Control valve assemblies for operating medium of turbo machinery
Applications
Dosage of operating media such as gas, oil, water and steam for turbo machinery, e. g. gas and steam turbines, as well as compressors.
Design
A "Voith control instrument" is the intelligent and compact electro-hydraulic combination of a Voith servo motor with a valve installation.
Special feature: fast-acting-shut down function, i. e. the drive shuts the valve by spring action independently in the event of an auxiliary energy failure.
Benefits:
- Precise and highly dynamic control of valves (virtually hysteresis-free)
- Complete, tested and factory-adjusted armatures with clear interfaces which allow start-up without control system adjustment
- Failure-insensitive arrangement, dirt-insensitive, temperature-independent design
- Fast-acting shut-down function: fast valve shut-down if tripping occurs (<300msec)
- Undershoot-free step response adjustable
- High availability due to failure insensitive and robust design
- Explosion-proof design optional
- Easy electronic adaptation of instruments if operating data changes
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