FMC Flowline Choke Throttle Valve

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In high-pressure pumping applications throttling is often required to control hydraulic fracturing fluids. Through collaboration with our customers FMC Technologies delivers real world innovation through a Choke Throttle Valve. Real World Innovation Pressure pumpers are faced with many situations where high velocity and erosive fluid needs to be throttled through a partially open plug valve. Neither plug valves nor standard chokes used to bleed frac lines or control cement flow have met customer' s durability expectations. Solution: The Choke Throttle Valve combines the best attributes of a ported cage choke and a plug valve. Pressure pumpers are now capable of throttling high velocity erosive fluids without degrading the positive shutoff performance of the valve. Summary The Weco Choke Throttle Valve is available in 1 inch at 15, 000 psi CWP. Advantage: Recommended service High pressure pumping applications where high velocity erosive fluid would normally need to be throttled through a partially open plug valve. Bleeding of frac lines and controlling cement flow are two such situations. Throttle Stem The stem travels inside the cage and controls the amount of flow through the cage’ s ports. Throttle Control A multi-turn nut is used to control the vertical travel of the throttle stem. Shut-off Control A quarter-turn control is operated with a standard plug valve bar to rotate the plug between the full open and full closed positions. Ported Cage Fluid flows radially leading to energy dissipation in the center of the ported choke cage. Plug The plug provides full shutoff capability. The plug is protected from throttling by being operated when the throttle stem is fully choked. The best attributes of a ported cage choke and a plug valve are combined in FMC’ s flowline choke 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.