Skip to content
Please enter a keyword to search

  • BS 1560-3.1:1989

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    View superseded by

    Circular flanges for pipes, valves and fittings (Class designated). Steel, cast iron and copper alloy flanges Specification for steel flanges

    Available format(s):  Hardcopy, PDF

    Superseded date:  30-11-2004

    Language(s):  English

    Published date:  30-06-1989

    Publisher:  British Standards Institution

    Add To Cart

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

    Foreword
    Committees responsible
    Specification
    1 Scope
    2 Ranges of nominal sizes
    3 Class designations and pressure/temperature ratings
    4 Materials
    5 Bolting
    6 Repairs
    7 Dimensions
    8 Flange facings
    9 Spot facing or back facing of flanges
    10 Tolerances
    11 Marking
    Appendices
    A Information to be supplied by the purchaser
    B Application and installation
    C Determination of bolt lengths for lapped-type joints
    D Recommended bolt lengths for flanges other than
        lapped-type
    E Recommendations for weld ends of weld-neck flanges
    F Dimensions of seamless and welded steel pipes
    G Use of metric bolting in lieu of inch bolting
    H Comparison of flange descriptions in BS 1560 : Part
        2 : 1970 with descriptions used in this section of
        BS 1560
    Tables
    1 Types of steel flange
    2 Synoptic table
    3 Materials
    4 Reducing threaded flanges Classes 150 to 2500
    5 Facing dimensions for flanges other than ring-joint,
        classes 150 to 2500
    6 Dimensions of ring-joint facings (all Classes)
    7 Surface finish for facings A, B, E, and F
    8 Surface finish for facings C, D and J
    9 Dimensions of Class 150 flanges
    10 Dimensions of Class 300 flanges
    11 Dimensions of Class 600 flanges
    12 Dimensions of Class 900 flanges
    13 Dimensions of Class 1500 flanges
    14 Dimensions of Class 2500 flanges
    15 Tolerances
    16 Class 150: pressure/temperature ratings
    17 Class 300: pressure/temperature ratings
    18 Class 600: pressure/temperature ratings
    19 Class 900: pressure/temperature ratings
    20 Class 1500: pressure/temperature ratings
    21 Class 2500: pressure/temperature ratings
    22 Minimum fillet radius at the hub after back facing
    23 Determination of studbolt lengths for lapped-type
        joints
    24 Bolting for flanges, Class 150 to 2500
    25 Dimensions of seamless and welded steel pipe
    26 Nominal bolt diameters
    27 Inch/metric bolt comparisons
    28 Steel flange descriptions and code numbers specified
        in BS 1560 : Section 3.1 : 1989 and BS 1560 : Part 2
        : 1970
    Figures
    1 Flange codes
    2 Facings of types A to F and J
    3 Reducing threaded flanges, Classes 150 to 2500
    4 Flange facings, Classes 150 and 300 only, for
        than lapped-type joints
    5 Flange facings, Classes 600 to 2500, for other than
        lapped-type joints
    6 Facings for lapped-type joints
    7 Dimensions of ring-joint facings (all Classes)
    8 Dimensions of Class 150 flanges
    9 Dimensions of Class 300 flanges
    10 Dimensions of Class 600 flanges
    11 Dimensions of Class 900 flanges
    12 Dimensions of Class 1500 flanges
    13 Dimensions of Class 2500 flanges
    14 Minimum fillet radius at the hub after back facing
    15 Bolting for flanges, Class 150 to Class 2500
    16 Recommended bevel angles for welding

    Abstract - (Show below) - (Hide below)

    Specifies Class 150 to Class 2500 and sizes up to 24 in. Requirements facings, dimensions, tolerances, threading, bolt sizes, marking, materials for bolting and flange materials with associated pressure/temperature ratings.

