DEVELOPMENT OF FULLY AUTOMATED TEST BED FOR MEASURING STATIC CHARACTERISTICS OF DIRECTIONAL HYDRAULIC VALVES

Abstract

Directional hydraulic valves are one of the basic and very important components of a hydraulic system as they control the direction and quantity of the flow of hydraulic fluid. In order to compare the performance of valves from different manufacturers, or in order to evaluate performance of the valve during its lifetime, a special test bed should be developed. The paper presents the development of fully automated test bed for measuring static characteristics of directional hydraulic vales according to ISO 10770-1. The test bed consists of hydraulic system equipped with modern sensors and is controlled by a soft PLC. The test procedure is fully automatic and the test results are displayed real-time.

Keywords

• hydraulic valves
• directional valves
• flow characteristics
• pressure drop
• test bed