O. Frommann et L. Friedel, Effect of pressure waves in the feed lines upon the performance of full lift safety valves, CHEM ENG TE, 23(9), 2000, pp. 765
During full lift safety valve venting of pressure loaded equipment, undesir
able instabilities in the valve disc movement, so-called fluttering or chat
tering, may occur due to temporary force imbalance on the valve disc. These
results among other things from the interactions between the now through t
he valve and flow in the valve inlet line after activation of the device ar
e presented.