means for separating {TAIL ~ the compressed air} flowing in the instrument air path into a first path which provides actuating air to the means for controlling operation of the inlet valve and the means for controlling operation of the depressurizing valve means, and a second path which provides a source of {HEAD ~ signal air} 
means for separating { TAIL ~ the compressed air } flowing in the instrument air path into a first path which provides actuating air to the means for controlling operation of the inlet valve and the means for controlling operation of the depressurizing valve means , and a second path which provides a source of { HEAD ~ signal air }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD