
Pipes and Pipe Sizing | Spirax Sarco
However, this steam main has been sized to limit pressure drop, and the next smaller pipe size would have given a final pressure less than the requirement of 6.6 bar g, which is unacceptable. As can be seen, this procedure is fairly complex and can be simplified by using the nomogram shown in Figure 10.2.9 (in the Appendix of this Module).