SC Pressure And Process Piping Practice Questions - South Carolina Pressure And Process Piping Contractor Examination Exam

What does 'two-hole' a flange mean on a vertical pipe run?

Drill two extra holes in the flange OD for a chain fall Rotate the flange so two bolt holes straddle the vertical centerline, equally spaced left and right Use only two bolts on a Class 300 joint Install the gasket with two overlapping rings

Correct Answer:

Rotate the flange so two bolt holes straddle the vertical centerline, equally spaced left and right

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