Column Separation + C70 SP Operation

How installing the BERMAD C70 Combination Air Valve prevents damage from column separation?
https://www.bermad.com/product/c70-2/

BERMAD C70 is a high quality combination air valve for a variety of water networks and operating conditions.

It evacuates air during pipeline filling, allows efficient release of air pockets from pressurized pipes, and enables large volume air intake in the event of network draining.

With its advanced aerodynamic design, double orifice and anti-slam / slow closing device, this valve provides excellent protection again air accumulation, vacuum formation and pressure surges, with improved sealing in low pressure conditions. The valve minimizes water spraying during air release.