Flow Performance Analysis of Non-Return Multi-Door Reflux Valve: Experimental Case Study

Author:

Hadebe Xolani Prince1,Tchomeni Kouejou Bernard Xavier1ORCID,Alugongo Alfayo Anyika1ORCID,Sozinando Desejo Filipeson1ORCID

Affiliation:

1. Department of Industrial Engineering, Operation Management, and Mechanical Engineering, Vaal University of Technology, Andries Potgieter Blvd., 1900, Private Bag X021, Vanderbijlpark 1911, South Africa

Abstract

Non-return multi-door reflux valves are essential in fluid control systems to prevent reverse flow and maintain system integrity. This study experimentally analyzes the flow performance of multi-door check valves under different operating conditions, focusing on pressure testing and evaluating their effectiveness in preventing backflow. A wide-ranging experimental setup was designed and implemented to simulate real-world scenarios, facilitating accurate measurement of flow rates, pressure differences, and valve response times. The collected experimental data were analyzed to evaluate the valve’s performance in terms of flow capacity, pressure drop, and hydraulic efficiency. Additionally, the effects of factors such as valve size, valve configuration, and fluid properties (water) on performance were considered. It was found that the non-return multi-door reflux valve has been proven effective and reliable in preserving system integrity and maintaining unidirectional flow at the same time during pressure testing. It exhibits no backflow, remains stable and constant across varied flow conditions, and demonstrates a low pressure drop and high flow capacity, making it suitable for critical pressure testing applications. The response curve revealed that valve opening takes longer to reach higher flow rates than closing, indicating pressure instability during transition periods. This non-linear relationship indicates possible irregularities in pressure drop response to flow rate changes, highlighting potential areas for further investigation.

Publisher

MDPI AG

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