UNI ISO 8434-3 : 2012
Current
The latest, up-to-date edition.
METALLIC TUBE CONNECTIONS FOR FLUID POWER AND GENERAL USE - PART 3: O-RING FACE SEAL CONNECTORS
06-07-2012
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Materials
5 Pressure/temperature requirements
6 Designation of connectors
7 Requirements for tubes
8 Across-flats dimensions and tolerances
9 Design
10 Screw threads
11 Manufacture
12 Assembly instruction
13 Procurement information
14 Marking of components
15 Performance and qualification test
16 Identification statement (reference to this part of ISO 8434)
Annex A (normative) - Specification for 1-14 UNS inch screw
threads - Basic dimensions
Annex B (normative) - Reduction factors for reducing connectors
Annex C (normative) - Formed tube connection for ISO 8434-3
O-ring face seal connectors
Annex D (informative) - O-ring face seal tube and hose
connections with metric or inch tubing or swivel
hose connector
Annex E (informative) - Typical connections with O-ring face
seal connectors
Annex F (informative) - Assembly instructions for adjustable
connectors in ISO 6149-1 ports
ISO 8434-3:2005 specifies the general and dimensional requirements for the design and performance of O-Ring face seal connectors made of steel for tube outside diameters or hose inside diameters of 6 mm through 38 mm, inclusive.
| Committee |
CT 48
|
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Current
|
| Standards | Relationship |
| ISO 8434-3:2005 | Identical |
| ISO 68-2:1998 | ISO general purpose screw threads — Basic profile — Part 2: Inch screw threads |
| ISO 8434-1:2007 | Metallic tube connections for fluid power and general use Part 1: 24 degree cone connectors |
| ISO 5598:2008 | Fluid power systems and components Vocabulary |
| ISO 4759-1:2000 | Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C |
| ISO 3305:1985 | Plain end welded precision steel tubes — Technical conditions for delivery |
| ISO 8434-2:2007 | Metallic tube connections for fluid power and general use — Part 2: 37 degree flared connectors |
| ISO 5864:1993 | ISO inch screw threads Allowances and tolerances |
| 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 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 |
| ISO 3304:1985 | Plain end seamless precision steel tubes — Technical conditions for delivery |
| ISO 9227:2017 | Corrosion tests in artificial atmospheres — Salt spray tests |
| ISO 261:1998 | ISO general purpose metric screw threads — General plan |
| ISO 12151-1:2010 | Connections for hydraulic fluid power and general use — Hose fittings — Part 1: Hose fittings with ISO 8434-3 O-ring face seal ends |
| 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 263:1973 | ISO inch screw threads General plan and selection for screws, bolts and nuts Diameter range 0,06 to 6 in |
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