(918) 258-7035 (800) 324-7035 24/7 Emergency

A revolutionary way to control very high pressure drop fluid flow. A high capacity, high recovery control valve able to withstand continuous choked-flow conditions throughout its control range. The unique, least disruptive, axis-symmetrical annular flow path directs high velocity, vaporized fluid away from fluid boundaries throughout the entire range of control.


  • Hydrocarbon refining systems requiring high pressure/high differential precision pressure control
  • Injection pump pressure control
  • Backpressure regulation for pump testing systems
  • Boiler feed water injection flow control
  • Natural gas production flow control when fluid is contaminated with water and erosive solids
  • Any fluid control application where cavitation damage to control valves has been observed

How A Severe Service Control Valve Works

  • The valve Stem rotates by a multi-turn electric actuator in response to control signal.
  • The pinion gear on the Stem engages teeth on the Sleeve arranged on a helical path.
  • The Power Threads on the sleeve have the same pitch as the helix of the Sleeve teeth, causing it to translate as it rotates.
  • The Plug is fixed to the intake hub of the valve body, with the contoured center portion suspended in the center by vanes on the upstream side.
  • Fluid flow is modulated as the distance between the Seat and Plug changes.


  • Multi-turn valve stem for precise control with low torque requirement.
  • Complies with API 6A or ASME B16.34 for materials and construction.
  • Triple-sealed to contain process fluid up to 450F.
  • Ultralubeâ„¢ coated flow path and actuation components.
  • Nitrocarburized 17-4PH stainless steel trim components.
  • Tungsten carbide or 440C Seat, TC Plug optional.
  • End configurations to suit wide variety of applications.
  • Rotary-to-linear internal actuation employing the helical bevel gear drive system
    (U.S. patents 9,103,421 and 9,404,561. International Pub. No. WO 2014/186437 A1).

Product Information
Product Fact Sheet

Atlas Severe Service Control Valves

Atlas Severe Service Control Valves

Atlas Severe Service Control Valves

Atlas Severe Service Control Valves

Need Assistance? Contact Us