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Standard [WITHDRAWN] DIN Flow sheets and diagrams of process plants – Graphical symbols.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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You are commenting using your WordPress. 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.

The various types of flow-sheet are discussed below. This is available in an English translation from the British Standards Institution.

Nominal operating pressure the required operating pressure. To find out more, including how to control cookies, see here: Alterations and additions can be easily made. Leave a Reply Cancel reply Enter your comment here It is best that each group use the same estimates, rather than each decide its own values.

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. 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.


FLOW-SHEET PRESENTATION – I | Chemical Engineering Projects

The amount of information dun on a flow-sheet will depend on the custom and practice of the particular design office. Email Address never made public.

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. Dni me of new comments via email. As the process flow-sheet is the definitive document on the process, the presentation must be clear, comprehensive, accurate and complete. Physical property data, mean values for the stream, such as: Stream temperature, degrees Celsius preferred.

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A Picture symbols defined by DIN

In another method each stream line is numbered and the data tabulated at the bottom of the sheet. With complex processes, their use is limited to showing the overall process. This site uses cookies. Fill in your details below or click an icon to log in: A block diagram is the simplest form of presentation. Block diagrams are useful for representing a process in a simplified form in reports and textbooks, but have only a limited use as engineering documents.

Each block can represent a single piece of equipment or a complete stage in the process.


The list given below has therefore been divided into essential items and optional items. This is the method generally used by professional design offices.


The essential items must always be shown, the optional items add to the usefulness of the flow-sheet but are not always included. 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.

You are commenting using your Twitter account. The simplest method, suitable for simple processes with few equipment pieces, is to tabulate the data in blocks alongside the process stream lines.

On the detailed flow-sheets used for design and operation, the equipment is normally drawn in a stylised pictorial form. In Europe, the 28004 standards organisation has published a set of guide rules and symbols for flow-sheet presentation, DIN The blocks can be of any shape, but it is usually convenient to use a mixture of squares and circles, drawn with 2004 template.

Notify me of new posts via email. The stream physical properties are best estimated by the process engineer responsible for the flow-sheet.