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  • 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

    Available format(s): 

    Language(s): 

    Published date:  07-06-2012

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

    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.

    General Product Information - (Show below) - (Hide below)

    Committee CT 48
    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Current

    Standards Referencing This Book - (Show below) - (Hide below)

    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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