An additional broad aspect relates to a valve having {TAIL ~ an actuating diaphragm} that cooperates with a sealing diaphragm to open and close {HEAD ~ the valve} 
An additional broad aspect relates to a valve having { TAIL ~ an actuating diaphragm } that cooperates with a sealing diaphragm to open and close { HEAD ~ the valve }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD