Are Pressure Regulating/reducing Valves SCADA controlled ??

[meghnesh]

Hi..

I want to know something about Pressure Reducing valves & pressure regulating valves.
I understand their purpose.
But wanted to know whether these valves are SCADA controlled valves ??
If yes, then how are they controlled ?
On Analog output or Digital Output control ?
And also do they provide any feedback to PLC as DI or AI ?

Thanks in advance !!!

 

[danatomega]

In my experience, you would use an analog pressure regulator and also an analog pressure transducer as feedback. Maybe some devices combine the two.

 

[Tom Jenkins]

The answer to each of your questions is "sometimes". There are a tremendous variety of valves and pressure regulation systems available and an even greater variety of applications.

 

[boneless]

A lot of pressure/temperature control valves are self controlling to:

http://www.spiraxsarco.com/resource...f-acting-temperature-controls-and-systems.asp

It often depends on the availability of a control system, how much to you want to tweek on a controller and how much funds are you spending.

 

[shooter]

I/P converters, and yes we do use a lot of them to control gas powered brinevalves.