Treating Iron

Choke Valves

SPM® choke valves, available in adjustable or positive models, restrict flow by reducing the flow area in the valve body to achieve the desired flow rate.

Adjustable choke valves use a stem and seat combination to control flow rate. Rate of flow can be adjusted by turning a hand wheel to achieve the calibrated orifice size and associated flow coefficient. An easy-to-read indicator, aligned with the V-notch machined onto the bonnet top, shows orifice size, and allows calibration in 1/64 inch increments.

Positive choke valves provide a fixed flow rate by using a choke bean. Flow rate is controlled by selecting a choke bean orifice size. These choke valves are manufactured in 2-inch and 3-inch sizes for operating pressures up to 15,000 psi.


  • Flowback
  • Fracking
  • Cementing
  • Well Service


  • Well completion