Sorry, I have to disagree. Pressure is potential energy and flow rate is kinetic energy and only kinetic energy can cause damage. Pressure on it's own will not cause damage to the media although if high enough it could burst the tank but then all that potential energy is immediately converted to kinetic so it is still the kinetic energy that does the damage.

However, it is true that there is a relationship between pressure differential (head) and flow rate but it is still the kinetic energy of the flow that causes the damage.

Potential energy converts to kinetic energy which in turn causes the damage.

It is a bit like voltage and current. It isn't the voltage that kills you, it is the current (electron flow) although the voltage causes the current.