Double check valve backflow prevention assembly definition

Double check valve backflow prevention assembly means a backflow prevention device consisting of two independently acting internally loaded check valves, four properly located test cocks, and two isolation valves.
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Double check valve backflow prevention assembly or "DC" means an assembly of two independently acting approved check valves, including tightly closing resilient seated shutoff valves attached at each end of the assembly and fitted with properly located resilient seated test cocks. This assembly is designed to protect against a non- health hazard.
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Double check valve backflow prevention assembly means a backflow prevention assembly consisting of two independently acting internally loaded spring check valves, four properly located test cocks, and two isolation valves. Commonly referred to as a DC.
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Examples of Double check valve backflow prevention assembly in a sentence

  • Double check valve backflow prevention assembly shall be installed as follows:a.

  • Double check valve backflow prevention assembly shall be installed as follows: a.

  • Double check valve backflow prevention assembly shall mean a backflow prevention device composed of two single, independently acting, approved check valves, including tightly closing resilient seated shutoff valves attached at each end of the assembly and fitted with properly located resilient seated test cocks.

  • Double check valve backflow prevention assembly: The assembly shall conform to ANSI/AWWA C510-92 or latest revision and be capable of withstanding a working pressure of at least 150 psi without damage to working parts or impairment of function.

  • Double check valve backflow prevention assembly must be listed to ASSE 1015, AWWA C510, or CSA B64.5.1)2.

  • Backflow Preventer: Double check valve backflow prevention assembly consisting of 2 independent positive seating check valves, butterfly shut-off valves with installed tamper switches and test cocks.

  • Double check valve backflow prevention assembly means an assembly composed of two independently acting, approved check valves, including tightly closing resilient seated shutoff valves attached at each end of the assembly and fitted with properly located resilient seated test cocks.


More Definitions of Double check valve backflow prevention assembly

Double check valve backflow prevention assembly or “DC” means an assembly consisting of two independently-acting internally-loaded check valves, with tightly closing shut-off valves located at each end of the assembly (upstream and downstream of the two check valves), and fitted with test cocks that enable accurate field testing of the assembly. This type of assembly may only be used to isolate low hazard cross- connections. See Diagram 3, Appendix C.
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Related to Double check valve backflow prevention assembly

  • Backflow preventer means a device or means to prevent backflow.

  • Transportation network company driver or “driver” means an

  • technical specification means a document that prescribes technical requirements to be fulfilled by a product, process or service;

  • Operational Acceptance Tests means the tests specified in the Technical Requirements and Agreed Project Plan to be carried out to ascertain whether the System, or a specified Sub system, is able to attain the functional and performance requirements specified in the Technical Requirements and Agreed Project Plan, in accordance with the provisions of GCC Clause 27.2 (Operational Acceptance Test).