SIST EN 562:2003

SLOVENSKI STANDARD
SIST EN 562:2003
01-december-2003
1DGRPHãþD
SIST EN 562:1995
Oprema za plamensko varjenje - Manometri za varjenje, rezanje in sorodne
postopke
Gas welding equipment - Pressure gauges used in welding, cutting and allied processes
Gasschweißgeräte - Manometer für Schweißen, Schneiden und verwandte Prozesse
Matériel de soudage aux gaz - Manometres utilisés pour le soudage, le coupage et les
techniques connexes
Ta slovenski standard je istoveten z: EN 562:2003
ICS:
17.100 Merjenje sile, teže in tlaka Measurement of force,
weight and pressure
25.160.30 Varilna oprema Welding equipment
SIST EN 562:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 562:2003

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SIST EN 562:2003
EUROPEAN STANDARD
EN 562
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2003
ICS 17.100; 25.160.30 Supersedes EN 562:1994
English version
Gas welding equipment - Pressure gauges used in welding,
cutting and allied processes
Matériel de soudage aux gaz - Manomètres utilisés pour le Gasschweißgeräte - Manometer für Schweißen, Schneiden
soudage, le coupage et les techniques connexes und verwandte Prozesse
This European Standard was approved by CEN on 17 March 2003.
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. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 562:2003 E
worldwide for CEN national Members.

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SIST EN 562:2003
EN 562:2003 (E)
Contents
page
Foreword.3
1 Scope .3
2 Normative references .3
3 Terms and definitions.4
4 Pressure.4
4.1 Unit of pressure.4
4.2 Maximum scale reading .4
4.3 Maximum pressure mark.5
5 Manufacturing requirements .5
5.1 Materials.5
5.2 Design and dimensions.5
6 Safety .9
7 Marking .10
8 Tests.10
8.1 General.10
8.2 Design and manufacturing standard .10
8.3 Accuracy.10
8.4 Torsion test.11
8.5 Bend test.12
8.6 Case vent test.13
8.7 Strength .13
8.8 Flammability test.13
Bibliography .14
2

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SIST EN 562:2003
EN 562:2003 (E)
Foreword
This document (EN 562:2003) has been prepared by Technical Committee CEN/TC 121 "Welding", the secretariat
of which is held by DS.
This European Standard shall be given the status of a national standard, either by publication of an identical text or
by endorsement, at the latest by November 2003, and conflicting national standards shall be withdrawn at the latest
by November 2003.
This document supersedes EN 562: 1994.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,
Slovakia, Spain, Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies requirements for Bourdon-tube pressure gauges normally used with compressed
gases at pressures up to 300 bar in welding, cutting and allied processes. It also covers use for dissolved acetylene
and for liquefied gases under pressure.
It does not cover gauges for acetylene in acetylene manufacturing plants.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 472:1994, Pressure gauges — Vocabulary.
EN 29539, Materials for equipment used in gas welding, cutting and allied processes (ISO 9539:1988).
EN ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions,
tolerances and designation (ISO 228-1:2000).
EN ISO 4589-2:1999, Plastics - Determination of burning behaviour by oxygen index - Part 2: Ambient-temperature
test (ISO 4589-2:1996).
ISO 7-1, Pipe threads where pressure-tight joints are made on the threads - Part 1: Dimensions, tolerances and
designation.
ISO 497, Guide to the choice of series of preferred numbers and of series containing more rounded values of
preferred numbers.
ISO 7000:1989, Graphical symbols for use on equipment—Index and synopsis.
ISO 10102, Assembly tools for screws and nuts—Double headed open-ended engineers' wrenches—Length of
wrenches and thickness of the heads.
)
1
ANSI/ASME B1.20.1, Pipe threads, general purpose (inch) .

) nd
1
Standard published and available at: ANSI – American National Standards Institute, 11 West 42 Street, New York, NY
10036.
3

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SIST EN 562:2003
EN 562:2003 (E)
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN 472:1994 and the following
apply.
3.1
bourdon-tube pressure gauges
device incorporating flexible tubes with direct indication by pointer and graduated scale of the pressure being
measured
3.2
dial
plate or area on which the scale is marked
3.3
pointer stop
projection that stops the travel of the pointer
4 Pressure
4.1 Unit of pressure
All pressures given are gauge (effective) pressures in bar.
4.2 Maximum scale reading
Where practical the maximum scale reading for a particular gas and pressure level shall be selected from the
values given in Table 1. Where it is not practicable the maximum scale reading shall be selected from the R10
series of preferred numbers or more rounded values given in ISO 497.
Table 1 — Maximum scale reading
Values in bar
Pressure level Acetylene Oxygen and other gases
2,5
4
1 6
low-pressure (LP) 1,6 10
2,5 16
25
40
250
high-pressure (HP)
40 315
(see NOTES 1, 2 and 3)
400
NOTE 1 250 bar pressure gauge for use with CO and compressed gas cylinders filled to a maximum settled filling pressure of
2
185 bar at 15 °C.
NOTE 2 315 bar pressure gauge for use with compressed gas cylinders filled to a maximum settled filling pressure of 230 bar
at 15 °C.
NOTE 3 400 bar pressure gauge for use with compressed gas cylinders filled to a maximum settled filling pressure of 300 bar
at 15 °C.
4

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SIST EN 562:2003
EN 562:2003 (E)
4.3 Maximum pressure mark
2)
The maximum operating pressure shall be indicated on the dial by a symbol or coloured mark and shall not
exceed ¾ of the maximum scale reading.
5 Manufacturing requirements
5.1 Materials
5.1.1 General
The materials of the pressure gauge components liable to come into contact with the gas shall have adequate
resistance to the chemical action of the gas under operating conditions.
Bourdon tubes and other parts in contact with acetylene gas shall conform to EN 29539.
5.1.2 Oxygen pressure gauges
Bourdon tubes and other parts in contact with the gas shall be resistant to the chemical action of the oxygen and
shall not be flammable under operating conditions.
Thread sealants or sealing rings shall also be resistant to the chemical action of the oxygen and shall not be
flammable under operating conditions.
Components in contact with oxygen gas shall conform to EN 29539.
Only lubricants suitable for use in oxygen at the service pressure and temperature shall be used.
5.2 Design and dimensions
5.2.1 Operational
...