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7.5.5 Internal floating-head covers shall have the specified corrosion<br />
allowance on all wetted surfaces except gasket-seating surfaces. <strong>The</strong><br />
specified corrosion allowance shall be included on the back side of the<br />
floating-head backing device.<br />
Floating Head<br />
with Packing<br />
Device<br />
<strong>The</strong> specified corrosion<br />
allowance shall be included<br />
on the back side of the<br />
floating-head backing device.<br />
Charlie Chong/ Fion Zhang