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Hydraulic Fluid power – Pressure Relief Valves – Method of Testing and Presenting Basic Performance Data
standard by National Fluid Power Association, 08/26/2001

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This standard includes standard methods for testing the performancecharacteristics of hydraulic relief valves, a uniform method for presenting the test data and standardized information to enable the conducting of comparative test. This standard is intended to provide a uniform laboratory procedure for measuring and reporting the cracking pressure, reseat pressure, pressure regulating characteristics, hysteresis, pressure overshoot, stability and leakage of a hydraulic relief valve.

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