Type 973 Extended Fin Globe Control Valve


The U.S. Type 973 globe control valve is designed for modulating flow control in industrial or research applications at 1000° F (537° C) or less and at pressures less than 5000 psi (344 bar). The added bonnet length and fins serve to reduce the heat at the packing area. The heat reduction allows the standard CV ring packing to be used at higher process temperatures than could normally be tolerated with the standard valve.


Type 973 valves are widely used in high-temperature applications where steam, hot water, hot hydraulic oil, or other fluids and gases must be controlled precisely at temperatures exceeding the limits of the standard finned bonnet valve. Follow the appropriate pressure and temperature rating of the body material and the packing and trim material.




  • 1/4 in. (6 mm), 1/2 in. (12 mm), 3/4 in. (19 mm) and
    1 in. (25 mm) models
  • Interchangeable trim sets
  • Extended cooling fin bonnet
  • Trim characteristics: Linear, equal percent, quick open or
    double taper
  • TFE chevron packing
  • ANSI Class IV shutoff (size O and larger)
  • High-temperature rating


  • Butt and socket weld ends, BSPP, tube connection, and others
  • Bellows packing solutions
  • Angle pattern body
  • Reduced Emissions Kalrez® (REK), graphite, spring-loaded
    chevron and others
  • Exotic alloys for complete valves or trims
  • Stellite trims & soft seats (PTFE & Kel-F)
  • TiN coating of inner valve stem and seat