in conjunction with control measures, such as gas detection
and interlocking of the thermal spray equipment, forms a crucial part of the HAC. The respective class shall be
considered. For details, see prEN 15339-1 and prCEN/TR 15339-6.
4

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oSIST prEN 15339-4:2012
prEN 15339-4:2012 (E)
3.2 Gases for thermal spraying
Table 1 — Gases for thermal spraying
Thermal spraying processes Gases used
Flame spraying acetylene (C H )
2 2
propane (C H )
3 8
propylene (C H )
3 6
hydrogen (H )
2
oxygen (O )
2
carbon dioxide (CO )
2
air
High Velocity Oxygen Fuel spraying (HVOF) acetylene (C2H2)
ethene (C H )
2 4
propane (C H )
3 8
propylene (C H )
3 6
hydrogen (H )
2
oxygen (O )
2
carbon dioxide (CO2)
air
Cold spraying helium (He)
nitrogen (N )
2
and their mixtures
air
Detonation spraying acetylene (C H )
2 2
oxygen (O )
2
air
Arc spraying argon (Ar)
nitrogen (N )
2
carbon dioxide (CO )
2
air
Plasma spraying argon (Ar)
helium (He)
hydrogen (H )
2
nitrogen (N )
2
and their mixtures
carbon dioxide (CO2)
air
Laser spraying helium (He)
nitrogen (N )
2
argon (Ar)
and their mixtures
carbon dioxide (CO )
2
air

5

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oSIST prEN 15339-4:2012
prEN 15339-4:2012 (E)
3.3 Safety related features of gas, liquid fuel, and cooling water supply
 Storage of burnable and inflammable gases.
 Storage of liquid fuels.
 Supply of gases in the high pressure gas supply system (> 20 bar) running from the storage to the
spraying equipment, e.g. to the gas control cabinet (for details, see EN 15339-2) or to the stop and
control fitting where the torch hose is connected to (for details, see prEN 15339-3).
 Supply of liquid fuel from the storage to the control cabinet (for details, see EN 15339-2).
 Supply of oxygen or air for acceleration the combustion or the spray jet.
 Storage, supply and distribution of cooling media, e.g. water or carbon dioxide (CO ) for HVOF or plasma
2
spraying.
4 Potential hazards
For a safe operation of gas storage and supply of gases and liquid fuels, the following hazards shall be
considered for normal operation or abnormal circumstances.
 Surface temperature on cylinders can be too high.
 Risk of fire or explosion when leakage occurs on the connections in the piping system.
 Risk of fire or explosion, if the distance between gas cylinders or bundles of different gases is not
appropriate, for example, if leakages are produced when changing the connections.
 Risk of over-heating or damage, if the impairment of rain, direct sunlight to the gas cylinders or manifold
cylinder banks cannot be avoided.
 Release of gases or liquids under high pressure.
 The environment can be impaired, if gases like acetylene, propane, carbon dioxide (CO ) and/or liquids
2
like cooling media, hot water, escape.
 Release of oxygen can create and increase the risk of fire, if, e.g., insulation material has absorbed
oxygen to a critical extent.
 Flashback, if the stop valve in the control unit or the gas pressure reducing stop and control fitting does
not operate sufficiently.
5 Safety requirements – Protection measures
5.1 General requirements and measures
Specific safety conditions and protective measures are required by European, national or local regulations.
The following equipment is covered by this European Standard.
Gas cylinders, manifold cylinder banks and cryogenic gas tanks, storage receptacle for liquid fuel, piping
systems for gases, liquid fuel and cooling media.
6

---------------------- Page: 8 ----------------------
oSIST prEN 15339-4:2012
prEN 15339-4:2012 (E)
Appropriate devices and equipment to fulfil the requirements are
 gas stop valves (manually or automatically operated),
 gas pressure control,
 pressure reducing valves,
 appropriate pipes for the connection of the gas cylinders to one another and to the bundle or from the
storage receptacle to the control cabinet,
 fittings, connecting parts,
 pressure gauges,
 flashback arresters.
5.2 Safety requirements and protection measures for gas storage
Wherever possible, stores for cryogenic liquid gas tanks, bulk supply of gases and/or tanks for liquid fuels
shall be located outside t
...