I want know any kind of usual pressure control valve and information about those in detail whith figure and control circuit.if anyone have information about those item please described to me as bellow step
step1:how does it work in detail with airset,actouator,positioner
step2:how does it...
when we test the one test package ,sometimes in the end line we have gate&globe valve , we isolated the valve from line and cap the line.why cannot we close the valve and dont use cap.