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