EN 764-7:2002

Pressure equipment - Part 7: Safety systems for unfired pressure equipment

This European Standard specifies the requirements for safety systems which protect a vessel, a system of vessels, piping, accessories or assemblies from exceeding operating conditions.
It is also applicable to safety related indicators and alarms, signals and warning devices when used in safety systems.
Equipment connected together by piping of adequate capacity, free from potential blockages and which does not contain any valve that can isolate any part from the safety system may be considered as a single pressure system when considering the requirements for overpressure protection.
Safety systems include the interconnections between the equipment to be protected and any discharge location. This location can either be an outlet to atmosphere or the entry into a closed disposal system.
NOTE   The scope of this standard and its relationship to the safety accessories and other protective devices described in the Pressure Equipment Directive are shown in annex F.

Druckgeräte - Teil 7: Sicherheitseinrichtungen für unbefeuerte Druckgeräte

Diese Europäische Norm legt die Anforderungen an Sicherheitseinrichtungen zum Schutz von Druckbehältern,         Systemen von Druckbehältern, Rohrleitungen, Ausrüstungsteilen und Baugruppen vor unzulässigen Betriebsbedingungen fest.
Sie beinhaltet auch sicherheitsrelevante Anzeige- und Alarmeinrichtungen, Signale und Warneinrichtungen, sofern diese in Sicherheitseinrichtungen verwendet werden.
Geräte, die über Rohrleitungen ausreichenden Querschnitts, ohne eventuelle Sperren und ohne irgendein Ventil, das Bereiche des Sicherheitssystems abtrennen kann, zu Systemen verbunden sind, dürfen in Bezug auf die Anforderungen an die Absicherung gegen Drucküberschreitung als einfaches Drucksystem betrachtet werden.
Sicherheitseinrichtungen schließen die Verbindungen zwischen dem zu schützenden Gerät und der gesamten Abblaseleitung ein. Es kann sich dabei um eine Ableitung in die Atmosphäre oder in ein geschlossenes Entsorgungssystem handeln.
ANMERKUNG   Der Anwendungsbereich der vorliegenden Norm, bezogen auf die in der Druckgeräte-Richtlinie be-
schriebenen Ausrüstungsteile mit Sicherheitsfunktion und weitere Einrichtungen mit Schutzfunktion ist in Anhang F dargestellt.

Equipements sous pression - Partie 7: Systèmes de sécurité pour équipements sous pression non soumis à la flamme

La présente Norme européenne prescrit les exigences applicables aux systèmes de sécurité qui protègent un
récipient, un système de récipients, une tuyauterie, des accessoires ou des ensembles vis-à-vis de dépassements
des conditions de fonctionnement.
Elle est également applicable aux indicateurs et alarmes liés à la sécurité, aux dispositifs de signalisation et
d’avertissement lorsqu’ils sont utilisés en tant que systèmes de sécurité.
Les équipements raccordés les uns aux autres dans un système par des tuyauteries de débit adéquat, exempts de
blocages potentiels et ne comprenant pas d’appareil de robinetterie susceptible d'isoler une partie quelconque
peuvent être considérés comme un système sous pression unique eu égard aux exigences de protection vis à vis
des surpressions.
Les systèmes de sécurité comprennent les interconnexions entre les équipements devant être protégés et tout
point de décharge. Cet emplacement peut être un orifice de sortie à l'atmosphère ou le raccordement à un système
de récupération fermé.
NOTE Le domaine d’application de la présente norme et ses relations avec les accessoires de sécurité et les autres
dispositifs de protection de la directive équipements sous pression sont indiqués en Annexe F.

Tlačna oprema - 7. del: Varnostni sistemi za neogrevano tlačno opremo

General Information

• Status: Published
• Publication Date: 28-May-2002
• Withdrawal Date: 29-Nov-2002
• ICS: 23.020.30 - Pressure vessels, gas cylinders
• Technical Committee: CEN/TC 54 - Unfired pressure vessels
• Drafting Committee: CEN/TC 54/WG 56 - F - Safety systems
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 03-Jun-2014
• Completion Date: 03-Jun-2014
• Directive: 2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: SIST EN 764-7:2002 - Pressure equipment - Part 7: Safety systems for unfired pressure equipment

Relations

• Corrected By: EN 764-7:2002/AC:2006 - Pressure equipment - Part 7: Safety systems for unfired pressure equipment
• Effective Date: 22-Dec-2008
• Corrected By: EN 764-7:2002/AC:2004 - Pressure equipment - Part 7: Safety systems for unfired pressure equipment
• Effective Date: 22-Dec-2008
• Revised: FprEN 764-7 - Pressure equipment - Part 7: Safety systems for unfired pressure equipment
• Effective Date: 19-Jan-2023
• Parent: EN 13445-1:2002 - Unfired pressure vessels - Part 1: General
• Effective Date: 22-Dec-2008

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 764-7:2002
01-november-2002
7ODþQDRSUHPDGHO9DUQRVWQLVLVWHPL]DQHRJUHYDQRWODþQRRSUHPR
Pressure equipment - Part 7: Safety systems for unfired pressure equipment
Druckgeräte - Teil 7: Sicherheitseinrichtungen für unbefeuerte Druckgeräte
Equipements sous pression - Partie 7: Systemes de sécurité pour équipements sous
pression non soumis a la flamme
Ta slovenski standard je istoveten z: EN 764-7:2002
ICS:
23.020.30
SIST EN 764-7:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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EUROPEAN STANDARD
EN 764-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2002
ICS 23.020.30
English version
Pressure equipment - Part 7: Safety systems for unfired
pressure equipment
Equipements sous pression - Partie 7: Systèmes de Druckgeräte - Teil 7: Sicherheitseinrichtungen für
sécurité ppour équipements sous pression non soumis à la unbefeuerte Druckgeräte
flamme
This European Standard was approved by CEN on 29 April 2002.
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,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 764-7:2002 E
worldwide for CEN national Members.

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EN 764-7:2002 (E)
Contents
page
Introduction .5
1 Scope .6
2 Normative references .7
3 Terms and definitions.7
4 Risk consideration.9
4.1 General.9
4.2 Identification of hazards.11
4.3 Solutions.12
5 Limiting devices and systems.12
5.1 General.12
5.2 Design .13
6 Pressure limitation.14
6.1 General.14
6.2 Safety valves, direct loaded and pilot operated .16
6.3 Bursting disc safety devices .17
6.4 Safety Valves & bursting disc safety devices in series or parallel.17
6.5 Controlled safety pressure relief systems (CSPRS) .
...