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  • BSI
    BS 1640-3:1968 Specification for steel butt-welding pipe fittings for the petroleum industry - Wrought carbon and ferritic alloy steel fittings. Metric units
    Edition: 1968
    $316.70
    / user per year

Description of BS 1640-3:1968 1968

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.



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.

Standard NumberBS 1640-3:1968
TitleSpecification for steel butt-welding pipe fittings for the petroleum industry - Wrought carbon and ferritic alloy steel fittings. Metric units
StatusUnder Review
Publication Date1968-03-22
Partially Replaced ByBS EN 10253-2:2007
DescriptorsReducing couplings, Butt joints, SI system (metric), Pipe fittings, Unalloyed steels, Pipe caps, Ferritic steels, Burst tests, Steels, Welded fittings, Test specimens, Pipe tees, Bend couplings, Elbows (pipes), Diameter, Testing conditions, Alloy steels, Heat treatment, Dimensions, Welding, Marking, Thickness, Welded joints, Petroleum technology
ICS75.180.99 Other equipment for petroleum and natural gas industries
CommitteeISE/110
ISBN0 580 00125 3
PublisherBSI
Pages22

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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