Functional and performance test

Test Background

The flow regulation characteristics, pressure drop characteristics and opening-closing performance of the valve directly determine the control accuracy and energy consumption of the liquid-cooling system, and are the basis for the CDU to achieve accurate flow distribution.

Test Introduction

The functional and performance test comprehensively evaluates the hydraulic performance and operating performance of the valve through flow characteristic test, pressure drop test, opening-closing torque and time test, solenoid valve response test and manual valve life test.

Testing Objectives

Plot the flow characteristic curves at different opening degrees

Measure the pressure drop in the fully open state

Measure the opening-closing torque and time

Verify the response repeatability of the solenoid valve

Evaluate the mechanical life of the manual valve

Test Standards

GB/T 17213 Industrial-process control valves

ISO 19879 Hydraulic valve testing

T/CESA 1249.2-2023 Valve performance requirements

Customer-defined flow characteristic requirements

Applicable Products/Fields

Suitable for electric control valves, electromagnetic shut-off valves, manual ball valves, check valves, etc.

Test Content

Flow characteristic test: Flow coefficient Cv values at different opening degrees

Pressure drop test: Inlet-outlet pressure difference in the fully open state

Opening and closing torque test: Operating torque of manual valves

Opening and closing time test: Action time of solenoid valves when energized/de-energized

Manual valve life test: 5000 opening and closing cycles

Project Advantages

Synchronous high-precision measurement of flow and pressure

Capable of simulating actual pipeline resistance characteristics

Provides complete valve performance curves

Laboratory Configuration

Valve performance test platform

Electromagnetic flowmeter (accuracy 0.5%)

Differential pressure sensor (accuracy 0.25%)

Torque sensor

Data acquisition and analysis system

FAQ
Q: What is the required adjustable ratio of the control valve? A: Usually, it is required to be ≥50:1 to ensure precise adjustment between the minimum and maximum flow rates.