BS ISO 22181:2021

This standard BS ISO 22181:2021 Aerospace fluid systems and components. Variable displacement hydraulic motors. General specifications is classified in these ICS categories:

• 49.080 Aerospace fluid systems and components

This document establishes the general requirements for variable displacement uni-directional and bi-directional hydraulic motors, suitable for use in aircraft hydraulic systems at pressures up to 35 000 kPa (5 000 psi).

These requirements include:

• design requirements;

• test requirements.

Primary and secondary function motors (see Clause 4) are covered in this document; however, actuators with internal rotation angle limits and low-speed motors are not covered.

This document is intended to be used in conjunction with the detail specification that is particular to each application.