The valve further includes a second diaphragm cooperating with {HEAD ~ the first diaphragm} to enclose a chamber formed within {TAIL ~ the valve body} 
The valve further includes a second diaphragm cooperating with { HEAD ~ the first diaphragm } to enclose a chamber formed within { TAIL ~ the valve body }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL