Name: EN ISO 4126-3:2006
Brand: CEN

EN ISO 4126-3:2006

Superseded

Safety devices for protection against excessive pressure - Part 3: Safety valves and bursting disc safety devices in combination (ISO 4126-3:2006)

Superseded date

08-10-2020

Published date

01-03-2006

Publisher

Comite Europeen de Normalisation

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Design of combination
6 Installation of combination
7 Combination performance
8 Determination of combination discharge capacity
   factor, F[d], by testing
9 Derivation of combination discharge capacity factor,
   F[d]
10 Alternative to testing for F[d]
11 Certification of combination discharge capacity
   factor, F[d]
12 Application and use of the certified combination
   discharge capacity factor, F[d]
13 Marking and identification of combination devices
14 Certification
15 Preparation for storage and transport
Annex ZA (informative) - Relationship between this
         International Standard and the Essential
         Requirements of EU Directive 97/23/EC (PED)

ISO 4126-3:2006 specifies the requirements for a product assembled from the in-series combination of safety valves or CSPRS (controlled safety pressure relief systems) according to ISO 4126-1, ISO 4126-4 and ISO 4126-5, and bursting disc safety devices according to ISO 4126-2 installed within no more than five pipe diameters from the valve inlet. It specifies the design, application and marking requirements for such products, which are used to protect pressure vessels, piping or other enclosures from excessive pressure, and which comprise the bursting disc safety device, a safety valve or CSPRS and, where applicable, a short length of connecting pipe or spool piece. In addition, it gives a method for establishing the combination discharge factor used in sizing combinations.

Committee	CEN/TC 69
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Superseded
SupersededBy	EN ISO 4126-3:2020

Standards	Relationship
ISO 4126-3:2006	Identical
NF EN ISO 4126-3 : 2006	Identical
NBN EN ISO 4126-3 : 2006	Identical
NEN EN ISO 4126-3 : 2006	Identical
NS EN ISO 4126-3 : 1ED 2006	Identical
I.S. EN ISO 4126-3:2006	Identical
PN EN ISO 4126-3 : 2006	Identical
SN EN ISO 4126-3 : 2006	Identical
UNI EN ISO 4126-3 : 2006	Identical
UNE-EN ISO 4126-3:2007	Identical
BS EN ISO 4126-3:2006	Identical
ONORM EN ISO 4126-3 : 2006	Identical
DIN EN ISO 4126-3:2006-06	Identical

EN 13480-6:2017	Metallic industrial piping - Part 6: Additional requirements for buried piping
EN 13480-2:2017	Metallic industrial piping - Part 2: Materials
ISO 4126-1:2013	Safety devices for protection against excessive pressure — Part 1: Safety valves
EN 13480-4:2017	Metallic industrial piping - Part 4: Fabrication and installation
EN 13480-1:2017	Metallic industrial piping - Part 1: General
ISO 4126-4:2013	Safety devices for protection against excessive pressure — Part 4: Pilot operated safety valves
EN 13480-3:2017	Metallic industrial piping - Part 3: Design and calculation
EN 764-7:2002/AC:2006	PRESSURE EQUIPMENT - PART 7: SAFETY SYSTEMS FOR UNFIRED PRESSURE EQUIPMENT
CEN/TR 13480-7:2017	Metallic industrial piping - Part 7: Guidance on the use of conformity assessment procedures
ISO 4126-2:2003	Safety devices for protection against excessive pressure Part 2: Bursting disc safety devices
ISO 4126-5:2013	Safety devices for protection against excessive pressure — Part 5: Controlled safety pressure relief systems (CSPRS)
EN 13480-5:2017	Metallic industrial piping - Part 5: Inspection and testing
1997/23/EC : 1997	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
ISO 4126-6:2014	Safety devices for protection against excessive pressure — Part 6: Application, selection and installation of bursting disc safety devices