Do we need to use FJ (Flange with Jack bolt)
Do we need to use FJ (Flange with Jack bolt)
(OP)
Hi there,
Is there anyone who know that when we need to use FJ?, and why? I am checking isometric drawings, and need to correct where i need to use FJ and where need, because the using of FJ would be more expensive.
Kindest,
Is there anyone who know that when we need to use FJ?, and why? I am checking isometric drawings, and need to correct where i need to use FJ and where need, because the using of FJ would be more expensive.
Kindest,





RE: Do we need to use FJ (Flange with Jack bolt)
Properly sized Jackbolts can be helpfull during dissassembly of flanges.
What is the process being contained?
RE: Do we need to use FJ (Flange with Jack bolt)
RE: Do we need to use FJ (Flange with Jack bolt)
The process may be contain components that will cause corrosion or build up of solids in the piping.
If the original iso's probably called out this requirement for a good reason; they had to justify the extra cost too.
RE: Do we need to use FJ (Flange with Jack bolt)
ht