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Code of Federal Regulations (Last Updated: July 5, 2024) |
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Title 30 - Mineral Resources |
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Chapter I - Mine Safety and Health Administration, Department of Labor |
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SubChapter K - Metal and Nonmetal Mine Safety and Health |
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Part 57 - Safety and Health Standards - Underground Metal and Nonmetal Mines |
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Subpart M - Machinery and Equipment |
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Safety Devices and Maintenance Requirements |
§ 57.14114 - Air valves for pneumatic equipment.
Latest version.
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§ 57.14114 Air valves for pneumatic equipment.
A manual master quick-close type air valve shall be installed on all pneumatic-powered equipment if there is a hazard of uncontrolled movement when the air supply is activated. The valve shall be closed except when the equipment is being operated.
[53 FR 32528, Aug. 25, 1988; 53 FR 44588, Nov. 4, 1988]