Data Sheet for Product

2/14
Siem ens Modulating control valves with magnetic actuator, PN 16 CE1N4361en
Building Technologies 2018-02-05
Type summary
Type reference DN k
VS
Χp
max
Χp
S
Operating
voltage
Positioning
Spring
return
[m
3
/h] [kPa] [kPa]
signal time
MVF461H15-0.6
15
0.6
1000
1000 AC / DC 24 V
DC 0...10 V
or
DC 2…10 V
or
DC 0…20 mA
or
DC 4...20 mA
< 2 s

MVF461H15-1.5
1.5
MVF461H15-3
3
MVF461H20-5
20 5
MVF461H25-8
25 8
MVF461H32-12
32 12
MVF461H40-20
40 20
MVF461H50-30
50 30
Χp
max
= max. permissible differential pressure across the valve’s control path, valid for the entire
actuating range of the motorized valve
Χp
S
= max. permissible differential pressure (close off pressure) at which the motorized valve will
close securely against the pressure (used as through-port valve)
k
VS
= nominal flow rate of cold water (5 to 30 °C) through the fully opened valve (H
100
) at a
differential pressure of 100 kPa (1 bar)
When ordering, please give quantity, product name and type reference.
Valve body and magnetic actuator form one assembly and cannot be separated.
Should the valve electronics prove faulty, the electronics module must be replaced by
the ASE12 replacement electronics module.
Mounting Instructions 74 319 0404 0 are included.
Overview table, see page 14.
Technical and mechanical design
For a detailed description of operation, refer to Data Sheet CA1N4028E.
The electronics module converts the positioning signal to a phase-cut power signal
which generates a magnetic field in the coil. This causes the armature to change its
position in accordance with the interacting forces (magnetic field, counterspring,
hydraulics, etc.). The armature responds rapidly to any change in signal, transferring
the corresponding movement directly to the valve plug, enabling fast changes in load to
be corrected quickly and accurately.
The valve’s position is measured continuously. Any disturbance in the system is rapidly
corrected by the internal positioning controller, which ensures that the positioning signal
and the valve stroke are exactly proportional, and also delivers the position feedback
signal.
The magnetic actuator can be driven by a Siemens controller or a controller of other
manufacture that deliver a DC 0/2...10 V or DC 0/4...20 mA output signal.
To achieve optimum control performance, it is recommended to use a 4-wire
connection for the valve. In case of DC power supply, a 4-wire connection is
mandatory!
The controller’s signal ground terminal M must be connected to the valve’s terminal M.
Terminals M and GO have the same potential and are internally interconnected in the
valve’s electronics.
If the positioning signal is interrupted, or in the event of a power failure, the valve’s
return spring will automatically close control path A ↑ AB.
Ordering
Type reference Stock number Description
MVF461H15-0.6 MVF461H15-0.6
Flanged valve with magnetic actuator
Replacement
electronics module
ASE12
Rev. no.
Control operation
Control
Spring return facility