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Mining Publication: Evaluation of Safety Shutoff Valve System on Methane Gas Pipelines Under Mine Fire Conditions
Keywords: Fires Horizontal boreholes Methane
Original creation date: January 1986
Authors: PA Kinek, TE Marshall, GL Finfinger
Information Circular - January 1986
Download PDF Document (0.97 MB)
NIOSHTIC2 Number: 10004995
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9065, 1986 Jan; :1-7
The purpose of this investigation was to evaluate the integrity of the existing shutoff valves and actuators used under high-temperature conditions in the Bureau of Mines horizontal borehole methane drainage pipeline system and to determine the potential for improvement in the system. In the field tests, both firesafe ball valves and standard brass ball valves were initially subjected to a 30-min pan fire without thermal protection. Neither valve could maintain line pressure beyond 11 min in a fire that reached temperatures between 500 degrees and 700 degrees C. Based on the test results, it was concluded that the brass ball valve used in the Bureau methane drainage pipeline system can be retrofitted with an inexpensive fire bag to substantially increase its integrity under mine fire conditions.
Image of publication Evaluation of Safety Shutoff Valve System on Methane Gas Pipelines Under Mine Fire ConditionsInformation Circular - January 1986
Download PDF Document (0.97 MB)
NIOSHTIC2 Number: 10004995
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, IC 9065, 1986 Jan; :1-7
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Investigation of Similarities Between Methane Drainage Potential of Utah's Sunnyside Coalbed and Eastern U.S. Coalbeds
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Methane Drainage Study Using an Underground Pipeline, Marianna Mine 58
Methane Emission Rate Study in a Deep Pocahontas No. 3 Coalbed Mine in Conjunction With Drilling Degasification Holes in the Coalbed
Remote Methane Sensors
Page last reviewed: November 19, 2015
Page last updated: November 19, 2015
Content source: National Institute for Occupational Safety and Health, Mining Program
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