Choke Valves

Reliable Choke Performance

Hydril Pressure Control offers two high performance choke product lines.  “Sleeve” design valves are for critical service applications and “plug” design valves are for moderate to severe applications.  Standard models in the sleeve design line are the CFB, BFB and BFC.  Standard models in the plug design line are the PRB and PRC.  All of these choke are known for their high performance in the field, which can be attributed to the benefits of the design that include:

  • An extended seat nozzle in the BFC, BFB and PRB models contains the destructive energy along the flow path within the trim for additional valve body protection.
  • Hydril's patented seat seal in the BFB and BFC models provide positive shut-off.
  • Interchangeable trims between the BFB and PRB without modification of the valve body.
  • Interchangeable trims between the BFC and PRC without modification of the valve body.
  • Hydril's patented Stem Seal Stack which provides constant radial loading and allows redundant sealing in a standard seal gland.
  • Balanced trim designs that substantially reduce the torque needed to operate the valve.
  • Large annulus areas around trim which decrease potential for erosion.
  • 2" In-line sleeve choke valve also available.

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