Titling Check Valve

Titling Check Valve

Tilting check valve is a type of construction of check valves. The basis of the tilting check valve is lifting a disc, pivoted on the periphery, with flow in one direction. The disc lifts and floats in the stream offering minimum resistance to flow. The disc tilt angle results from the balance of the disc weight and hydrodynamic forces. When the tilt angle tends to be very close to zero, the valve closes and in that moment a reverse flow and a sudden pressure rise occurs. The disc of the check valve is subjected to dynamic load due to the fluid striking the disc body. The dynamic load depends upon flow velocity and flow type. The dynamic force affects valve performance, decreases operating life, and increases flow loss coefficient. In this research, the dynamic characteristics of a tilting check valve is studied. A test setup is designed and modern instrumentation including spectrum analyzer, accelerometers, and vibration software are used to measure and analyze valve oscillations at different operating conditions.