Dynamic load factor in closed systems

[Dutch-EGR]

ASME B31-1 II-3.5 would you use a DLF factor for calculations in "closed" systems?

 

[KevinNZ]

See
II-3.5.2 Closed Discharge Systems. Closed discharge
systems do not easily lend themselves to simplified
analysis techniques. The discussions on pressure in
para. II-2.2.2 and on forces in para. II-2.3.2 indicate
that a time-history analysis of the piping system may
be required to achieve realistic values of moments.