The diaphragm 4 is moved with a suction stroke in direction B and a delivery stroke in direction C by means of a hydraulic fluid contained in a working chamber 9, that also includes {HEAD ~ a conventional device} 10 for compensating {TAIL ~ leaks} 
for compensating
The diaphragm 4 is moved with a suction stroke in direction B and a delivery stroke in direction C by means of a hydraulic fluid contained in a working chamber 9 , that also includes { HEAD ~ a conventional device } 10 for compensating { TAIL ~ leaks }
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 HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL