Name: EN 4556:2003
Brand: CEN

Aerospace series - Pipe coupling 37°, in heat resisting steel - Cap assemblies- Inch series

Published date

02-19-2003

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Required characteristics
  3.1 Configuration - Dimensions - Tolerances - Masses
  3.2 Materials
  3.3 Surface treatment
  3.4 Cap
4 Cap assembly
5 Designation
6 Marking
7 Technical specification

This standard specifies the characteristics of cap assemblies for inch series pipe couplings, 37°, in heat resisting steel, for aerospace applications.Mateable with prEN 4552, prEN 4553 or prEN 4554Nominal pressure : Class D in accordance with ISO 6771

Committee	ASD-STAN
DevelopmentNote	Supersedes PREN 4556. (09/2003)
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Current
Supersedes	PREN 4556 : 200P1

Standards	Relationship
NBN EN 4556 : 2003	Identical
NEN EN 4556 : 2003	Identical
NS EN 4556 : 1ED 2003	Identical
I.S. EN 4556:2003	Identical
PN EN 4556 : 2004	Identical
SN EN 4556 : 2003	Identical
UNI EN 4556 : 2004	Identical
UNE-EN 4556:2003	Identical
BS EN 4556:2003	Identical
NF EN 4556 : 2003	Identical
DIN EN 4556:2004-08	Identical

EN 4551:2014	Aerospace series - Pipe coupling, 37°, in heat resisting steel - Swivel nuts - Inch series
ISO 6771:2007	Aerospace Fluid systems and components Pressure and temperature classifications
EN 2491:2011	Aerospace series - Molybdenum disulphide dry lubricants - Coating methods
EN 4554:2003	Aerospace series - Pipe coupling 37°, spherical, in heat resisting steel - Straight unions, threaded - Inch series
PREN 2786 : 200P1	AEROSPACE SERIES - ELECTROLYTIC SILVER PLATING OF FASTENERS
EN 4553:2003	Aerospace series - Pipe coupling 37°, spherical, in heat resisting steel - Elbow 90° nipples, welded end - Inch series
PREN 3487 : 200P2	AEROSPACE SERIES - STEEL FE-PA3601 (X6CRNITI18-10) - AIR MELTED - SOFTENED - BAR FOR MACHINING - A OR D <= 250 MM - 500 MPA <= R[M] <= 700 MPA
EN 4552:2015	Aerospace series - Pipe coupling 37°, spherical, in heat resisting steel - Straight nipples, welded end - Inch series
EN 2424:2008	Aerospace series - Marking of aerospace products
EN 4550-4:2014	Aerospace series - Pipe coupling, 37° - Design configuration - Inch series - Part 4: Female sealing ends
PREN 3468 : 200P1	AEROSPACE SERIES - STEEL FE-PA13 - SOFTENED - 500 < R[M] <= 700 MPA - FORGINGS - D[E] <= 100 MM
EN 4560:2015	Aerospace series - Pipe coupling 37°, spherical up to 21 000 kPa - Inch series - Technical specification
ISO 3161:1999	Aerospace — UNJ threads — General requirements and limit dimensions