DIN 2481 1979-06 eng PDF

Full title and description

STB DIN 2481:1979-06 — Thermal Power Plants; Graphical Symbols. English and German language editions were made available for this DIN standard describing standardized graphical symbols for use in drawings, control panels and technical documentation for thermal power generating plants.

Abstract

This standard defines the graphical symbols and conventions for representing the layout, equipment and piping of thermal power plants. It covers symbol sets for substances, lines, valves, actuators, special fittings and associated supplementary signs and gives examples of application in control and schematic diagrams. The rules are intended for use on drawings, instrument panels, and equipment labelling for all forms of thermal power plants (condensing stations, industrial power plants, plants for compressed‑air generation, heating plants with or without power generation, fossil‑fired or nuclear).

General information

• Status: Withdrawn (formerly published DIN standard).
• Publication date: 1979-06-01 (June 1979).
• Publisher: Deutsches Institut für Normung (DIN).
• ICS / categories: 01.080.30 (Graphical symbols for drawings, diagrams, plans, maps) and 27.100 (Power stations in general).
• Edition / version: Edition 1979 (DIN 2481:1979-06).
• Number of pages: 60 pages.

Scope

Specifies the graphic symbols and presentation rules for showing the construction and functional elements of thermal power plants. The scope includes symbol definitions for media and substances, piping and line types, shut‑off and regulating valves (detailed sub‑items covering a wide range of valve types and drives), special fittings and accessories, and examples illustrating application in control schematics and panel layouts. The symbols are based on related graphical sign standards and are intended to ensure unambiguous representation across engineering drawings and documentation for power‑plant engineering.

Key topics and requirements

• Standardized graphical symbols for thermal power plant components (pumps, heat exchangers, boilers, turbines, cooling towers, etc.).
• Definitions and depiction rules for media and material representation.
• Line types and piping representation conventions.
• Detailed symbol sets for shut‑off, regulating and special valves including actuator/drive indications and supplementary signs.
• Examples of application in control diagrams and switchboard/panel layouts to show consistent use of symbols.
• References and alignment with related DIN/ISO graphical symbol standards where applicable.

Typical use and users

Used by plant designers, mechanical and process engineers, drafting and CAD teams, instrumentation and control engineers, technical authors preparing drawings and manuals, and organizations producing P&IDs and electrical schematics for thermal power plants. It is also employed by standards librarians and procurement teams when referencing symbol rules for documentation and training. (Practical application reflected in the standard’s subject classification and vendor listings.)

Related standards

DIN 2481 cross‑references and aligns with other graphical symbol standards and recommendations. Historical and related documents include earlier VDI recommendations (VDI 3527:1967-05 noted as related), parts of the DIN 30 600 series (symbol image signs) and other DIN/ISO graphical symbol publications (for example standards in the DIN 85xxx / ISO series for technical diagrams). Some vendor catalogues also list linked standards such as ISO 4067 series and other DIN parts that handle specific symbol families.

Keywords

Thermal power plants, graphical symbols, P&ID, piping and instrumentation diagrams, valves, pumps, heat exchangers, control diagrams, drawing conventions, power stations, symbol set.

FAQ

Q: What is this standard?

A: DIN 2481:1979-06 is a DIN standard that establishes graphical symbols and presentation rules for thermal power generating plants (thermal power stations) to be used in diagrams, drawings and control panels.

Q: What does it cover?

A: It covers symbol definitions for media, lines, valves (including many specific valve types and drives), special fittings and accessories, and shows examples of how to apply the symbols in control and schematic diagrams for various types of thermal power plants.

Q: Who typically uses it?

A: Mechanical/process engineers, instrumentation/control engineers, drafters and CAD specialists, technical authors, and others preparing P&IDs and plant documentation for thermal power stations.

Q: Is it current or superseded?

A: The standard is listed as Withdrawn in current standards catalogs and webstores; it is no longer an active DIN publication offered as a current national standard. Availability now is generally as a historical/archival document or for purchase from standards resellers; users should check for newer DIN or ISO symbol standards that may be recommended in its place.

Q: Is it part of a series?

A: DIN 2481 is a standalone DIN document focused on thermal power plant symbols but it is implemented alongside and based on general graphical symbol families (e.g., parts of the DIN 30 600 series and other DIN/ISO symbol standards). It is also cited in vendor and standards‑catalog metadata that link it to other symbol and diagram standards.

Q: What are the key keywords?

A: Thermal power plants; graphical symbols; circuit diagrams; valves; pumps; heat exchangers; P&ID; drawings; control panels.