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API 660, Sealing strip thickness.

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bebe214

bebe214

Mechanical
Joined
Dec 13, 2006
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2
Location
KR
Regarding shell and tube heat exchangers, API 660 specifies the thickness of sealing strip as below.

"Para.7.6.5.5. The nominal thickness of seal strips shall be the nominal thickness of the transverse baffles or 6mm, whichever is less."

However I doubt why API 660 specifies the maximum thickness. In point of mechanical/thermal view, it seems to be able to use thicker sealing strip. (even seems better)

I'm waiting for your opinion.
Thanks in advance.
 
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