Impulse Turbine
                   Reaction Turbine
 

Type descriptions of multi-stage steam turbines on building block system

Symbol
  N—Normal pressure in outer casing
  H—High pressure in outer casing
  E—Extraction turbine
  G—Backpressure turbine
  K—Condensing turbine
  W—Double flow turbine

Type identification
  NK 32/28/0
  N-Admission condition mark (N is normal pressure)
  K-Exhaust section (K is condensing type)
  32-Marking size of outer casing(inner radius of wheel box of outer casing)
  28-Marking size of rotor(root diameter of end stage rotor)
  0-Extension section mark 0—without extension section