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