TS ISO 14617-7

TS ISO 14617-7 is the part of the graphical-symbols series that deals with basic mechanical components in diagrams. It covers symbols used to represent mechanical elements such as weights, springs, clutches and brakes, as well as pipe and duct elements such as restrictors, nozzles and air vents, and storage devices such as tanks, pressure vessels and gas bottles. In technical drawings and process diagrams, the purpose is to identify a physical component with a compact, language-independent, and consistent visual notation.

How the symbols function in diagrams

These graphical symbols make complex assemblies easier to read at a glance. A symbol does not reproduce the exact shape of a component; instead, it communicates the component’s functional identity. That distinction matters in engineering documents, where design, maintenance, installation and system interaction often rely on the same notation being understood in the same way. Grouping mechanical items, flow-path components and storage units in one part also helps prevent confusion between elements that may appear together in a diagram but serve very different engineering roles.

Place within the ISO 14617 family

This part refers to ISO 81714-1 for the fundamental rules of creating and applying graphical symbols, so the underlying design principles come from the broader symbol methodology rather than from this part alone. ISO 14617-1 provides the general overview of the series, including registration numbers and rules for presentation and use. In that sense, TS ISO 14617-7 is not just a stand-alone symbol list; it is the mechanical-components section of a wider diagram-symbol system.

• Mechanical elements: weights, springs, clutches and brakes
• Pipe and duct elements: restrictors, nozzles and air vents
• Storage devices: tanks, pressure vessels and gas bottles
• Supports consistent visual communication in diagrams
• Refers to ISO 81714-1 for general symbol-creation rules