Spring Assisted Multiple Nozzle Spray Desuperheater (SAMN-U)

Spring Assisted Multiple Nozzle Spray Desuperheater (SAMN-U)

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The spring assisted multiple nozzle desuperheater reduces steam or gas temperatures by introducing cooling liquids directly into the hot vapor.

Specification

Features

Copes-Vulcan’s SAMN-U has six nozzles which can be opened or closed to vary the coolant flow. This provides a higher turndown than single nozzle units where the amount of coolant flow is dependent only on the ability to vary the pressure drop across the nozzle.

SAMN-U contains an integral spring-loaded flow plug which moves in response to a change in pressure differential between the coolant inlet pressure and the main header pressure. As the plug moves, more or fewer nozzles are uncovered, introducing more or less coolant into the main header. The cooling water inlet pressure is controlled by a Copes-Vulcan Severe Duty or General Service Globe Valve.

  • Rangeability as high as 9:1
  • Temperature control to within 15°F (8°C) of saturation with the ability to hold set point within a tolerance of 10°F (6°C)
  • Standard maximum available Cv of 2.50 (Kv of 2.16); higher capacity available
  • Available in standard classes 150, 300, 600, 900, 1500 and 2500 per ANSI B16.5
  • Cooling water pressure minimum of 225 psi (1550 kPa) to a maximum of 1000 psi (6900 kPa) above the steam header pressure at the inlet
  • Mounting commonality with ‘U’-Series desuperheaters

Benefits

Specifications

SERIES
DESIGN
SIZE RANGE
PRESSURE CLASSES
TEMPERATURE RANGE

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