Desuperheating (cooling) the steam can simply be achieved by inject water into the steam flow. When injected, the water is evaporated by means of the desuperheater nozzles. Thereby the water absorbs heat and consequently the temperature of steam is reduced.The desuperheater type DKV is designed so, theat even at low injection water quantities an efficient spray of very fine droplets (mist) is obtained. When increasing the stroke, the water injection will increase with a modified parabolic flow characteristic. 

The nozzles in the sprayhead are designed to give the injection water a high velocity and a radial rotating movement under all conditions. The result is a fine pressure atomisation and very quick evaporation.

Features of the DKV desuperheater:

  • 3 types of control characteristics, for accurate temperature control
  • Large delta p water/ steam pressure difference of 100 bar (1450 psi) can be applied without an external control valve
  • Excellent atomising characteristics at a delta p water/ steam of min. 10 bar (145 psi) and at min. steam velocity of 10 m/s.
  • Tight shut-off. No leakage in closed position
  • No additional control valve required
  • High reliability due to simple party, minimal wear
  • Excellent control accuracy for the whole control range