Sonic Velocity Vs Design Limit
Vs=223*SQRT(K*T/Mw)
K=Cp/Cv
T abso.Temp.
Mw: Mwt
Vs=ft/sec
please check of pressure drop must be below 40% of P1 (upstream pressure)
For contiuous Service Gas Velocity=0.5 * Vs
For intermittent service =0.75*Vs