Name: UNI EN ISO 4126-4 : 2013
Brand: UNI

SAFETY DEVICES FOR PROTECTION AGAINST EXCESSIVE PRESSURE - PART 4: PILOT-OPERATED SAFETY VALVES

Published date

19-09-2013

Publisher

Ente Nazionale Italiano di Unificazione (UNI)

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Design
6 Production testing
7 Type testing
8 Determination of pilot operated safety valve
   performance
9 Sizing of pilot operated safety valves
10 Marking and sealing
Bibliography
Annex ZA (informative) - Relationship between this
         International Standard and the Essential
         Requirements of EU Directive 97/23/EC (PED)

Defines general requirements for pilot operated safety valves, irrespective of the fluid for which they are designed.

DocumentType	Standard
PublisherName	Ente Nazionale Italiano di Unificazione (UNI)
Status	Current
Supersedes	UNI EN ISO 4126-4 : 2006

Standards	Relationship
DIN EN ISO 4126-4:2013-12	Identical
SN EN ISO 4126-4 : 2013	Identical
NEN EN ISO 4126-4 : 2013	Identical
NS EN ISO 4126-4 : 2013	Identical
EN ISO 4126-4:2013	Identical
I.S. EN ISO 4126-4:2013	Identical
UNE-EN ISO 4126-4:2014	Identical
NF EN ISO 4126-4 : 2013	Identical
BS EN ISO 4126-4:2013	Identical
NBN EN ISO 4126-4 : 2013	Identical
ISO 4126-4:2013	Identical

UNI/TR 11507 : 2013	MAINTENANCE OF DEVICES FOR DIRECT PRESSURE LIMITATION (SAFETY VALVES)
UNI/TS 11325-6 : 2014	PRESSURE EQUIPMENT - PUTTING INTO SERVICE AND USE OF PRESSURE EQUIPMENT AND ASSEMBLIES - PART 6: PUTTING INTO SERVICE OF PRESSURE EQUIPMENT AND ASSEMBLIES

ISO 4126-7:2013	Safety devices for protection against excessive pressure — Part 7: Common data
ISO 6708:1995	Pipework components Definition and selection of DN (nominal size)
ASME B16.34 : 2017	VALVES - FLANGED, THREADED, AND WELDING END
API 527 : 2014	SEAT TIGHTNESS OF PRESSURE RELIEF VALVES

View more information

Sorry this product is not available in your region.

Access your standards online with a subscription

Features

Simple online access to standards, technical information and regulations.
Critical updates of standards and customisable alerts and notifications.
Multi-user online standards collection: secure, flexible and cost effective.

Learn more on subscription solutions

Get in touch with us

UNI EN ISO 4126-4 : 2013

SAFETY DEVICES FOR PROTECTION AGAINST EXCESSIVE PRESSURE - PART 4: PILOT-OPERATED SAFETY VALVES

Table of Contents

Abstract

General Product Information

International Equivalents

Standards Referenced By This Book

Standards Referencing This Book

Category

Subcategory