Double check valve assembly definition

Double check valve assembly means an assembly composed of two single, independently acting, check valves including tightly closing shutoff valves located at each end of the assembly and suitable connections for testing the water tightness of each check valve.

Double check valve assembly means an assembly of two (2) independently operating, approved check valves with tightly closing resilient seated shut-off valves on each side of the check valves, fitted with properly located resilient seated test cocks for testing each check valve.

Double check valve assembly means an assembly composed of single, independently acting check valves approved under ASSE Standard 1015. A double check valve assembly and suitable connections for testing the water-tightness of each check valve.

Examples of Double check valve assembly in a sentence

• The type of backflow prevention assembly that may be required (listed in decreasing level of protection) includes: Air-gap separation (AG), Reduced Pressure Principle Backflow Prevention Assembly (RP), and a Double Check Valve Assembly (DC).

• Double Check Valve Assembly — An assembly of two independently operating spring-loaded check valves with tightly closing shut-off valves on each side of the double check valve, plus properly located test cocks for the testing of each check valve.

• This assembly shall include a line sized Department of Health-approved (listed on the most current copy of "Accepted Cross-Connection Control Assemblies" published by Washington State Department of Health) Double Check Valve Assembly with a parallel 3/4" meter and 3/4" Department of Health-approved double check valve assembly.

• An irrigation meter with a Double Check Valve Assembly backflow prevention device shall be provided for all landscaped areas.

More Definitions of Double check valve assembly

Double check valve assembly or “Double Check Valve” shall mean an assembly of two (2) independently operating spring loaded check valves with tightly closing shut off valves on each side of the check valves, plus properly located test cocks for the testing of each check valve.

Double check valve assembly means an assembly composed of single, independently acting check valves approved under ASSE Standard 1015. A double check valve assembly must include tight shutoff valves located at each end of the assembly and suitable connections for testing the water-tightness of each check valve.

Double check valve assembly means a backflow-prevention assembly that contains two independently acting check valves with tightly closing, resilient-seated shut-off valves on each end of the assembly and properly located, resilient-seated test cocks.

Double check valve assembly means an assembly of at least two independently acting check valves including tightly closing shutoff valves on each side of the check valve assembly and test cocks available for testing the watertightness of each check valve.

Double check valve assembly means an assembly composed of two single, inde- pendently acting check valves including 100% closing shutoff ball valves located at each end of the assembly and suitable connections for testing the watertightness of each check valve.

Double check valve assembly means a device or assembly composed of two (2) tightly closing shutoff valves surrounding two (2) independently acting check valves, with four (4) test cocks, one (1) upstream of the four (4) valves and one (1) between each of the four (4) check and shutoff valves.

Double check valve assembly means an assembly incorporating two internally loaded, independently operating check valves, including resilient seated shut-off valves on each end of the assembly and test cocks for testing the water tightness of each check valve.