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Hydraulic tensioner nuts for Shell and tubes HX

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Editchke

Mechanical
Jul 31, 2019
3
HI, Does anybody has a application criteria about hydraulic tensioner nuts for Shell and tubes HX in terms of Pressure, temperature and fluid nature?
I starting to study of these nuts in order to evaluate a purchase order, I am working at a refinery mechanical design group (Mexico City) ; In the past I heard that an Craker Decoke Licensor stated: " use them for lethal fluid, 400°C @ 70 kg/cm2 operations conditions. Any advice will be appreciate.
 
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Can you tell us the bolt diameter?

Regards
 
There are several form 7/8" - 1- 1/4" Studs SA-193, Nuts SA-194

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