BS EN 14620-2:2006 - Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0°C and -165°C. Metallic components – BSI British St

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BS EN 14620-2:2006

Design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0°C and -165°C. Metallic components

Status : Current   Published : December 2006

Format
PDF

Format
HARDCOPY

BS EN 14620-2:2006 specifies the general requirements for the materials, design, construction and installation of the metallic components of refrigerated liquefied gas storage tanks.

This European Standard deals with the design and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0 °C and –165 °C.

Contents include:

  • Normative references
  • Terms and definitions
  • Materials
  • Temperatures
  • Primary and secondary liquid container
  • Product and steel class
  • Minimum Charpy V-notch impact test energy
  • Vapour container/outer tank
  • Steel for vapour container/outer tank.
  • Other components
  • Design 13
  • Design theory
  • Determination of the maximum allowable design stress
  • Partial load and material factors for types I, II, III and IV steel
  • Primary and secondary liquid container
  • Typical bottom layout
  • Minimum shell plate thickness
  • Design flowchart for membranes
  • k factors for S-N curves (normal distribution assumed)
  • Welding procedures
  • WPAR requirements
  • Impact testing
  • 9 % Nickel steel
  • Welders and welding operators
  • Production test plates
  • Welding
  • Tack and temporary welds
  • Atmospheric conditions
  • Preheating
  • Post-weld heat treatment
  • Holding times at lower temperatures
  • Inspection
  • Qualification of NDE personnel
  • Inspection procedures
  • Type of inspections
  • Weld inspections of primary and secondary liquid container
  • Extent of radiographic/ultrasonic examination of shell welds of primary and secondary liquid container
  • Inspection of vapour barrier/liner
  • Vapour container (outer tank)
  • Typical shell-roof compression areas
  • Minimum size of top corner ring
  • Suspended roof
  • Nozzles
  • Typical roof nozzle with thermal distance piece
  • Primary and secondary containment, bottom connections
  • Connections between containers
  • Other details
  • Fabrication
  • Handling of materials
  • Plate preparation and tolerances
  • Tolerances
  • Radius tolerances
  • Maximum differences between the design and the as built profile
  • Tolerance limits on local deformation in welds
  • Outward and inward peaking
  • Gauge for measuring peaking
  • Misalignment at vertical joints
  • Roof 42
  • Temporary attachments
  • Extent of radiographic and ultrasonic examination of shell plate welds of vapour containers
  • Visual inspection
  • Dye penetrant examination
  • Magnetic particle examination
  • Vacuum box examination
  • Ammonia tightness test
  • Soap bubble examination
  • Radiographic examination
  • Ultrasonic examination
  • Acceptance criteria
  • Unacceptable defects in horizontal welds
  • Acceptable thinning after grinding
  • Actions on membrane
  • Static action
  • Cyclic action
  • Accidental action
  • Determination of the load and fatigue curves for membrane
  • Flowchart for membranes
  • Bibliography

BS EN 14620-2:2006 replaces BS 7777-2:1993 which has been withdrawn.




Standard NumberBS EN 14620-2:2006
TitleDesign and manufacture of site built, vertical, cylindrical, flat-bottomed steel tanks for the storage of refrigerated, liquefied gases with operating temperatures between 0°C and -165°C. Metallic components
StatusCurrent
Publication Date29 December 2006
Cross ReferencesEN 287-1, EN 462-1, EN 462-2, EN 473, EN 571-1, EN 584-1, EN 584-2, EN 875, EN 970, EN 1011-2, EN 1092-1:2001, EN 1290, EN 1418, EN 1435:1997, EN 1515-1:1999, EN 1593, EN 1712:1997, EN 1714:1997, EN 1759-1:2004, EN 1993-1-1, ENV 1993-1-6, ENV 1993-4-2:1999, EN 1994-1-1, EN 10025:2004, EN 10029:1991, EN 10045-1, EN 10160:1999, EN 10204:2004, EN 10216-1, EN 10216-2, EN 10216-3, EN 10216-4, EN 10217-1, EN 10217-2, EN 10217-3, EN 10217-4, EN 10217-5, EN 10217-6, EN 10220, EN 12062:1997, EN 14015:2004, EN 14620-1:2006, EN ISO 5817:2003, ISO 5817:2003, EN ISO 15607:2003, ISO 15607:2003, EN ISO 15609-1:2004, ISO 15609-1:2004, EN ISO 15614-1:2004, ISO 15614-1:2004, ISO 261, ISO 965-2:1998, API 620:2004, EN 444, EN 1515-2, EN 10028-3, EN 10028-4, EN 10088-1, EN 10088-2, EN 14620-3, EN 14620-4, EN 14620-5, EN ISO 6520-1, ISO 6520-1:1998, ASTM B 619, ASTM B 622, NF A09-106, AISI Steel plate engineering data. Volume 2:1992, ASME Code Case N284-1, Class MC Section III, Division 1, ASME Code Case N2286, Section VIII, Divisions 1 and 2
ReplacesBS 7777-2:1993
International RelationshipsEN 14620-2:2006
Draft Superseded By03/105149 DC
DescriptorsTanks (containers), Bulk storage containers, Steels, Vertical, Cylindrical shape, Containers, Pressure vessels, Gas pressure vessels, Liquefied gases, Refrigeration, Low temperatures, Bottom, Flat (shape), Structural design, Mathematical calculations, Strength of materials, Classification systems, Sheet materials, Thickness, Shell structures, Double-skinned pressure vessels, Membranes, Stiffeners, Welded joints, Inspection, Non-destructive testing
ICS23.020.10
Title in FrenchConception et fabrication de reservoirs en acier a fond plat, verticaux, cylindriques, construits sur site, destines au stockage des gaz refrigeres, liquefies, dont les temperatures de service sont comprises entre 0°C et -165°C. Constituants metalliques
Title in GermanAuslegung und Herstellung standortgefertigter, stehender, zylindrischer Flachboden-Stahltanks fuer die Lagerung von tiefkalt verfl uessigten Gasen bei Betriebstemperaturen zwischen 0°C und -165°C. Metallische Bauteile
CommitteePVE/15
ISBN0 580 49776 3
PublisherBSI
FormatA4
DeliveryYes
Pages60
File Size5.434 MB
Price£204.00


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