In some embodiments, the valve member has a first sealing surface for selectively substantially preventing {HEAD ~ fluid flow} through {TAIL ~ the first port} and a second sealing surface for selectively substantially preventing fluid flow through the third port 
through
In some embodiments , the valve member has a first sealing surface for selectively substantially preventing { HEAD ~ fluid flow } through { TAIL ~ the first port } and a second sealing surface for selectively substantially preventing fluid flow through the third port
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH