Control systems Desuperheaters
4
Which desuperheater is right for my application? This is a general guide and does not represent every option available. Please contact us if you have any queries regarding selection for your specific application.
Start
Yes
Are process parameters relatively fixed? Turndown < 2:1
SND or STD
No
Yes
Is residual superheat? > 74 °C (165 °F)
No
Yes
Is turndown? < 4:1
VTD or SAD without recycle
4.8 7
No
Yes
Yes
Is turndown? < 5:1
Is application part of a pressure reducing station?
No
No
Yes
Yes
Is turndown? > 50:1
Is it a vertical installation?
No
No
Yes
Yes
SAD without recycle
Is application part of a pressure reducing station?
Is auxillary steam available as an atomising source?
No
Yes
SAD with recycle
Is auxillary steam available as an atomising source?
No
Consider a number of appropriate units in parallel
Sizing and selection software It is necessary to use our online sizing and selection software so that the desuperheater can be correctly specified and ordered. The software will generate a desuperheater data sheet and general assembly detail drawing of the resulting product. Please refer to TI-P475-06 'Desuperheater Online Programme Sizing Guidance' for further information.
TI-P475-01 TES Issue 5
Page 7 of 9
Direct Contact Desuperheaters
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