A surge suppression apparatus 6 wherein said larger effective cross sectional area is at the end of {TAIL ~ the diaphragm follower} remote from {HEAD ~ the diaphragm} 
A surge suppression apparatus 6 wherein said larger effective cross sectional area is at the end of { TAIL ~ the diaphragm follower } remote from { HEAD ~ the diaphragm }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD