A control valve is disclosed which is capable of supplying {HEAD ~ a required control pressure} to {TAIL ~ an actuator} such as a brake booster, for example 
to
A control valve is disclosed which is capable of supplying { HEAD ~ a required control pressure } to { TAIL ~ an actuator } such as a brake booster , for example
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH