When water flows through a pipe in the reverse direction that the system designer intended, it's call a "backflow".
Typically, the term "backflow preventer" has been used to stop backflow in a fresh water system caused by siphoning.
Recently, many people have started to use the terms backflow preventer, backflow valve and backwater valve interchangeably so it may be confusing to see the backflow based terms used to describe sewage backflow prevention.
At any rate, an automated gate within a valve designed to keep an unwanted reverse flow out may be correctly be called a "Backwater Valve", "Backflow Valve" or "Backflow Preventer"
Simply put, a backwater valve, backflow valve or backflow preventer automatically senses a reverse flow (either water or sewage flowing the wrong direction) in a pipe and completely closes the line when the condition occurs.
Our Mainline 4963 Backwater Valve installed in the main line below your basement floor is one of the most economical and effective ways to prevent sewage or storm water from backing up in drains or plumbing fixtures in the lowest level of your home.
|
