ISO 4391: Hydraulic Fluid Power - Pumps, Motors and Integral Transmissions - Parameter Definitions and Letter Symbols Second Edition
SDO: ISO: International Organization for Standardization
DOD Adopted ANSI Approved Approved
This International Standard describes and systematically defines the principal technical characteristics of hydraulic pumps, motors and integral transmissions.
It allots letter symbols to these characteristics, and indicates how they can be more clearly defined by suffixes corresponding to particular cases. It also lists an analysis of parameter dimensions.
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