DIN 28004 PDF

Standard [WITHDRAWN] DIN Flow sheets and diagrams of process plants – Graphical symbols. German title: Fließbilder. A Picture symbols defined by DIN , The following picture symbols are standardised by DIN 28 , part 3. Only the parts of the norm relevant. DIN – DRAFT. Draft Document – Flow diagrams of process units – Definitions. standard by Deutsches Institut Fur Normung E.V.

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In Europe, the German standards organisation has published a set of guide rules and symbols for flow-sheet presentation, DIN On the detailed flow-sheets used for design and operation, the equipment is normally drawn in a stylised pictorial form. You are commenting using your WordPress. The various types of flow-sheet are discussed below.

The data on the flow-rate of each individual component, on the total stream flow-rate, and the percentage composition, can be shown on the flow-sheet in various ways. The stream flow-rates and compositions can be shown on the diagram adjacent to the stream lines, when only a small amount of information is to be shown, or tabulated separately. You are commenting using your Facebook account. To find out more, including how to control cookies, see here: You are commenting using your Twitter account.


As the process flow-sheet is the definitive document on the process, the presentation must be clear, comprehensive, accurate and complete.

FLOW-SHEET PRESENTATION – I | Chemical Engineering Projects

Notify me of new posts via email. A block diagram is the simplest form of presentation.

This is available in an English translation from the British Standards Institution. This is the method generally used by professional design offices. Stream temperature, degrees Celsius preferred.

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Alterations and additions can be easily made. It is best that each group use the 28040 estimates, rather than each decide its own values. If they are then shown on the flow-sheet, they are available for use by the specialist design groups responsible for the subsequent detailed design. The amount of information shown on a flow-sheet will depend on the custom and practice of the particular design office. Physical property data, mean values for the stream, such as: In another method each stream line is numbered and the data tabulated at the bottom of the sheet.

Fill in your details below or click an icon to log in: Each dkn can represent a single piece of equipment or a complete stage in the process. The blocks can be of any shape, but it is usually convenient to use a mixture of squares and circles, drawn with a template. With complex processes, fin use is vin to showing the overall process. For tender documents or company brochures, actual scale drawings of the equipment are sometimes used, but it is more usual to use a simplified representation.


Nominal operating pressure the required operating pressure.

By continuing to use this website, you agree to their use. Leave a Reply Cancel reply Enter your comment here The simplest method, suitable for simple processes with idn equipment pieces, is to tabulate the data in blocks alongside the process stream lines. This site uses cookies.

The essential items must always be shown, the optional items add to the usefulness of the flow-sheet but are not always included. The list given below has therefore been divided into essential items and optional items. Block diagrams are useful for representing a process in a 280044 form in reports and textbooks, but have only a limited use as engineering documents.

The stream physical properties are best estimated by the process engineer responsible for the flow-sheet. Only a limited amount of information can be shown in this way, and it is difficult to make neat alterations or to add additional data.

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