NAC445A.6586. “Double check valve assembly” defined.

Latest version.

“Double check valve assembly” means an assembly that:

     1. Is composed of two independently acting, approved check valves;

     2. Has tightly closing, resilient seated shutoff valves attached at each end;

     3. Is fitted with properly located, resilient seated test cocks; and

     4. Has been tested and approved, in accordance with American Water Works Association Standard C510, by an approved backflow testing laboratory.

(Added to NAC by Bd. of Health, eff. 2-20-97)

                    
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