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Why is live-loaded packing sometimes shown on valves?

asked Mar 25, 2014 in E&I by jakangaru (2,010 points)

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answered Apr 21, 2015 by bbenoit (710 points)
Live loading valves used in the plant environment are typically simple designs and require minimal maintenance to the plant crews.

Live-loaded fasteners maintain a constant load on the gasket to eliminate fugitive emissions to the atmosphere.

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