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Control systems Desuperheaters
Typical installation (mm)
Nozzle
ØD (Piping diameter)
6A/6A1/9A1
6" to 24" (DN150 to DN600)
6B/9B 6C
8" to 24" (DN200 to DN600)
6D/3C6D 6E/3C6E/9E
4.8 28
Thermal sleeve
100 mm min.
Steam
500 mm
1500 mm
Pneumatic supply The maximum allowable compressed air supply pressure to the actuator is 6.21 bar g (90 psi g). Higher pressures must be regulated in accordance with this limitation. The DA position should be controlled by a positioner. In the event of a pneumatic or signal failure, the actuator will fail to a position that closes the water supply to the steam.
Positioners Positioners are available upon request.
TI-P605-10 TES Issue 5
Page 6 of 11
DA Series Variable Area Desuperheaters
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