admission
admission valve

bleed
bleed valve

blow-off
blow-off valve

bonnet
bonnet of valve

butterfly
butterfly valve

disc
disc valve

Eustachian
Eustachian valve

exhaust
exhaust valve

hammering
hammering of the valve

hydraulically
hydraulically operated valve

induction
induction valve

intake
intake valve

intercepting
intercepting valve

internal
internal safety valve

mitral
mitral valve

nonreturn
nonreturn valve

oilcan
valve oilcan

overcharge
overcharge valve

overload
overload control valve

piston
piston valve

reflux
reflux valve

regulating
regulating valve

regulator
regulator valve

reversing
reversing valve

scum
scum valve

selector
selector valve

semilunar
semilunar valve

thermionic
thermionic valve

valve
rectifying valve