Where on a valve does atmospheric leakage normally occur?

A. Bonnet
B. Valve body
C. Valve stem
D. Valve seat


A. Incorrect. Atmospheric leakage normally occurs through the valve stem packing or flanges.
B. Incorrect. Atmospheric leakage normally occurs through the valve stem packing or flanges.
C. Correct. Atmospheric leakage normally occurs through the valve stem packing or flanges.
D. Incorrect. Atmospheric leakage normally occurs through the valve stem packing or flanges.

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