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A gas non-return valve (NV), which: prevents dangerous gas mixtures. ensures the gas only flows in the intended direction. and a flame arrestor (FA), which: cools the flame to below the ignition temperature of the gas or gas mixture. prevents flashback. In addition to these two basic safety functions a flashback arrestor can also have a:
The natural gas transmission line is operated by Middleton-based Williams Cos. and the worker had dug through 22 inches of the pipeline, Jones said. Williams Cos. turned off the gas, Jones said ...
A gas explosion is the ignition of a mixture of air and flammable gas, typically from a gas leak. [1] In household accidents, the principal explosive gases are those used for heating or cooking purposes such as natural gas , methane , propane , butane .
During the days prior to the explosion, some residents reported smelling natural gas in the area. [34] [46] A source within PG&E reported a break in natural gas line number 132 caused the explosion. At the time of the explosion, the pressure within that part of the pipeline was 386–386.4 psi (2.661–2.664 MPa).
A crew working in the basement area of an Ohio building intentionally cut a gas line not knowing it was pressurized before a deadly explosion this week, the National Transportation Safety Board ...
“The explosion was felt and the gas flow could be felt about a mile away. It was a pretty substantial explosion just due to the pressure in that line,” Middleton Star Fire District Battalion ...
July 28 – A gas line explosion and fire occurred in Martin County, Texas, which injured four workers. A ditching truck hit an existing high-pressure gas line, causing an explosion and fire. [6] July 29 – A contractor ruptured a gas pipeline in Mont Belvieu, Texas, causing an explosion and fire. There were no injuries.
Aug. 31—A lawsuit involving a massive natural gas line explosion in 2015 that killed one person and injured at least two others was turned over to the jury Wednesday afternoon in Kern County ...