Page 274 - Valve Selection Handbook
P. 274
Sizing Pressure Relief Devices 261
Sizing Equations for Gas and Vapor Other Than Steam
Customary Mixed Imperial Units, Sonic Nozzle Flow
Weight flow—Ib/h
Volumetric flow—scfm
Customary Mixed SI Units, Sonic Nozzle Flow
Weight flow—kg/h
3
Volumetric flow—Nm /h
where
For values of C, refer to Table 7-2.
For values of K b, refer to Figure 7-3.
