Anti Surge Valve Sizing

sizing
Estimate or measure something's dimensions
Form an estimate or rough judgment of someone or something
Alter or sort in terms of size or according to size
size: any glutinous material used to fill pores in surfaces or to stiffen fabrics; "size gives body to a fabric"
(sized) having the surface treated or coated with sizing
(sized) having a specified size

surge
A sudden large increase, typically a brief one that happens during an otherwise stable or quiescent period
rush: a sudden forceful flow
a sudden or abrupt strong increase; "stimulated a surge of speculation"; "an upsurge of emotion"; "an upsurge in violent crime"
A sudden powerful forward or upward movement, esp. by a crowd or by a natural force such as the waves or tide
A major deployment of military forces to reinforce those already in a particular area
billow: rise and move, as in waves or billows; "The army surged forward"

valve
A membranous fold in a hollow organ or tubular structure, such as a blood vessel or the digestive tract, that maintains the flow of the contents in one direction by closing in response to any pressure from reverse flow
device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone
control consisting of a mechanical device for controlling the flow of a fluid
A cylindrical mechanism in a brass instrument that, when depressed or turned, admits air into different sections of tubing and so extends the range of available notes
A device for controlling the passage of fluid through a pipe or duct, esp. an automatic device allowing movement in one direction only
a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it

anti
not in favor of (an action or proposal etc.)
Opposed to; against
a person who is opposed (to an action or policy or practice etc.); "the antis smelled victory after a long battle"
Antaeus in Greek mythology was a giant, the son of Poseidon and Gaia, whose wife was Tinjis. Greeks of the sixth century BCE, who had established colonies along the coast, located him in the interior desert of Libya.