Brochure
12 | Fisher
®
Power Solutions
The Main Steam System
PRODUCT FEATURES
HP/IP/LP Turbine Bypass Valve
Turbine bypass systems are essential for the exible
operation of combined cycle power plants, as well
as large modern coal red plants. Turbine bypass
systems permit operation of the steam generator
independently of the turbine during startup,
shutdown, and plant upset conditions. They must be
adequately sized to meet the needs of normal startup
and shutdown, as well as transients. They must also
operate at acceptable noise levels.
Fisher turbine bypass systems enhance operational
exibility during transient operating conditions. As a
result, startup times are reduced and equipment life
and overall plant availability is increased.
n Custom designs meet piping arrangements.
n Noise abatement technology and rugged cage guiding reduces noise levels to provide smooth and
stable operation.
n Variable geometry spray nozzles ensure complete mixing and rapid vaporization of spray water for efcient
temperature control.
n Repeatable Class V shutoff at temperatures up to 593° C (1100° F).
n Enhanced designs engineered to withstand high thermal cycling applications.
n High rangeability for excellent system control.
n Pneumatic piston actuator for highly accurate step positioning and stable valve response.