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BS 806:1993

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Specification for design and construction of ferrous piping installations for and in connection with land boilers
Available format(s)

Hardcopy , PDF

Superseded date

04-07-2002

Language(s)

English

Published date

15-09-1993

Committees responsible
Summary of pages
Foreword
Section one. General
1.1 Scope
1.2 Interpretation
1.3 Definitions and prime symbols
1.4 Information and requirements to be agreed
     and to be documented
Section two. Design pressures and temperatures
2.1 General
2.2 Design pressure for steam piping
2.3 Design temperature for steam piping
2.4 Design conditions for feed piping
2.5 Design pressure for blowdown and drain systems
2.6 Design temperature for blowdown and drain systems
2.7 Design conditions for safety valve discharge
     piping
2.8 Design lifetime
Section three. Materials and maximum permissible design
pressures, temperatures and stresses
3.1 Materials
3.2 Maximum permissible design pressures, temperatures
     and stresses
Section four. Design
4.1 General
4.2 Thickness of wrought steel straight pipes
4.3 Wrought steel bent pipes
4.4 Gusseted bends
4.5 Thickness of cast steel straight pipes and bends
4.6 Thickness of cast iron pipes and fittings
4.7 Joints
4.8 Branches
4.9 Safety valve discharge piping and safety valve
     mounting
4.10 Expansion allowance
4.11 Flexibility
4.12 Drainage
4.13 Pipework supports
Section five. Construction and workmanship
5.1 General
5.2 Heat treatment and final condition
5.3 Welding
5.4 Attachment of branches
5.5 Attachment of flanges
5.6 Ovality of bend pipes
5.7 Gusseted bends
5.8 Condition of pipes
5.9 Marking of pipes
5.10 Erection of pipework
Section six. Inspection and testing
6.1 Tests on pipes and fittings
6.2 Hydraulic tests on pipe systems after erection
6.3 Visual and non-destructive examination
6.4 Identification of materials
Appendices
A Pressures in safety valve discharge piping
B Derivation of material nominal design stresses
C Examples of branch pipe design
D Coefficient of linear expansion for pipes
E Recommended proof and rupture data in connection with
  flexibility analysis
F Worked example of stress calculation in a sectionalized
  pipe system
G Flexibility flow chart
H Alternative methods for evaluation of stresses in
  branches subject to moment load
J Branch connections - Design by analysis

Describes requirements for the design and construction, including materials and design parameters, workmanship, inspection and testing, for ferrous pipes and pipping installations for and in connection with land boilers.

Committee
PVE/10
DevelopmentNote
Supersedes BS 806(1990). (11/2007)
DocumentType
Standard
Pages
162
PublisherName
British Standards Institution
Status
Superseded
SupersededBy

BS 10:1962 Specification for flanges and bolting for pipes, valves, and fittings
BS 3920-1:1973 Derivation and verification of elevated temperature properties for steel products for pressure purposes Method for deriving the minimum elevated temperature yield or proof stress properties when data on a minimum of 50 casts are available
BS 1740:1965 Specification for pipe fittings iron and steel (screwed BSP thread).
BS 3923-1:1986 Methods for ultrasonic examination of welds Methods for manual examination of fusion welds in ferritic steels
BS 6443:1984 Method for penetrant flaw detection
BS 2640:1982 Specification for Class II oxy-acetylene welding of carbon steel pipework for carrying fluids
ASTM E 446 : 2015 : REDLINE Standard Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness
ASTM E 186 : 2015 : REDLINE Standard Reference Radiographs for Heavy-Walled (2 to 4<fraction><num>1</num><den>2</den></fraction > in. (50.8 to 114 mm)) Steel Castings
BS 4622:1970 Specification for grey iron pipes and fittings
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 1821:1982 Specification for class I oxy-acetylene welding of ferritic steel pipework for carrying fluids
BS 3605-1:1991 Austenitic stainless steel pipes and tubes for pressure purposes Specification for seamless tubes
BS 1560-3.1:1989 Circular flanges for pipes, valves and fittings (Class designated). Steel, cast iron and copper alloy flanges Specification for steel flanges
BS 3600:1997 Specification for dimensions and masses per unit length of welded and seamless steel pipes and tubes for pressure purposes
BS 1965-1:1963 Specification for butt-welding pipe fittings for pressure purposes Carbon steel
BS 3688-1:1963 Methods for mechanical testing of metals at elevated temperatures. Tensile testing
BS 5500:1997 SPECIFICATION FOR UNFIRED FUSION WELDED PRESSURE VESSELS
BS 1387:1985 Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads
BS 3604-2:1991 Steel pipes and tubes for pressure purposes: ferritic alloy steel with specified elevated temperature properties. Specification for longitudinally arc welded tubes
BS 759-1:1984 Valves, gauges and other safety fittings for application to boilers and to piping installations for and in connection with boilers Specification for valves, mountings and fittings
BS 2789:1985 Specification for spheroidal graphite or nodular graphite cast iron
BS 7339:1990 Code of practice for supplementary checking of metallic materials of construction in pressurized systems
BS 6072:1981 Method for magnetic particle flaw detection
BS 6759-1:1984 Safety valves Specification for safety valves for steam and hot water
BS 3602-1:1987 Specification for steel pipes and tubes for pressure purposes: carbon and carbon manganese steel with specified elevated temperature properties Specification for seamless and electric resistance welded including induction welded tubes
BS 3604-1:1990 Steel pipes and tubes for pressure purposes: ferritic alloy steel with specified elevated temperature properties Specification for seamless and electric resistance welded tubes
BS 1503:1989 Specification for steel forgings for pressure purposes
ASTM E 280 : 2015 : REDLINE Standard Reference Radiographs for Heavy-Walled (4<fraction><num>1</num><den>2</den></fraction > to 12 in. (114 to 305 mm)) Steel Castings
BS 5046:1974 Method for the estimation of equivalent diameters in the heat treatment of steel
BS EN 10002-5:1992 Tensile testing of metallic materials Method of test at elevated temperatures
BS 6129-1:1981 Code of practice for the selection and application of bellows expansion joints for use in pressure systems. Metallic bellows expansion joints
BS 3920-2:1986 Derivation and verification of elevated temperature properties for steel products for pressure purposes Method for deriving the elevated temperature yield or proof stress properties when data are limited
BS 7079-A1(1989) : 1989 PREPARATION OF STEEL SUBSTRATES BEFORE APPLICATION OF PAINTS AND RELATED PRODUCTS - VISUAL ASSESSMENT OF SURFACE CLEANLINESS - PART 1: SPECIFICATION FOR RUST GRADES AND PREPARATION GRADES OF UNCOATED STEEL SUBSTRATES AND OF STEEL SUBSTRATES AFTER OVERALL REMOVAL OF PREVIOUS COATINGS
BS EN 10002-1:2001 Tensile testing of metallic materials Method of test at ambient temperature
PD 6510:1983 A review of the present state of the art of assessing remanent life of pressure vessels and pressurized systems designed for high temperature service
BS 1504:1976 Specification for steel castings for pressure purposes

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