ISO/PWI 4409

Hydraulic fluid power — Positive-displacement pumps, motors and integral transmissions — Methods of testing and presenting basic steady state performance ISO/PWI 4409

Scope

This document specifies methods for determining the performance and efficiency of hydraulic fluid power positive displacement pumps, motors and integral transmissions. It applies to components having continuously rotating shafts.
This document specifies the requirements for test installations, test procedures under steady-state conditions and the presentation of test results.