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THE 2" MODEL RSV-1 RESIDENTIAL SHUT-OFF VALVE is designed for use in dual-purpose residential water supply systems. After sprinkler activation the valve automatically shuts off water flow to the ...

San Bruno Assemblyman Jerry Hill says PG&E should have installed an automatic shutoff valve for such a large pipeline in such a populated area. "If an appropriate valve had been in place the gas could ...

State and congressional lawmakers moved Tuesday to impose new requirements for automatic or remote-controlled shutoff valves on pipelines after last week’s San Bruno natural gas conflagration raged ...