Pipe Sizing - Hevacomp

Question

Why does the pressure drop (n/m2) in pipe sizing appear excessive but velocities are acceptable?

Duncan Brown · Answer

The pressure drop at the outlet is included in the pressure drop for the connecting pipe. For example: 5m pipe length, with 200n/m2 total pressure drop WC outlet with 1000n/m2 total pressure drop Total pipe pressure drop = 1200n/m2 Pressure drop pet meter = 240 n/m2