Basic Documentation

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Modulating Control Valves with Magnetic Actuators
PositioningControlandPositionFeedback
forHotWaterandSteam
Description
MVF461HSeriesModulatingControlValvesarecontrolvalveswith
magneticactuators,formodulatingcontrolofhotwater,high
temperaturehotwater,andsteam.
Features
• Fastpositioningtime(<2seconds)
• Selectablevalvecharacteristic:Equalpercentage
orlinear
• Selectablestandardinterface:0/2to10Vdcor
0/4to20mA
• Highresolution(>1000:1)
• Highrangeability
• Wear-freeinductivestrokemeasurement
• SpringreturnA
→ ABclosedwhende-energized
• Positioningcontrolandpositionfeedbacksignal
• Low-friction,heavy-dutyandmaintenance-free
Applications
TheMVF461H...ControlValvesarethrough-portvalveswith
magneticactuators.Theactuatorisequippedwithanelectronics
moduleforpositioningcontrolandpositionfeedback.Ifthepower
isoff,thevalvecontrolpathA
→ ABisclosed.
Theshortpositioningtime,highresolutionandhighrangeability
makethesevalvesidealforproportionalcontrolofdistrictheating
stations,andheatingapplicationsusinghightemperaturehotwater
andsteam.
Wiring Diagram
SSEN0346R1
G0
G
F
Controller
Transformer
AC/DC 24 V Operating voltage
U
U
Z
G0
G
Y
M
0 to 10Vdc / 2 to 10Vdc
0 to 20 mA / 4 to 20 mA
Y
M
0 to 10Vdc / 2 to 10Vdc
0 to 20 mA / 4 to 20 mA
System neutral (SN)
Control signal
System potential (SP)
Measuring neutral (= G0)
Positioning feedback signal
Override input