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 early work of Ramon Margalef in 1968 [11] emphasized the role of asymmetry and heterogeneity of complex systems.
Double check valve assembly shall be tested and certified under ASSE 1015.
Double check valve assembly (DC) shall mean a backflow prevention assembly consisting of two(2) internally loaded independently operating check valves with replaceable seats and tightly closing approved shut-off valves on each side of the check valves, plus properly located and approved connections (test cocks) for testing the water tightness of each check valve.
Double check valve assembly means an assembly composed of two single, independently acting check valves, including 100 percent 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 (DCVA) - A device which contains two independently acting check valves located between two tightly closing shut-off valves and fitted with properly located test cocks.

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 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 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 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 Approved assembly of two independently acting, approved check valves, including tightly closing shut-off valves on eachend of the check-valve assembly and suitable connections available for testing the water tightness of each valve. To be approved these devices must be readily accessible for maintenance and testing and in no case shall be less than 12 inches above the flood level of the surrounding ground or floor and in a location where no part of the assembly will be submerged.