ISO 14617-9:2002

Overview

ISO 14617-9:2002 - part of the ISO 14617 series - defines internationally harmonized graphical symbols for diagrams specifically for pumps, compressors and fans. The part focuses on symbols used mainly for transportation devices in technical diagrams and is intended to support consistent process plant documentation and technical product documentation across industries.

Key topics

• Scope and purpose
  • Symbols cover mechanically driven pumps, compressors and fans; entrainment and entrapment (vacuum) pumps; and electric pumps.
  • Emphasizes symbol use for transportation functions (energy-conversion devices for fluid power are covered in ISO 14617-10).
• Terms and definitions
  • Standard provides neutral definitions relevant to diagramming: e.g., positive-displacement pump, rotodynamic pump, turbo‑molecular pump, entrainment and entrapment pumps, capacity/displacement, electric and induction pumps.
• Symbol catalog and identification
  • Includes reference symbol numbers (examples: 2301 liquid pump, 2302 gas pump/compressor/fan, 2331 ejector pump, 2339 cryopump, 2352 electric induction pump).
  • Guidance on combining basic symbols with supplementary symbols (adjustability, form, positive‑displacement vs rotodynamic, turbo‑molecular).
• Application rules
  • Placement and presentation rules (for example, supplementary symbols crossing the symbol center).
  • Specific instructions such as replacing an asterisk with a chemical symbol where applicable (R2331, R2332).
• Examples
  • Application examples illustrate combinations (e.g., adjustable rotodynamic liquid pump, over‑centre and reversible pumps).

Applications

• Use ISO 14617-9:2002 to create consistent, unambiguous technical diagrams, schematics and documentation for:
  • Engineering drawings and system schematics
  • Process plant documentation and equipment manuals
  • CAD symbol libraries and diagram templates
  • Cross‑discipline communication between mechanical, vacuum and electrical engineering teams
• Benefits include improved interoperability of drawings, clearer procurement/specification documents, and harmonized international documentation practices.

Who should use it

• Mechanical and process engineers, technical drafters, documentation specialists, CAD library managers, standards committees, and manufacturers of pumps, compressors and fans who need standardized diagram symbols.

Related standards

• ISO 14617 series (Part 1 general info and indexes; Part 10 fluid power converters)
• ISO 81714-1 (design rules for graphical symbols)
• ISO 5598 (fluid power vocabulary)
• ISO 3529-2 (vacuum pump terminology)

Using ISO 14617-9:2002 helps organizations maintain clear, standardized pump and compressor symbols in diagrams, improving clarity, compliance and international compatibility of technical documentation.