The biggest feature of this Sletpetro choke valve is the
combination of a ported cage choke and a plug valve. The
choke portion of the valve is used to throttle high velocity flows
while the plug valve portion of the valve remains full open. The
plug valve portion is protected by the choke from high velocity
erosive flow. Because of the combined use of the two halves of the
valve, high velocity erosive flows can be throttled without
degrading the positive shutoff performance of the valve.
