Control Valves - Large sizes - Authorities
Control Valves - Large sizes - Authorities
(OP)
When trying to install a two-way control valve of 450mm size, we usually end up using motorized butterfly valves (globe type is very expensive). Does valve authority matters when using BF valves for flow control application?





RE: Control Valves - Large sizes - Authorities
You need to maintain valve authority for any control application otherwise control will not be stable.You can odrer BF valve to suit your application ie equal percentage or linear depending on the characteristics of your sysem.Equal percentage is suitable for cooling coils where as linear charactericks will suit a heating coil.
From the size of the valve, it seems like you are trying to contol the plate heat exchanger on a district cooling/heating system.
RE: Control Valves - Large sizes - Authorities