The valve's enter would be the "Management signal." This may originate from many different measuring units, and each distinctive force is a distinct set place for any valve. A normal normal sign is 20–a hundred kPa. By way of example, a valve may be managing the pressure in a very http://pneumaticactuator82376.spintheblog.com/16386581/an-unbiased-view-of-pneumatic-actuator