ISO 9206-2018 PDF

Full title and description

ISO 9206:2018 — Aerospace — Fixed displacement hydraulic motors — General specifications. This international standard establishes general requirements, ratings and test/acceptance criteria for fixed (constant) displacement hydraulic motors intended for use in aircraft hydraulic systems (up to specified pressure limits).

Abstract

This document specifies the general requirements for constant-displacement hydraulic motors suitable for aircraft hydraulic systems at pressures up to 35 000 kPa (5 000 psi). It covers primary and secondary function motors and is intended to be used together with detailed (application-specific) specifications; actuators with internal rotation-angle limits and low-speed motors are excluded.

General information

• Status: Published / Confirmed international standard.
• Publication date: December 2018 (Edition 3, 2018).
• Publisher: International Organization for Standardization (ISO); available through national adoption (e.g., BSI).
• ICS / categories: 49.080 — Aerospace fluid systems and components.
• Edition / version: Edition 3 (2018).
• Number of pages: ISO official record lists 36 pages; national/adopted publications (BSI and others) commonly present expanded pagination (about 48 pages) depending on national forewords/annexes.

Scope

Defines the general specifications and requirements for fixed-displacement (constant-displacement) hydraulic motors intended for installation in aircraft hydraulic systems, including classification, ratings, testing (endurance, thermal, vibration), marking and installation considerations. The standard applies to motors suitable for system pressures up to 35 000 kPa (5 000 psi) and is to be used together with application-specific detail specifications; it does not cover actuators with internal rotation limits or low-speed motors.

Key topics and requirements

• General performance and dimensional requirements for fixed-displacement hydraulic motors.
• Rated pressures, torque and speed considerations for aircraft hydraulic applications (up to 35 000 kPa / 5 000 psi).
• Classification of motor functions (primary and secondary) and intended use cases.
• Acceptance, qualification and endurance testing requirements (including vibration, thermal and leakage tests).
• Installation, marking, identification and quality assurance requirements.
• Requirement to use ISO 9206 together with application-specific detailed specifications.

Typical use and users

Used by aircraft manufacturers, aerospace component suppliers, hydraulic-system designers, procurement and quality teams, certification authorities and maintenance/overhaul organisations for specifying, procuring and qualifying fixed-displacement hydraulic motors for aircraft and related aerospace vehicles.

Related standards

Developed under ISO/TC 20/SC 10 (aerospace — propulsion and equipment). Related or predecessor publications include earlier editions of ISO 9206 (for example ISO 9206:1990, withdrawn) and national/adopted versions (BS ISO 9206:2018). Users should consult application-specific detail specifications and other relevant aero-hydraulic standards when applying ISO 9206.

Keywords

hydraulic motor, fixed displacement, constant displacement, aerospace, aircraft hydraulic systems, hydraulic component specifications, testing, qualification, pressure rating, ISO 9206

FAQ

Q: What is this standard?

A: ISO 9206:2018 is an international standard that sets general specifications and requirements for fixed (constant) displacement hydraulic motors intended for aircraft hydraulic systems.

Q: What does it cover?

A: It covers general requirements, ratings, classification (primary/secondary function), test and acceptance criteria (endurance, vibration, thermal), marking and installation guidance for fixed-displacement hydraulic motors used in aerospace applications; it excludes actuators with internal rotation-angle limits and low-speed motors.

Q: Who typically uses it?

A: Aircraft OEMs, component manufacturers, hydraulic system designers, certification and maintenance organisations, and procurement/quality teams use this standard when specifying, testing and qualifying hydraulic motors for aerospace use.

Q: Is it current or superseded?

A: ISO 9206:2018 is the current (third) edition published in December 2018 and is recorded as a published/confirmed international standard; earlier editions (for example ISO 9206:1990) have been withdrawn and replaced by later editions. Standards are subject to periodic review.

Q: Is it part of a series?

A: ISO 9206 is a single-numbered standard with previous editions; it is intended to be used alongside application-specific detail specifications rather than as a numbered multi-part series. Related aerospace hydraulic standards are maintained by ISO/TC 20/SC 10.

Q: What are the key keywords?

A: Hydraulic motor, fixed displacement, aerospace, aircraft hydraulics, qualification testing, pressure rating, ISO 9206.