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DIN EN ISO 8434-1:2008-02

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

METALLIC TUBE CONNECTIONS FOR FLUID POWER AND GENERAL USE - PART 1: 24 DEGREE CONE CONNECTORS
Available format(s)

Hardcopy , PDF

Superseded date

04-16-2020

Published date

01-01-2008

Publisher

German Institute for Standardisation (Deutsches Institut für Normung)

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Materials
   4.1 General
   4.2 Connector bodies
   4.3 Nuts
   4.4 Cutting rings
   4.5 O-rings
5 Pressure/temperature requirements
6 Designation of connectors
7 Requirements for tubes
8 Across-flats dimensions and tolerances
9 Design
   9.1 Connectors
   9.2 Dimensions
   9.3 Passage tolerances
   9.4 Angular tolerances
   9.5 Contour details
   9.6 Ports and stud ends
   9.7 Stud end sealing
10 Screw threads
   10.1 Cone ends and nuts
   10.2 Stud ends (connection ends)
11 Manufacture
   11.1 Construction
   11.2 Workmanship
   11.3 Finish
   11.4 Corners
12 Assembly instruction
13 Procurement information
14 Marking of components
15 Performance and qualification test
   15.1 General
   15.2 Repeated assembly test
   15.3 Proof test
   15.4 Burst pressure test
   15.5 Cyclic endurance (impulse) test
   15.6 Vibration test
   15.7 Leakage (gas) test
   15.8 Overtightening test
16 Identification statement (reference to this part
   of ISO 8434)
National Annex NA (informative) Bibliography
Bibliography

Describes the general and dimensional requirements for 24 degree cone connectors using cutting ring and O-ring seal cone (referred to as DKO) suitable for use with ferrous and non-ferrous tubes with outside diameters from 4 mm to 42 mm inclusive.

DevelopmentNote
Supersedes DIN 3859 E, DIN 3902 E, DIN 3910 E, DIN 3905 E, DIN 3908 E, DIN 3909 E, DIN 3912 E, DIN 3951 E, DIN 3952 E, DIN 3953 E and DIN 3954 E. (07/2002) Together with DIN 3853 E:2001 supersedes DIN 3853 E:1982. Together with DIN 3870 E:2001 supersedes DIN 3870 E:1985. Together with DIN 3901 E:2001 supersedes DIN 3901 E:1987. Together with DIN 3955 E:2001 supersedes DIN 3955 E:1987. (07/2002)
DocumentType
Standard
Pages
55
PublisherName
German Institute for Standardisation (Deutsches Institut für Normung)
Status
Superseded
SupersededBy
Supersedes

DIN 2353:1998-12 NON-SOLDERING COMPRESSION FITTINGS WITH CUTTING RING - COMPLETE FITTINGS AND SURVEY
DIN 3903:2001-04 Non soldering compression fittings with cutting ring - Elbow stud with taper threaded stud end (not for new design)
DIN 3945:2002-04 NON-SOLDERED COMPRESSION FITTINGS - STRAIGHT STUD SWIVEL ADAPTOR WITH 24 DEGREE CONE CONNECTORS WITH O-RING - FOR DESIGN AND TYPE OF COMPRESSION END ACCORDING TO DIN EN ISO 8434-1
DIN 3861:2002-11 NON-SOLDERING COMPRESSION FITTINGS - COMPRESSION RINGS - DESIGN
DIN 3906:2001-04 Non soldering compression fittings with cutting ring - Branch T-stud with taper threaded stud end (not for new design)
DIN 3853:2001-09 NON-SOLDERING AND SOLDERING COMPRESSION FITTINGS - STUD ENDS FOR USE WITH UNION NUT; DESIGN SHEET
DIN 3943:2002-04 NON-SOLDERED COMPRESSION FITTINGS - SWIVEL BRANCH TEES WITH 24 DEGREE CONE CONNECTORS WITH O-RING - ADJUSTABLE, FOR DESIGN AND TYPE OF COMPRESSION END ACCORDING TO DIN EN ISO 8434-1
DIN 3870:2001-09 NON-SOLDERING AND SOLDERING COMPRESSION FITTINGS - UNION NUTS SERIES LL
DIN 3955:2001-09 NON-SOLDERING COMPRESSION FITTINGS WITH CUTTING RING - DOUBLE ENDED STUD ENDS WITH PARALLEL THREADS AND SHAFT FOR STUD ENDS TYPE A
DIN 3942:2002-04 NON-SOLDERED COMPRESSION FITTINGS - SWIVEL ELBOWS WITH 24 DEGREE CONE CONNECTORS WITH O-RING - ADJUSTABLE, FOR DESIGN AND TYPE OF COMPRESSION END ACCORDING TO DIN EN ISO 8434-1
DIN 3944:2002-04 NON-SOLDERED COMPRESSION FITTINGS - L-ADAPTORS WITH 24 DEGREE CONE CONNECTORS AND O-RING - ADJUSTABLE, FOR DESIGN AND TYPE OF COMPRESSION END ACCORDING TO DIN EN ISO 8434-1

