backwater valve


Also found in: Acronyms.

backwater valve

[′bak‚wȯd·ər ‚valv]
(engineering)
A type of check valve in a drainage pipe; reversal of flow causes the valve to close, thereby cutting off flow. Also known as backflow valve.

backwater valve, backflow valve

A type of check valve in a drainage pipe; reversal of flow causes the valve to close, thereby cutting off flow.
References in periodicals archive ?
That prompted the City Council to request that consideration be given to extending the backwater valve rebate program to commercial properties as well, something DPW officials are supporting.
This Project will provide for the installation of a backwater valve on forty-six (46) different side sewers, in Everett, Washington.
Overall, the study found that Canadian cities exhibited common strengths with regard to flood preparedness: greater use of residential backwater valves, the development of updated flood plain maps and strategic land use planning efforts, and increased urban drainage maintenance programs.