Still an additional object of the invention is to provide {HEAD ~ an adjustable pressure} reducing {TAIL ~ valve} for maintaining the pressure inside the turret below a pre determined point 
Still an additional object of the invention is to provide { HEAD ~ an adjustable pressure } reducing { TAIL ~ valve } for maintaining the pressure inside the turret below a pre determined point
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH