Pressure smoothing - reduction in pressure surges and transients

As well as reducing the overall level of pressure, reducing surges or pressure transients from the network can also significantly reduce the rate of new bursts. Unlike some pressure control systems, such as two stage systems, the i2O system smoothly controls changes in PRV pressure to minimise pressure transients (ref 1).

References
1) Thornton J and Lambert A. "Progress in practical prediction of pressure: leakage, pressure: burst frequency and pressure: consumption relationships." Proceedings of IWA Special Conference 'Leakage 2005', Halifax, Canada, September 2005