Level Control Systems
D-SK 2000 On-Off Level Control and Alarm System
New-generation 24VDC on-off level control and alarm system with conductivity-type level measurement, 7-segment display, test and reset buttons, and automatic latching function.
Detail
SK 2000 On-Off Level Control and Alarm System
220VAC on-off level control and alarm system with SK 2400 panel-mounted controller, SD 2400 conductivity-type probe, LED indication, configurable alarms and PN 40 pressure class.
Detail
SK-T 2400 Compact On-Off Level Control and Alarm System
Compact boiler-mounted on-off level control and alarm system integrating SK 2400 control and SD 2400 conductivity-type level detection in one aluminium enclosure, with 220VAC supply and PN 40 pressure class.
Detail
D-SK 3000-2 Modulating (Proportional) Level Control and Alarm System
New-generation 24VDC modulating level control and alarm system built around the D-SK 3400 touchscreen controller, SD 3400 project-specific capacitive probe and SKV 3400 2-way proportional feedwater control valve.
Detail
SK 3000-2 Modulating (Proportional) Level Control and Alarm System
Modulating level control and alarm system with SK 3400 panel-mounted LCD controller, SD 3400 project-specific capacitive probe and SKV 3400 2-way proportional feedwater control valve.
Detail
D-SK 3000-3 Modulating (Proportional) Level Control and Alarm System
New-generation modulating level control and alarm system with D-SK 3400 touchscreen controller, SD 3400 project-specific capacitive probe and SKV 3400 3-way proportional feedwater control valve with direct recirculation outlet.
Detail
SK 3000-3 Modulating (Proportional) Level Control and Alarm System
Modulating level control and alarm system with SK 3400 panel-mounted LCD display controller, SD 3400 project-specific capacitive probe and SKV 3400 3-way proportional feedwater control valve with recirculation outlet.
Detail
SD-AY 420A / 4-20 mA Capacitive Level Transmitter
Capacitive level transmitter providing continuous 4–20 mA level information, with local minimum-maximum calibration, 24VDC supply, PN 40 pressure class and project-specific probe lengths.
Detail
Reliable Boiler Water-Level Management
Accurate water-level control is essential for safe and efficient steam boiler operation. VIRA level control systems monitor boiler water level and operate the feedwater pump or proportional control valve according to the selected control principle and application requirements.
On-Off and Proportional Control Options
VIRA solutions are available for on-off feedwater pump control and proportional feedwater control. On-off systems operate the pump between defined switching levels, while proportional systems regulate the feedwater control valve to support stable level control under changing steam demand.
Conductivity and Capacitive Measurement Principles
Depending on the application, level measurement can be based on conductivity or capacitive measurement principles. Conductivity probes are suitable for conductive liquids such as boiler water, while capacitive probes provide a project-specific alternative for continuous level measurement and proportional control applications.
Alarms, Indication and Integration
Selected VIRA systems provide configurable high and low water-level alarms, local LED, 7-segment or LCD indication, and continuous 4–20 mA level information where required. Product options include compact boiler-mounted units as well as panel-mounted and DIN-rail-mounted controllers, allowing the system to be selected according to the installation and control-panel requirements.
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