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Possible cavitation problems in the fill line to the reservoir downstream from the reservoir fill valve during reservoir filling shall be investigated and if cavitation is a potential predictable problem, cavitation control measures shall be incorporated in the design to eliminate or reduce significant cavitation and its attendant effects: slow destruction and high noise levels.

Cavitation charts of valve manufacturers also may be used to check if cavitation can occur under the inlet and outlet pressure conditions during maximum flows that can occur through the valve size chosen.

Of the different methods currently utilized for cavitation control, viz:

(a) Butterfly valves with expansion chamber;

(b) Cone valve with energy dissipation assembly;

(c) Roto-disc valve with pressure reducer (HITCO);

(d) Multiple valves in series to step down pressure in stages, etc.;

a cone valve with energy dissipation assembly is preferred. (28-ME-DG-02 § 8.3)