Back To Top
Fisher™ DVI Steam Conditioning Desuperheater
Fisher DVI Desuperheater
The Fisher DVI desuperheater injects spraywater in the outlet of the venturi section, assuring excellent mixing and rapid atomization.
The DVI desuperheater is easily installed between flanges in DN25 through DN600 (NPS 1 through 24) steam lines. There are no moving parts, and the water injection pattern provides rapid and thorough cooling. It is intended for applications with moderate load changes and low velocity steam.
Fisher™ DVI Steam Conditioning Desuperheater


Critical Service
Steam Conditioning
SA105, F22, F91
Operating Temperature
High Temperature
Pressure Class
Process Connection Type
Flanged, Butt Weld, RTJ, Socket Weld
Valve Size
NPS 1 through 24
Valve Size Standard
Other Configurations
Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.


  • Accurate temperature control near saturation. Optimized spray pattern with optional AF nozzle technology allows for a wide operating range to achieve optimal mixing and quick vaporization at all flowing conditions.
  • Nozzles can be easily removed, maintained, or replaced without having to replace the entire unit.
  • The body is constructed from forged materials with no welds present in the flow stream.
  • The DVI desuperheater can be located wherever is convenient in the pipeline.
  • The DVI desuperheater is easily installed between flanged steam lines.
  • The DVI desuperheater is available in sizes as small as NPS 1.