This result is achieved by providing within the circuit a safety relief valve control valve which acts to modulate {HEAD ~ the operation} of {TAIL ~ the safety relief valve} when there is flow from the outflow port 
of
This result is achieved by providing within the circuit a safety relief valve control valve which acts to modulate { HEAD ~ the operation } of { TAIL ~ the safety relief valve } when there is flow from the outflow port
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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH