TS 1306

TS 1306 is a standard concerned with the definitions and principles of graphical symbols used for hydraulic and pneumatic equipment and associated accessories in fluid power transmission. In technical drawings and circuit diagrams, a common symbol language is essential for readability, consistent interpretation, and comparable representation of equipment across systems and documents.

Symbol language in fluid power diagrams

Hydraulic and pneumatic systems use pressurised fluid to transmit energy and control motion. In this field, graphical symbols provide simplified representations of components such as pumps, compressors, valves, actuators, filters, regulators, and related auxiliary devices. The subject of this standard is the way those symbols are defined and used in schematics, providing a shared graphical convention rather than a product-specific design rule.

Where this terminology matters

A symbol standard like this supports engineering drawings, maintenance documentation, training material, and system descriptions by reducing the risk of misreading functional relationships. Hydraulic systems are commonly associated with high force and precise control, while pneumatic systems are often used for fast motion and lighter-duty actuation. Consistent symbols help express the functional structure of a circuit visually instead of relying only on text.

This record is identified as equivalent to ISO/R 1219:1970, so TS 1306 aligns with that international graphical-symbol approach. Although the standard is now withdrawn, its conceptual framework remains relevant to understanding fluid power schematics and legacy documentation.