Issue
The pressure drop across the valve is required.
Environment
Valve
Pressure Drop
Cause
Customer needs to know what the pressure drop across a 32mm valve will be.
Resolution
Example: two 32mm V211T valves with flows of 0.549 l/s and 0.483 l/s through them.
To calculate the pressure drop use this formula - Pressure drop = (Flow rate in M3/Hr / KVs) squared.
Flow rate of 0.549 l/s
32mm V211T has a KV of 16
Converting flow to M3/Hr - 0.549 * 3.6 = 1.9764
Pressure Drop = 1.9764 / 16 = 0.123525 squared = 0.015258 Bar * 100 = 1.526 kPa
Flow rate of 0.483 l/s
32mm V211T has a KV of 16
Converting flow to M3/Hr - 0.483 * 3.6 = 1.7388
Pressure Drop = 1.7388 / 16 = 0.108675 squared = 0.0118102 Bar * 100 = 1.181 kPa
To review the Satchwell Valve sizing data sheet, please click HERE.