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BS 1640-3:1968

Current
Current

The latest, up-to-date edition.

Specification for steel butt-welding pipe fittings for the petroleum industry Wrought carbon and ferritic alloy steel fittings. Metric units
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

03-22-1968

Publisher

British Standards Institution

Co-operating organizations
Foreword
Specification
1 General
1.1 Scope
1.2 Size and size identification
1.3 Pressure ratings
1.4 Materials
1.5 Manufacture
1.6 Heat treatment
2 Dimensions and tolerances
2.1 Dimensions
2.2 Tolerances
3 Workmanship, marking, inspection, testing and
      certification
3.1 Workmanship and finish
3.2 Marking
3.3 Inspection
3.4 Test facilities
3.5 Prototype bursting tests
3.6 Radiographic examination of fittings fabricated by
      fusion welding
3.7 Radiographic technique and acceptance limits
3.8 Impact testing
3.9 Hydrostatic testing
3.10 Certificate
Appendix
A Information to be supplied by the purchaser
Tables
1 Materials and material identification symbols
2 Tolerances
3 Outside diameter and nominal wall thickness of
      steel pipe
4 Dimensions of elbows and return bends
5 Dimensions of 90 deg long radius tangent elbows
6 Dimensions of equal tees
7 Dimensions of reducing tees
8 Dimensions of reducers (concentric and eccentric)
9 Dimensions of caps
10 Dimensions of lap-joint stub-ends
Figures
1 Welding end for wall thicknesses from 4.8 mm to
      22 mm inclusive
2 Welding end for wall thicknesses greater than
      22 mm
3 Typical examples of off-square tolerance 'X'
      checked against reference planes

Dimensions and tolerances, materials, methods of manufacture, pressure/temperature ratings, marking, inspection, tests for seamless and fabricated fittings: 45° long radius elbows, 90° long and short radius elbows, 90° long radius tangent elbows, long and short radius return bends, equal and reducing tees, concentric and eccentric reducers, caps and lap-joint stub ends, of sizes 19 mm to 609.5 mm. Welding-neck flanges not included.

Part 3 of this British Standard specifies requirements for wrought seamless and fabricated carbon and ferritic alloy steel butt-welding pipe fittings for use in the petroleum industry, and is in metric units.

The following types of fittings are provided for:

45° long radius elbows;

90° long and short radius elbows;

90° long radius tangent elbows;

long and short radius return bends;

equal and reducing tees;

concentric and eccentric reducers;

caps;

lap-joint stub ends.

Welding-neck flanges are not included. They are included in BS 15601) and BS 32932).

Attention is drawn to Appendix A, which lists information to be supplied by the purchaser.

Committee
ISE/110
DevelopmentNote
Reviewed and confirmed by BSI, January 2008. (12/2007)
DocumentType
Standard
Pages
22
PublisherName
British Standards Institution
Status
Current
SupersededBy

BS 5306-5.2:1984 Code of practice for fire extinguishing installations and equipment on premises. Halon systems Halon 1211 total flooding systems
BS CP2010-2(1970) : 1970 PIPELINES - PART 2: DESIGN AND CONSTRUCTION OF STEEL PIPELINES IN LAND
BS 5306-5.1(1982) : 1982 FIRE EXTINGUISHING INSTALLATIONS AND EQUIPMENT ON PREMISES - HALON SYSTEMS - HALON 1301 TOTAL FLOODING SYSTEMS
BS MA 18:1973 Specification for salt water piping systems in ships
11/30244843 DC : 0 BS 5306-4:2001+A1 - FIRE EXTINGUISHING INSTALLATIONS AND EQUIPMENT ON PREMISES - PART 4: SPECIFICATION FOR CARBON DIOXIDE SYSTEMS
DEFSTAN 02-357(PT4)/1(2010) : 2010 REQUIREMENTS FOR GASEOUS FIREFIGHTING SYSTEMS FOR MAIN AND AUXILIARY MACHINERY SPACES ON SURFACE SHIPS - PART 4: GENERAL REQUIREMENTS FOR INERT GAS SYSTEMS INCLUDING ELECTRIC/ELECTRONIC SPACES
BS 5306-4:1986 Fire extinguishing installations and equipment on premises Specification for carbon dioxide systems
BS 5306-4(2001) : 2001 FIRE EXTINGUISHING INSTALLATIONS AND EQUIPMENT ON PREMISES - PART 4: SPECIFICATION FOR CARBON DIOXIDE SYSTEMS
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 2971:1991 Specification for class II arc welding of carbon steel pipework for carrying fluids
BS 2633:1987 Specification for Class I arc welding of ferritic steel pipework for carrying fluids
BS 4515:1984 Specification for welding of steel pipelines on land and offshore
BS 5306-4:2001+A1:2012 Fire extinguishing installations and equipment on premises Specification for carbon dioxide systems
BS 853-2:1996 Specification for vessels for use in heating systems Tubular heat exchangers and storage vessels for building and industrial services
BS 2640:1982 Specification for Class II oxy-acetylene welding of carbon steel pipework for carrying fluids
BS 1821:1982 Specification for class I oxy-acetylene welding of ferritic steel pipework for carrying fluids
BS 5306-7:1988 Fire extinguishing installations and equipment on premises Specification for powder systems
I.S. 328:2015/AC1:2015 GAS TRANSMISSION PIPELINES AND PIPELINE INSTALLATIONS (EDITION 4)
EI MODEL CODE SAFE PRACTICE PT7 : 1998 DESIGN, CONSTRUCTION, OPERATION AND MAINTENANCE OF AVIATION FUELLING FACILITIES
I.S. 328:2015 GAS TRANSMISSION PIPELINES AND PIPELINE INSTALLATIONS (EDITION 4)

BS 1501-3:1973 Specification for steels for fired and unfired pressure vessels. Plates. Corrosion and heat resisting steels. Imperial units
BS 3351:1971 Specification for piping systems for petroleum refineries and petrochemical plants
BS 2910:1973 Methods for radiographic examination of fusion welded circumferential butt joints in steel pipes
BS 1501-2:1970 Steels for fired and unfired pressure vessels: plates. Alloy steels: Imperial units
BS 1501-6(1958) : AMD 2000
BS 1510:1958 Steels for use in the chemical, petroleum and allied industries (low temperature supplementary requirements to BS 1501-1506)
BS 1501-1(1964) : LATEST STEEL FOR FIRE AND UNFIRED PRESSURE VESSELS: PLATES - SPECIFICATION FOR CARBON AND CARBON MANGANESE STEELS
BS 3293:1960 Specification for carbon steel pipe flanges (over 24 inches nominal size) for the petroleum industry
BS 2600:1962 Radiographic examination of fusion welded butt joints in steel

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