Brochure

Offshore Solutions | 9
By moving the compressor’s
operating point closer to
the surge limit line, you can
operate more efficiently.
Safely Operate Closer to Compressor Limits
Compressors can be the most critical and expensive
components on your offshore asset. To minimize unplanned
downtime, equipment damage, and risks to personnel
safety, it’s critical to have a system and valve that recognize
an impending surge condition and take immediate action to
prevent it.
Typical methods for maintaining surge control include either
a blow-off to atmosphere or recirculation from the outlet to
the inlet of the compressor. The anti-surge control strategy is
tightly integrated with the compressor load control strategy.
The control strategy requires not only a fast-acting controller,
but a fast-acting valve with properly selected noise-attenuating
and vibration-reducing trim to release or recirculate the flow.
Fisher optimized digital valves (ODV) and the predictive
diagnostic capability of the FIELDVUE digital valve controller
make it easier for operators to protect the compressor and
ensure valves are working properly. Using the FIELDVUE
digital valve controller, you can remotely check for valve
packing friction, air leaks, stuck valves, and even analyze valve
health while in-service or offline. With an antisurge valve that
moves with greater speed, precision, and control, you can
push the compressor’s operating point closer to the surge
limit—increasing efficiency, while avoiding process upsets
and compressor failure. Fisher control valves and instruments
exhibit industry-leading dynamic performance.
Scan the code to learn more about the
FIELDVUE DVC6200 digital valve controller
with stainless steel housing to handle
abrasive offshore environments.
The FIELDVUE digital valve controller offers
antisurge-specific tuning capability that is an
integral part of the Fisher ODV package.