BS EN 14620-1:2006 - 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. General – BSI British Standards

BS EN 14620-1:2006

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. General

Status : Current, Under review   Published : December 2006

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BS EN 14620-1 is a European Standard that provides the specification for vertical, cylindrical tanks, built on site, above ground and of which the primary liquid container is made of steel. The secondary container, if applicable, may be of steel or of concrete or a combination of both. An inner tank made only of pre-stressed concrete is excluded from the scope this standard.

The standard specifies principles and application rules for the structural design of the “containment” during construction, testing, commissioning, operation (accidental included), and decommissioning. It does not address the requirements for ancillary equipment such as pumps, pumpwells, valves, piping, instrumentation, staircases etc. unless they can affect the structural design of the tank.

It is applicable to storage tanks designed to store products, having an atmospheric boiling point below ambient temperature, in a dual phase, i.e. liquid and vapour. The equilibrium between liquid and vapour phases being maintained by cooling down the product to a temperature equal to, or just below, its atmospheric boiling point in combination with a slight overpressure in the storage tank.

The maximum design pressure of the tanks covered by this European Standard is limited to 500 mbar. For higher pressures, reference can be made to BS EN 13445, Parts 1 to 5.

The operating range of the gasses to be stored is between 0 °C and –165 °C. The tanks for the storage of liquefied oxygen, nitrogen and argon are excluded.

The tanks are used to store large volumes of hydrocarbon products and ammonia with low temperature boiling points, generally called “Refrigerated Liquefied Gases” (RLGs). Typical products stored in the tanks are: methane, ethane, propane, butane, ethylene, propylene and butadiene. This range includes the liquefied natural gases (LNGs) and liquid petroleum gases (LPGs).

Properties of the gases are also included.

The requirements of this standard cannot cover all details of design and construction because of the variety of sizes and configurations that may be employed. Where complete requirements for a specific design are not provided, the intention is for the designer, subject to approval of the purchaser's authorized representative, to provide design and details that are as safe as those laid out in this European Standard.

Part 1 of BS EN 14620 specifies general requirements for the tank concept, selection and general design considerations

Contents include:

  • Normative references
  • Terms and definitions
  • Concept selection
  • Examples of full containment tanks
  • Example of membrane tank
  • Risk assessment
  • Quality assurance and quality control
  • Health, safety and environment plan
  • General design considerations
  • Protection systems
  • Types of tank
  • Examples of single containment tanks
  • Examples of double containment tanks
  • Actions (loadings)
  • Inspection and maintenance
  • Physical properties of gases
  • Physical properties of pure gases
  • Design information
  • Seismic analysis
  • Tank heating system

BS EN 14620-1:2006 replaces BS 7777-1:1993 which has been withdrawn.




Standard NumberBS EN 14620-1:2006
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. General
StatusCurrent, Under review
Publication Date29 December 2006
Confirm Date28 January 2014
Normative References(Required to achieve compliance to this standard)EN 14620-3:2006, EN 1997-1:2004, ENV 1998-4:1998, EN 1992-1-1:2004, EN 1998-1:2004, EN 14620-5, EN 14620-2, EN 14620-4, EN 1991-1-6, EN 1991-1-4
Informative References(Provided for Information)EN 1473, EN 1991-1-1, EN 1991-1-2, EN 1991-1-3, EN ISO 9001, EN 1998-5, EN 1991-1-5, ISO 9001:2000, EN 13445-3:2002, EN 13445-1:2002, EN 13445-5:2002, EN 13445-4:2002, EN 13445-2:2002
ReplacesBS 7777-1:1993
International RelationshipsEN 14620-1:2006
Draft Superseded By03/105148 DC
DescriptorsRefrigeration, Vertical, Bottom, Liquefied gases, Commissioning, Ammonia, Structural design, Design, Selection, Loading, Equipment safety, Foundations, Bulk storage containers, Liquefied natural gas, Containers, Flat (shape), Tanks (containers), Pressure vessels, Gas pressure vessels, Liquefied petroleum gas, Low temperatures, Cylindrical shape, Steels
ICS23.020.10
Title in FrenchConception et fabrication de reservoirs en acier a fond plat, verticaux, cylindriques, construits sur site, destines au stockage de gaz refrigeres, liquefies, dont les temperatures de service sont comprises entre 0°C et -165°C. Generalites
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. Allgemeines
CommitteePVE/15
ISBN0 580 49775 5
PublisherBSI
FormatA4
DeliveryYes
Pages40
File Size519 KB
Price£214.00


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