ISO 1179-1:2013 Connections for general use and fluid power — Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing — Part 1: Threaded ports
ISO 5598:2008 Fluid power systems and components Vocabulary
ISO 4399:1995 Fluid power systems and components Connectors and associated components Nominal pressures
ISO 4759-1:2000 Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C
ISO 12151-2:2003 Connections for hydraulic fluid power and general use — Hose fittings — Part 2: Hose fittings with ISO 8434-1 and ISO 8434-4 24 degree cone connector ends with O-rings
ISO 4397:2011 Fluid power connectors and associated components — Nominal outside diameters of tubes and nominal hose sizes
DIN EN ISO 19879 E : 2011 METALLIC TUBE CONNECTIONS FOR FLUID POWER AND GENERAL USE - TEST METHODS FOR HYDRAULIC FLUID POWER CONNECTIONS
ISO 9974-1:1996 Connections for general use and fluid power Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing Part 1: Threaded ports
ISO 9974-3:1996 Connections for general use and fluid power — Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing — Part 3: Stud ends with metal-to-metal sealing (type B)
DIN ISO 5598:2004-08 (Draft) FLUID POWER SYSTEMS AND COMPONENTS - VOCABULARY
ISO 9974-2:1996 Connections for general use and fluid power — Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing — Part 2: Stud ends with elastomeric sealing (type E)
ISO 3305:1985 Plain end welded precision steel tubes — Technical conditions for delivery
ISO 1179-4:2007 Connections for general use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing Part 4: Stud ends for general use only with metal-to-metal sealing (type B)
ISO 6149-3:2006 Connections for hydraulic fluid power and general use Ports and stud ends with ISO 261 metric threads and O-ring sealing Part 3: Dimensions, design, test methods and requirements for light-duty (L series) stud ends
ISO 19879:2010 Metallic tube connections for fluid power and general use Test methods for hydraulic fluid power connections
ISO 6149-2:2006 Connections for hydraulic fluid power and general use Ports and stud ends with ISO 261 metric threads and O-ring sealing Part 2: Dimensions, design, test methods and requirements for heavy-duty (S series) stud ends
ISO 286-1:2010 Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 1: Basis of tolerances, deviations and fits
ISO 6149-1:2006 Connections for hydraulic fluid power and general use Ports and stud ends with ISO 261 metric threads and O-ring sealing Part 1: Ports with truncated housing for O-ring seal
DIN ISO 12151-2 E : 2004 CONNECTIONS FOR HYDRAULIC FLUID POWER AND GENERAL USE - HOSE FITTINGS - PART 2: HOSE FITTINGS WITH ISO 8434-1 AND ISO 8434-4 24 DEGREE CONE CONNECTOR ENDS WITH O-RINGS
DIN EN ISO 9974-3:2000-09 Connections for general use and fluid power - Ports and studs ends with ISO 261 threads with elastomeric or metal-to-metal sealing - Part 3: Stud ends with metal-to-metal sealing (type B) (ISO 9974-3:1996); German version EN ISO 9974-3:2000
ISO 3304:1985 Plain end seamless precision steel tubes — Technical conditions for delivery
ISO 286-2:2010 Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
ISO 9227:2017 Corrosion tests in artificial atmospheres — Salt spray tests
ISO 261:1998 ISO general purpose metric screw threads General plan
ISO 965-1:2013 ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data
ISO 228-2:1987 Pipe threads where pressure-tight joints are not made on the threads Part 2: Verification by means of limit gauges
ISO 3601-3:2005 Fluid power systems O-rings Part 3: Quality acceptance criteria
ISO 48:2010 Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD)
ISO 1179-2:2013 Connections for general use and fluid power — Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing — Part 2: Heavy-duty (S series) and light-duty (L series) stud ends with elastomeric sealing (type E)
ISO 228-1:2000 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation
ISO 1179-3:2007 Connections for general use and fluid power Ports and stud ends with ISO 228-1 threads with elastomeric or metal-to-metal sealing Part 3: Light-duty (L series) stud ends with sealing by O-ring with retaining ring (types G and H)
ISO 1127:1992 Stainless steel tubes Dimensions, tolerances and conventional masses per unit length

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