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Fisher-P-DMA-AF-HTC

Fisher DMA/AF-HTC Desuperheater

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Product Description

The DMA/AF-HTC is functionally equivalent to the DMA/AF, however it is structurally suited for more severe applications. The most common applications include boiler interstage attemperation, where the desuperheater is exposed to high thermal cycling and stress, high steam velocities and flow induced vibration. In addition to this specific application, the DMA/AF-HTC is suitable for other severe desuperheating application environments.

Dane techniczne

Certifications
PED, CRN
Critical Service
Steam Conditioning
Material
SA105, F22, F91
Operating Temperature
High Temperature
Pressure Class
ASME
Process Connection Type
Flanged
Flange Size
3 and 4
Flange Size Standard
NPS
Other Configurations
Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.

Charakterystyka

  • An integral thermal liner inside the desuperheater body pipe reduces the potential for thermal shock when cool water is introduced.
  • Optimized spray pattern with AF nozzle technology allows for a wide operating range to achieve mixing and quick vaporization at all flowing conditions.
  • Nozzles can be easily removed, maintained, or replaced without having to replace the entire unit.
  • The nozzle mount for the DMA/AF-HTC is engineered to minimize the potential for excitation due to vortex shedding and flow induced vibration.
  • Multiple nozzle configurations are available to provide medium to large amounts of spraywater to cool steam to the required temperature.
  • Uses a forged construction, optimized to move weld joints away from high stress regions.

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