backflow


Also found in: Dictionary, Thesaurus, Medical.
Related to backflow: backflow valve

backflow

[′bak‚flō]
(civil engineering)
The flow of water or other liquids, mixtures, or substances into the distributing pipes of a potable supply of water from any other than its intended source.
(fluid mechanics)
Any flow in a direction opposite to the natural or intended direction of flow.

backflow

1. The flow of water or other liquids, mixtures, or substances into the distributing pipes of a potable supply of water from any other than its intended source. Also see back siphonage
2. Any flow in a direction opposite to the natural or intended direction of flow.
References in periodicals archive ?
Understanding the backflow prevention terminology is the key to knowing which backflow assembly is appropriate for a given installation.
But we could show that even in a completely reflection-free medium, backflow occurs.
Stoma said its new Dove Backflow Prevention SE Valve is a one-way valve that virtually eliminates backflow cross contamination risk between dental patients.
However, what roles do berry transpiration and xylem backflow play during berry development?
The best way to determine whether backflow prevention devices are required in your building is to hire a Licensed Master Plumber (LMP), Professional Engineer (PE) or Registered Architect (RA) or to request a property inspection from the DEP.
Joining the ranks of stolen wire, copper pipes and just about any semi-valuable metal that thieves can get their hands on, plumbing products like backflow preventers which prevent the contamination of clean water are being ripped out and stolen at an alarming rate.
After having the sewer line snaked, jetted and scoped, we learned that the backflow valve cap had broken off and become lodged in the line.
ALL taps with a hosepipe attached must be fitted with a backflow preventer or anti-syphon device, which prevents the water being contaminated fby harmful substances used in and around the garden.
Proton pump inhibitors, which work to stop the backflow of stomach acid, are being overprescribed, they said.
Special mixing elements create backflow with very gentle mixing, which yields energy savings of up to 30%, Reimelt says.
The pump operates in a defined sequence; it is self-priming and transports liquids without backflow.
At Hart High School in Newhall, neighborhood kids took advantage of an unofficial snow day when a backflow device ruptured and caused water to freeze Sunday.