The Pneumatic Systems library, developed by Dassault Systèmes, offers components for modelling pneumatic system in which a pressurised gas allows the generation and distribution of the pneumatic power for the conversion into mechanical power. Typical use is in the field of suspensions or actuation systems.

Models allow users to choose among different gas implementations, either specifically developed for this library or already present in the Modelica Standard Library (MSL); an agile interfacing with the mechanical components of the MSL itself is also guaranteed.