Product Overview

2/12
Siemens Modulating control valves with magnetic actuators, PN 16 CE2N4461en
Building Technologies 17.06.2009
Type summary
Type reference DN k
VS
Δp
max
Δp
S
Positioning
[m
3
/h] [kPa] [kPa]
Operating
voltage
signal time
Spring
return
MXG461B15-0.6
0,6
MXG461B15-1.5
1,5
MXG461B15-3
15
3
1000 1000
MXG461B20-5
20 5 800 800
MXG461B25-8
25 8 700 700
MXG461B32-12
32 12
MXG461B40-20
40 20
MXG461B50-30
50 30
600 600
AC /24 V
DC 20…30 V
DC 0…10 V
or
DC 2…10 V
or
DC 0…20 mA
or
DC 4...20 mA
< 2 s

Δp
max
= max. permissible differential pressure across the valve’s control path, valid for the entire
actuating range of the motorized valve
Δp
S
= max. permissible differential pressure (close off pressure) at which the motorized valve will
close securely against the pressure (used as throughport valve)
Type
reference
Description
Z366
Stem heating element for media temperatures < 0 °C, AC / DC 24 V, 10 W
When ordering, please give quantity, product name and type reference.
Valve body and magnetic actuator form one assembly and cannot be separated.
The brass / bronze fittings are part of the delivery.
The Z366 stem heating element is delivered in a separate package.
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 12.
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. The internal positioning controller
balances any disturbance in the system rapidly and delivers the position feedback
signal. The valve stroke is proportional to the positioning 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. In case of DC power supply, a 4-wire connection is mandatory!
Accessories
Ordering
Type reference Stock number Description
MXG461B15-0.6 MXG461B15-0.6 Threaded valve with magnetic actuator
Z366 Z366 Stem heating element
Delivery
Replacement
electronics module
A
SE12
Rev. no.
Control operation
Control