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Standard [WITHDRAWN] DIN Flow sheets and diagrams of process plants – Graphical symbols.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 The essential items must always be shown, the optional items add to the usefulness of the flow-sheet but are not always included.

The data on the flow-rate of each individual component, on the total stream flow-rate, and the ddin composition, can be shown on the flow-sheet in various ways.

It is best that each group use the same estimates, rather than each decide its own values. Physical property data, mean values for the stream, such as: The stream flow-rates and ddin 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. The blocks can be of any shape, but it is usually convenient to use a mixture of squares and circles, drawn with a template.


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The list given below has therefore been divided into essential items and optional items. 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. 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.

Email Address never made public. Each block can represent a single piece of equipment or a complete stage in the process.

A Picture symbols defined by DIN

Notify me of new comments via email. Notify me of new dij via email. 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.

Fill in your details below or click an icon to log in: The amount of information shown on a flow-sheet will depend on the custom and practice of the particular design office. You are commenting using your WordPress.

FLOW-SHEET PRESENTATION – I | Chemical Engineering Projects

To 28004 out more, including how to control cookies, see here: Leave a Reply Cancel reply Enter your comment here The various types of flow-sheet are 28040 below. With complex processes, their use is limited to showing the overall process.


On the detailed flow-sheets used for design and operation, the equipment is normally drawn in a stylised pictorial form. A block diagram is the simplest form of presentation. Alterations and additions can be easily made.

You are commenting using your Facebook account. In another method each stream line is numbered and the data tabulated at the bottom of the sheet. 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.

Stream temperature, degrees Celsius preferred. This is the method generally used by professional design offices.

You are commenting using your Twitter account. Nominal operating pressure the required operating pressure. This is available in an English translation from the British Standards Institution. The simplest method, suitable for simple processes with few equipment pieces, is to tabulate the data in blocks alongside the process stream lines. The stream physical properties are best estimated by the process engineer responsible for the flow-sheet.

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