{HEAD ~ The valve device} in {TAIL ~ the closed system}, in which the bellows 11 and 12 are parts, takes a position such that flow from the bellows 11 into the bellows 12 is stopped 
in
{ HEAD ~ The valve device } in { TAIL ~ the closed system } , in which the bellows 11 and 12 are parts , takes a position such that flow from the bellows 11 into the bellows 12 is stopped
HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH