Experimental investigation and performance enhancement of swing check valves

Document Type : Original Article


1 Ph.D. Mechanical Engineer Mechanical Power Engineering Department, Tanta University, Tanta, Egypt.

2 Aircraft Mechanics Department, Military Technical College

3 Mechanical Power Engineering Department, Tanta University, Tanta, Egypt.


The swing check valve (SCV) is a type of check valves or non-return
valves that allows the fluid to flow in one direction only. The main
goal of this research is devoted to enhance the SCV performance by
accelerating the SCV closure, thus reducing the amount of reversed flow
through the valve before it is fully closed. This will be carried out only
by modifying the design of the SCV itself and without using any external
devices like springs or external attached masses. A wafer type SCV is
used as a case study to investigate its transient closing characteristics;
flapper’s angle, reversed flow through the SCV and pressure rise due
to the valve closure. With the aid of numerical simulation, five of
ten suggested modifications are chosen and 3D printed to be tested
experimentally versus the original/reference design. The experimental
investigation shows that two of the five designs close faster with less
reversed flow than the original/basic design.


Main Subjects