Backflow preventer definition

Backflow preventer means a device or means to prevent backflow.
Backflow preventer means a check valve used to ensure water flows in one direction and designed to prevent contamination from an end user, such as a home, from getting into the general water supply. An approved backflow preventer shall be a reduced-pressure backflow preventer or an antisiphon device which complies with the standards of the American Water Works Association and has been approved by the Foundation for Cross-Connection Control and Hydraulic Research.
Backflow preventer means a device or method to prevent backflow into the potable water system.

Examples of Backflow preventer in a sentence

  • Backflow preventer and valves shall be the same size as the pipeline in which they are installed, unless otherwise shown on the plans.• Backflow preventer shut-off valves shall be manufactured from iron or bronze and shall be either resilient wedged gate valves, resilient seated and fully ported ball valves, or resilient seated butterfly valves.

  • Backflow preventer applications shall conform to applicable local regulations, Table 608.1, and as specifically stated in Sections 608.2 through 608.16.10.

  • Backflow preventer may not be required at connections to the irrigation system.

  • Backflow preventer tests shall be performed using test equipment, procedures, and certification forms conforming to those outlined in the latest edition of the Manual of Cross-Connection Control published by the FCCCHR Manual.

  • Section 608.13.3, is deleted and replaced with the following: "608.13.3 Backflow preventer with intermediate atmospheric vent.


More Definitions of Backflow preventer

Backflow preventer means any device or means, approved by the Utility, designed to prevent Backflow or Backsiphonage including, but not limited to, a Double Check Valve Assembly and a Reduced Pressure Principle Backflow Preventer.
Backflow preventer means a backflow prevention assembly, air gap, or AVB.
Backflow preventer means any generic backflow prevention device or assembly.
Backflow preventer means any assembly, device, method or type of construction intended to prevent backflow into a potable water system. This definition applies wherever "backflow prevention device" is used in this chapter.
Backflow preventer means a device or assembly for a water service pipe which prevents backflow into the City’s waterworks and includes a premises isolation device;
Backflow preventer means a device or means designed to prevent backflow or
Backflow preventer is a device or means to prevent backflow into a potable water system.