ISO 14617-8-2002 PDF

Full title and description

ISO 14617-8:2002 — Graphical symbols for diagrams — Part 8: Valves and dampers. Specifies standardized graphical symbols used in technical diagrams to represent valves and dampers (general-purpose valves, valves for fluid power systems and hygienic valves used in food and pharmaceutical industries).

Abstract

This part of ISO 14617 defines the graphical symbols for valves and dampers for use in diagrams and technical documentation. It provides conventional symbol shapes, registration numbers and guidance on presentation to ensure consistent representation across engineering drawings and schematics.

General information

• Status: Withdrawn / superseded.
• Publication date: September 2002 (corrected versions issued November 2003).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 01.080.30 (Drawings, plans and maps); 23.060.01 (General engineering drawings).
• Edition / version: Edition 1 (2002).
• Number of pages: 23.

Core bibliographic and lifecycle data as published by ISO.

Scope

Specifies graphical symbols for valves and dampers used in diagrams, covering: general-purpose valves and dampers; valves used in fluid power systems (hydraulic and pneumatic); hygienic valves intended for food and pharmaceutical applications; and valves with special functions. The part is intended to be used together with the general rules and registration guidance in the ISO 14617 series and relevant presentation rules (for example ISO 81714-1).

Key topics and requirements

• Standardized symbol shapes and variants for on/off, control, check, pressure-relief and multi-way valves.
• Symbols for dampers and flow-control elements used in fluid and pneumatic systems.
• Hygienic valve symbols and marking conventions for food/pharmaceutical applications.
• Rules for combining symbol elements (actuators, positions, supplementary details) and for indicating connections and functional relationships.
• Reference/registration numbers for each symbol within the ISO 14617 series and cross-references to other parts of ISO 14617 and presentation standards.

These items summarize the principal content areas of the standard as published.

Typical use and users

Used by mechanical, process and plant engineers, draughtsmen, CAD designers, technical illustrators, and standards/compliance teams preparing piping, hydraulic, pneumatic and process-flow diagrams. Typical applications include equipment documentation, P&IDs (piping and instrumentation diagrams), hydraulic and pneumatic schematics, and hygienic process documentation in food and pharmaceutical industries.

Related standards

Part of the ISO 14617 series (graphical symbols for diagrams). Related and complementary standards include ISO 14617-1 (general information, registration and presentation rules for symbols) and presentation standards such as ISO 81714-1. Note: ISO 14617-8:2002 has been withdrawn and its content incorporated / superseded by later revisions in the ISO 14617 family (for example the consolidated updates leading to ISO 14617-2:2025).

Keywords

graphical symbols, diagrams, valves, dampers, P&ID, hydraulic symbols, pneumatic symbols, hygienic valves, ISO 14617, technical drawings

FAQ

Q: What is this standard?

A: ISO 14617-8:2002 is Part 8 of the ISO 14617 series and defines graphical symbols for valves and dampers used in technical diagrams.

Q: What does it cover?

A: It covers standardized symbol forms for general-purpose valves, dampers, valves used in fluid power (hydraulic/pneumatic) systems and hygienic valves for food and pharmaceutical applications, plus rules for combining symbol elements and presentation.

Q: Who typically uses it?

A: Mechanical and process engineers, CAD/drawing professionals, plant designers and technical authors preparing piping and instrumentation diagrams, hydraulic/pneumatic schematics and hygienic process documentation.

Q: Is it current or superseded?

A: ISO 14617-8:2002 has been withdrawn. Its content has been superseded by subsequent revisions within the ISO 14617 series (the ISO catalog indicates consolidation and updates culminating in newer published parts such as ISO 14617-2:2025). Users should refer to the current parts of ISO 14617 for up-to-date symbol sets and rules.

Q: Is it part of a series?

A: Yes — it is one part of the multi-part ISO 14617 series (Graphical symbols for diagrams). The series includes parts addressing registers, general rules, and different classes of symbols (lines, valves, instruments, electrical components, etc.).

Q: What are the key keywords?

A: Graphical symbols, valves, dampers, diagrams, P&ID, hydraulic symbols, pneumatic symbols, hygienic valves, ISO 14617.