In {TAIL ~ this manner}, {HEAD ~ the valve} provides consistent flow control characteristics in each flow direction 
In
In { TAIL ~ this manner } , { HEAD ~ the valve } provides consistent flow control characteristics in each flow direction
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH