Page 25 - Steam Turbines Design, Applications, and Rerating
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6 Chapter One
hand-operated shutoff valves. Hand valves (arrow, Fig. 1.6) may be
specified for reduced steam consumption at part load or overload, or for
design load with reduced steam pressures. Hand valves are not auto-
matic and are only of value when manually operated as needed.
Figure 1.4 Steam flow through turbine stages. (The Elliott Company, Jeannette, Pa.)