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

    Committee PSE/15
    Development Note Supersedes BS 1560-2(1970), 85/78241 DC & 92/77111 DC (06/2004)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 7438:1991 Specification for steel and copper alloy wafer check valves, single-disk, spring-loaded type
    BS 1560-3.2:1989 Circular flanges for pipes, valves and fittings (Class designated). Steel, cast iron and copper alloy flanges Specification for cast iron flanges
    DEFSTAN 02-313/1(2000) : 2000 AMD 1 2002 DIESEL ENGINES FOR MARINE PROPULSION AND AUXILIARY MACHINERY
    BS 4504-3.1:1989 Circular flanges for pipes, valves and fittings (PN designated). Steel, cast iron and copper alloy flanges Specification for steel flanges
    BS 7777-4:1993 Flat-bottomed, vertical, cylindrical storage tanks for low temperature service Specification for the design and construction of single containment tanks for the storage of liquid oxygen, liquid nitrogen and liquid argon
    BS 4865-4:1989 Dimensions of gaskets for flanges to BS 4504 Specification for corrugated, flat or grooved metallic and filled metallic gaskets for use with steel flanges
    BS 4865-1:1989 Dimensions of gaskets for flanges to BS 4504 Specification for non-metallic flat gaskets (including gaskets for flanges to BS 4772)
    BS 2790:1992 Specification for design and manufacture of shell boilers of welded construction
    BS 1894:1992 Specification for design and manufacture of electric boilers of welded construction
    BS 5353:1989 Specification for steel plug valves
    BS 4677:1984 Specification for arc welding of austenitic stainless steel pipework for carrying fluids
    BS 5306-5.1:1992 Code of practice for fire extinguishing installations and equipment on premises. Halon systems Specification for halon 1301 total flooding systems
    BS 1113:1992 Specification for design and manufacture of water-tube steam generating plant (including superheaters, reheaters and steel tube economizers)
    BS 5169:1992 Specification for fusion welded steel air receivers
    BS 4865-2:1989 Dimensions of gaskets for flanges to BS 4504 Specification for spiral wound gaskets for use with steel flanges
    BS 6501-1:1991 Flexible metallic hose assemblies Specification for corrugated hose assemblies
    BS 2971:1991 Specification for class II arc welding of carbon steel pipework for carrying fluids
    BS PD5500(2006) : 2006 SPECIFICATION FOR UNFIRED FUSION WELDED PRESSURE VESSELS
    BS 2633:1987 Specification for Class I arc welding of ferritic steel pipework for carrying fluids
    BS 806:1993 Specification for design and construction of ferrous piping installations for and in connection with land boilers
    BS 2080:1989 Specification for face-to-face, centre-to-face, end-to-end and centre-to-end dimensions of valves
    BS 4089:1989 Specification for hoses and hose assemblies for liquefied petroleum gas
    BS 5157:1989 Specification for steel gate (parallel slide) valves
    BS 3381:1989 Specification for spiral wound gaskets for steel flanges to BS 1560
    BS 853-2:1996 Specification for vessels for use in heating systems Tubular heat exchangers and storage vessels for building and industrial services
    BS 7076-2:1989 Dimensions of gaskets for flanges to BS 1560 Specification for metallic ring-joint gaskets for use with steel flanges
    BS 7076-4:1989 Dimensions of gaskets for flanges to BS 1560 Specification for corrugated, flat or grooved metallic and filled metallic gaskets
    BS 7777-2:1993 Flat-bottomed, vertical, cylindrical storage tanks for low temperature service Specification for the design and construction of single, double and full containment metal tanks for the storage of liquefied gas at temperatures down to -165°C
    EI MODEL CODE SAFE PRACTICE PT7 : 1998 DESIGN, CONSTRUCTION, OPERATION AND MAINTENANCE OF AVIATION FUELLING FACILITIES
    BS 534:1990 Specification for steel pipes, joints and specials for water and sewage
    BS 7076-3:1989 Dimensions of gaskets for flanges to BS 1560 Specification for non-metallic envelope gaskets
    BS 4865-3:1989 Dimensions of gaskets for flanges to BS 4504 Specification for non-metallic envelope gaskets
    BS 8010-3:1993 Code of practice for pipelines Pipelines subsea: design, construction and installation
    BS 7076-1:1989 Dimensions of gaskets for flanges to BS 1560 Specification for non-metallic flat gaskets

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

    BS 7076-4:1989 Dimensions of gaskets for flanges to BS 1560 Specification for corrugated, flat or grooved metallic and filled metallic gaskets
    BS 4504-3.1:1989 Circular flanges for pipes, valves and fittings (PN designated). Steel, cast iron and copper alloy flanges Specification for steel flanges
    ASTM A 537/A537M : 2013 Standard Specification for Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel
    BS 3643-1:1981 ISO metric screw threads Principles and basic data
    BS 3351:1971 Specification for piping systems for petroleum refineries and petrochemical plants
    BS 5135:1984 Specification for arc welding of carbon and carbon manganese steels
    ASTM A 516/A516M : 2017 : REDLINE Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service
    BS 1769:1951 Specification. Unified black hexagon bolts, screws, nuts (UNC & UNF threads). Heavy series
    ASME B31.3:2016 PROCESS PIPING
    BS 7076-3:1989 Dimensions of gaskets for flanges to BS 1560 Specification for non-metallic envelope gaskets
    BS 7076-2:1989 Dimensions of gaskets for flanges to BS 1560 Specification for metallic ring-joint gaskets for use with steel flanges
    ASME B1.20.1 : 2013(R2018) PIPE THREADS, GENERAL PURPOSE (INCH)
    BS 1501-2:1988 Steels for pressure purposes Specification for alloy steels: plates
    ASME B36.10M : 2015 WELDED AND SEAMLESS WROUGHT STEEL PIPE
    BS 1600:1991 Specification for dimensions of steel pipe for the petroleum industry
    ASTM A 217/A217M : 2014 : REDLINE Standard Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service
    BS 1503:1989 Specification for steel forgings for pressure purposes
    BS 4504-3.2(1989) : 1989 CIRCULAR FLANGES FOR PIPES, VALVES & FITTINGS (PN DESIGNATED) - STEEL, CAST IRON & COPPER ALLOY FLANGES - SPECIFICATION FOR CAST IRON FLANGES
    ASME B16.5 : 2017 PIPE FLANGES AND FLANGED FITTINGS: NPS 1/2 THROUGH NPS 24 METRIC/INCH STANDARD
    ASME B16.9 : 2012 FACTORY-MADE WROUGHT BUTTWELDING FITTINGS
    ASTM A 515/A515M : 2017 : REDLINE Standard Specification for Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature Service
    ASTM A 203/A203M : 2017 : REDLINE Standard Specification for Pressure Vessel Plates, Alloy Steel, Nickel
    BS 3410:1961 Specification for metal washers for general engineering purposes
    BS 4504-3.3:1989 Circular flanges for pipes, valves and fittings (PN designated) Specification for copper alloy and composite flanges
    BS 7076-1:1989 Dimensions of gaskets for flanges to BS 1560 Specification for non-metallic flat gaskets
    BS 1504:1976 Specification for steel castings for pressure purposes
    View more information

    • 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, flexibile and cost effective