double check valve assembly (DCVA) definition
double check valve assembly (DCVA) means a backflow prevention device consisting of two force-loaded, independently acting check valves, including tightly closing resilient-seated shutoff valves located at each end of the assembly and fitted with properly located resilient-seated test cocks. This device is designed for use under continuous pressure;
double check valve assembly (DCVA) means two (2) single, independently acting, internally loaded check valves, which are either spring-loaded or internally weighted, installed between two (2) tightly closing shut-off valves, with suitable connections for testing the water tightness of each check valve.
double check valve assembly (DCVA) means a backflow prevention device consisting of two force-loaded, independently acting check valves, including tightly closing resilient-seated shutoff valves located at each end of the assembly and fitted with properly located resilient-seated test cocks.