The instrument air supply for our plant comes from another plant.
We have been informed that the minimum instrument air supply have been increased from 3.5 bar to 5.5 bar.
I want to understand what will be the consequences of this change regarding existing valve actuators
Do you not have regulator on your incoming supply or each machine, if you do just turn it down to 3.5 bar and nothing changes, or am i missing something ?
Unfortunately i don't think anybody will be able to help with this one unless you list EVERY type of valve actuator you have in your plant.
Please can you explain what you mean by "stick closed" and why?The increase from 3.5 Bar (50 PSI) to 5.5 bar (80 PSI) may cause some valves to stick closed.
We have pressure regulators in control valves, but not in on/off valves. Do we have to expect any issue with them?As others have posted, we expect machines to have a pressure regulator for the incoming air. On these machines, there won't be a problem. You won't see any difference in operation.