DeFlo Desuperheater MSD/VSD
Variable Spray Desuperheater (VSD) - In order to recover lose of performance in a MSD or simple spray Desuperheater under low load conditions, variable nozzle spray type Desuperheater are recommended where as the load is reduced the spray nozzle area is also reduced.
Mechanical Spray Desuperheater (MSD) or Simple Spray Desuperheater - This is the most basic type of Desuperheater, consisting of a fixed area nozzle arranged to face downstream at or near the Desuperheating pipe. The MSD relies on the pressure differential available across the nozzle to achieve the conditions for rapid absorption of the water into the steam.