Application
Positioning of steam control valves in applications with critical availability.
Requirements
Maximum availability at reasonable price.
Solution
Redundant design of I/H converter to extend a redundant controller by redundant actuation for steam control valve positioning with maximum availability.
Technical features
Hysteresis: < 0,01 bar
Ambient temp.: -20° to 85° C
Oil quality: ISO 4406, cl. 16/13
Safety
Each I/H converter is provided with an electronic monitoring system ensuring that the I/H converter reduces the pressure toward minimum output pressure in case of failure. The output pressure of the properly working I/H converter is switched. The process continues smoothly. The deective device can be replaced during operation. |
