The above reply is true. But, when paid, we serve to minimise usage of flex hose lengths, too.


I had used single braided 321 SS metallic flex hoses in cryogenic applications with the following assumptions :

high axial & torsional stiffness - 1E6 lbs/inch- only subjected to lateral deflection.

Vendor generally gives lateral stiffness v/s live length data for specific pressure class.

System has to be properly supported and guided to protect flex hose from compression or torsion. Otherwise, one may have to use flex hoses in multiple orthogonal direction locations.

regards,

sam