backflow preventer


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backflow preventer

[′bak‚flō pri′ven·tər]
(engineering)

backflow preventer

backflow preventer for a hose connection
A device used to prevent water (or other liquids) from being siphoned into a potable water system.
References in periodicals archive ?
For Phoenix area businesses, the problem is two-fold: not only is the stolen backflow preventer expensive to replace, but the business owner who finds out about the theft on a Monday, now has to deal with a flooded mess that more than likely has been gushing since the previous Friday.
If you are having trouble locating your backflow preventer or have questions about it, please call SUB's engineering assistant at 744-3397.
A backflow preventer to protect the city water supply was not installed at this connection.
Install a combination valve and antisiphon backflow preventer (either brass or plastic, depending on your building code) at the water source; shut off water line first.
Place a filter on the tank inlet (see top right photograph on page 172), and use a 200-mesh drip-irrigation filter at the outlet (you'll also need a backflow preventer and pressure regulator).
A backflow preventer, required for permanent installations, could be screwed onto the time clock.
Standalone sprinkler systems require a backflow preventer, a check valve and, depending on the municipality, a separate water meter, which can add up to $5,000.
Tenders Are Invited For M520-C1, Berth 12 Backflow Preventer, Conley Terminal
Pierre also built the manifolds for each zone, installed the backflow preventer and set up the boxes.
Dual Check Backflow Preventer (dc) Standard Asse 1024
April 25 /PRNewswire/ -- A local businessman and building developer/contractor, Byron Bishop has been in the construction business for over thirty years and is a victim of metal thefts, "Just twenty-five feet from the door of our field office, nine backflow preventer units were stolen, and a few miles from this office seventeen units were stolen in one day.