By this mechanism {HEAD ~ high flow rates} are accommodated without causing premature activation of {TAIL ~ the safety relief valve} 
By this mechanism { HEAD ~ high flow rates } are accommodated without causing premature activation of { TAIL ~ the safety relief valve }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL