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Experimental Examination of Air Valves - Report

Fraunhofer UMSICHT is assigned to investigate the dynamic behaviour of five different A.R.I air valve types at pressure surge conditions.

D-060NS | Pressure Surges in Pipline Resulting From Air Releases

It is common practice to locate air vlaves at high ekevations along water transnission mains.

Improper sizing of an air valve could lead to the rapid explusion of air, which might result in excessive pressure surges at the air valve.

D-060NS | Application Under Water Column Separation and Return Events

Water column separation events occur at sudden water supply-demand differentials when the flow rate downstream from the point of separation is much higher than the flow rate upstream from this point.

D-040-DG-10 | BARAK - One-Way Air Valves

Air valves serve a number of very important functions, some of them, at times, conflict with each other.The overall purpose of air valves is to control air in liquid conveyance systems.

This control is accomplished by regulated intake or discharge of air, to or from the system.

Control of Transient Induced Contaminant Leakage and Infiltration by Implementation of Air Valve

Pressure transients wreak very extensive damages to water and wastewater transmission systems. Until recent years, most of the concern related to pressure transient damages was focused on the obvious extreme events of pipe burst or collapse that result in major spills or flooding. But, there are many damages, far more widespread and often more dangerous, that are less obvious and attract less attention.