Pipework Velocities Input

Question

I am Inputting the CIBSE Guide C pipework velocity limits into NETSYS, i am unsure how to input the velocities in the system marker. 
 Any assistance would be greatly appreciated.

Stephen Brown · Answer

Hi Jamie, 
 The CIBSE table is using typical bands therefore it would make sense to enter the highest CIBSE value for each band in the system marker. This limits the velocity for any sizes within that band. The settings shown below would meet that criteria. Note that the minimum pipe size is set at 15mm and would negate any pipes being sized smaller than that. If you are using a pipe system with smaller pipes simply adjust that Minimum Pipe Size to suit. 
 
 Hope that helps. 
 Regards Steve