Overview
ISO 17769-2:2012 - part of the ISO 17769 series - defines general terms, letter symbols and units related to the flow of liquids through rotodynamic and positive displacement pumps and their associated installations. Published in 2012 (first edition), this pumping system standard aims to harmonize vocabulary and measurement practice so installation designers, manufacturers, operators and plant constructors communicate clearly and consistently.
Key topics
The standard focuses on pumping systems and includes standardized terminology and units across these areas:
- General terms and definitions for pump systems, components and phenomena
- Speed and drivers (motor/drive related terms and symbols)
- Process and operation: flow, head, operating points and operational conditions
- Reliability and controls: availability, monitoring and control-related vocabulary
- Energy cost: terms and units used for energy consumption and cost assessment
- Pump systems assessment and improvement: standardized language for audits, performance evaluation and optimization
ISO 17769-2 identifies commonly used units and letter symbols for quantities related to liquid flow through pumps while allowing the use of additional legal units where required.
Practical applications
ISO 17769-2 is practical for:
- Preparing technical specifications, datasheets and procurement documents with unambiguous terms
- Writing or reviewing installation drawings, operation manuals and training materials
- Performing energy audits, performance testing and cost calculations for pumping systems
- Conducting reliability assessments, condition monitoring and control-system design
- Facilitating cross-disciplinary communication between engineers, constructors and plant operators
Using the standard reduces misunderstandings in project documentation, supports regulatory or contractual clarity, and streamlines system optimization efforts.
Who should use it
- Pump and piping system designers and engineers
- Pump manufacturers and OEMs
- Plant operators and maintenance teams
- Procurement and contract authors specifying pump systems
- Energy auditors and reliability engineers
- Technical writers and educators producing teaching or implementation materials
Related standards
- ISO 17769-1 - Part 1: Liquid pumps (complements Part 2 by addressing pump-specific terms)
- Other ISO/TC 115 pump standards and industry-specific guidelines for performance testing, selection and installation
Keywords: ISO 17769-2, pumping system standard, pump terminology, liquid pumps, pump installation, rotodynamic pumps, positive displacement pumps, letter symbols, pump units, energy cost, pump system assessment.