Rotary Valves

Rotary Plug & Segmented Ball Valves

73.7 - Rotary Plug Control Valve

Size: 1" to 20"

ANSI Class: 600 and 900

Std. Materials: Carbon Steel, Stainless Steel, Low Temp Carbon Steel, (Special Materials on Request)

Temperature Range: -148 to 752oF (-100 to 400oC)

The Vetec 73.7 double eccentric rotary plug control valve is designed for heavy duty and severe service applications up to the limits of the ANSI 900 pressure class rating. These heavy duty and severe service applications include process events such as erosion, abrasion, corrosion, cavitation, and flashing found in most process control industries. The double eccentric rotary plug design increases flow capacities with only minor reduction in the pressure recovery factor making the design an ideal replacement for linear globe control designs even with cavitation and flashing process conditions present.

The Vetec 73.7 control valve has several standard options such as temperature extensions, heating jacket, special packing designs, noise attenuation and cavitation prevention trim sets, etc. The Vetec 73.7 can be assembled with a pneumatic, electric, hydraulic, or electro-hydraulic actuator also offered by the SAMSON group to complete the control valve construction. These control valves are designed according to the modular assembly principle, can be equipped with SAMSON GROUP actuators and valve accessories such as positioners, limit switches, and solenoid valves.

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Features & Benefits

  • Combines Rotary Efficiency with Globe Control Excellent Performance
  • Maximum flow capacity compared to globe and rotary plug with the straight through flow path
  • High rangeability of up to 200:1
  • Anti-blowout valve shaft design to increase reliability
  • Free flow path when open with less turbulence, reduced noise and wear on the internal and guiding parts
  • Double eccentric plug design eliminates friction when valve is opening/closing reduces wear in internal parts and required breakaway torques
  • Double eccentric plug design allows for the more accurate control vs. other rotary valve types
  • Only the highest grade materials are used for all internal components to ensure the longest possible service life