Data Sheet for Product

ManualsBrandsSiemens ManualsMagnetic (BC2)Modulating control valves, PN16, MXG461B.., MVF461H..

Siemens Building Technologies, Inc.

MVF461H Series

Technical Instructions

Document No. 125-4361

June 17, 2008

Modulating Control Valves with

Magnetic Actuators, Positioning

Control and Position Feedback for

Hot Water and Steam

Description

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 (>1:1000)

• 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

• Phase-cut signal input for Staefa controllers

Product Numbers

See Table 1.

Warning/Caution

Notations

WARNING:

Personal injury or loss of life may occur if you do not

follow the procedures as specified.

CAUTION:

Equipment damage or loss of data may occur if you

do not follow the procedures as specified.

Application

The MVF461H Series valves are through-port or mixing 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.

Summary of content (10 pages)

PAGE 1
Technical Instructions Document No. 125-4361 June 17, 2008 MVF461H Series Modulating Control Valves with Magnetic Actuators, Positioning Control and Position Feedback for Hot Water and Steam Description Control valves with magnetic actuators, for modulating control of hot water, high temperature hot water, and steam.
PAGE 2
Technical Instructions Document Number 125-4361 June 17, 2008 MVF461H Series Modulating Control Valve with Magnetic Actuator Table 1. Product Numbers. Pmed (W) IN Fuse Wire Gauge (AWG) 16 14 12 L (ft) 33 15 3.15 130 215 360 145 33 15 3.15 130 215 360 145 145 33 15 3.15 130 215 360 5.9 145 145 33 15 3.15 130 215 360 1 9.4 145 145 33 15 3.15 130 215 360 MVF461H32-12 1-1/4 14.0 145 145 43 20 4 100 165 260 MVF461H40-20 1-1/2 23.3 145 145 65 20 6.
PAGE 3
MVF461H Series Modulating Control Valve with Magnetic Actuator Control Technical Instructions Document Number 125-4361 June 17, 2008 The magnetic actuator can be driven by any controller with a 0/2 to 10 Vdc or 0/4 to 20 mA output signal. To achieve optimum control performance, using a 4-wire connection for the valve is recommended. The controller’s signal ground terminal M must be connected to the valve’s terminal M.
PAGE 4
Technical Instructions Document Number 125-4361 June 17, 2008 Manual adjustment MVF461H Series Modulating Control Valve with Magnetic Actuator Press (a) and turn the hand wheel (b): a Man • clockwise (CW). Control path A → AB can be mechanically opened to between 80% and 90%, or Off b Auto b • counterclockwise (CCW). The actuator will be switched off and the valve closed.
PAGE 5
MVF461H Series Modulating Control Valve with Magnetic Actuator Technical Instructions Document Number 125-4361 June 17, 2008 DIP Switches, Continued ON Y OFF ON ON ON OFF OFF OFF V V SSEN0339R1 OFF 0 to 10 V 2 to 10 V 0 to 20 mA 4 to 20 mA ON OFF . SSEN0340R1 ON ON OFF OFF Ri > 500 0 to 10 V 2 to 10 V Ri < 500 0 to 20 mA 4 to 20 mA Y Y Figure 5. Selection of Valve Characteristic: Equal-Percentage or Linear. Figure 4. Assignment of Positioning Signal Y: Voltage or Current.
PAGE 6
Technical Instructions Document Number 125-4361 June 17, 2008 MVF461H Series Modulating Control Valve with Magnetic Actuator Characteristic V [%] V [%] 90064 100 100 80 80 60 60 40 40 20 20 0 0 2 4 6 8 10 [V] 2 6 10 [V] 4 12 20 [mA] Figure 8. Equal Percentage. Installation Notes 0 0 2 4 6 10 [V] 8 2 6 10 [V] 4 12 20 [mA] Figure 9. Linear. • Installation instructions for the valve and terminal housing are enclosed with the valve.
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MVF461H Series Modulating Control Valve with Magnetic Actuator Specifications, Continued Functional data of actuator Functional data of valve Technical Instructions Document Number 125-4361 June 17, 2008 Input Positioning signal Y Impedance 0/2 to 10 Vdc 0/4 to 20 mA Forced control Impedance Closing the valve (Z connected to G0) Opening the valve (Z connected to G0) No function (Z not wired) 0/2 to 10 Vdc, 0/4 to 20 mA, or 0 to 20 Vdc Phs 100K ohm//5nF 240 ohm//5nF 22K ohm <1 Vac; <0.
PAGE 8
Technical Instructions Document Number 125-4361 June 17, 2008 Specifications, Continued MVF461H Series Modulating Control Valve with Magnetic Actuator Degree of protection Canadian registration number IP31 to IEC 529 0C12337.5 Conforms to CE requirements UL 873 Certified to Canadian standard C22.2 No. 24 C-Tick N-474 PED 97/23/EC: pressure-carrying parts Par. 1, section. 2.1.4/Par.
PAGE 9
MVF461H Series Modulating Control Valve with Magnetic Actuator Application Examples Technical Instructions Document Number 125-4361 June 17, 2008 This example shows only a schematic diagram, without installation-specific details. CAUTION: SSEN0120R1 SSEN0119R1 Valve may only be used in flow direction (A → AB). Note the flow direction. Figure 13. Direct Heating (Supply) System, Indirect Connection. Figure 14. Direct Heating (Supply) System, Directly connected to WaterHeating System.
PAGE 10
Technical Instructions Document Number 125-4361 June 17, 2008 MVF461H Series Modulating Control Valve with Magnetic Actuator Dimensions min. 3.94 (100) 1.97 ł 50 F H łE SSEN0348R1 łK A AB łD ł D2 B L Figure 15. Dimensions in Inches (Millimeters). Product Number DN L ØD ØD2 B ØK H ØE F W lb (kg) MVF461H15-0.6 15 5.12 (130) 3.74 (95) 0.16×0.55 (4×14) 0.55 (14) 2.56 (65) 13.4 (340) 3.15 (80) 4.53 (115) 18.3 (8.3) MVF461H15-1.5 15 5.12 (130) 3.74 (95) 0.16×0.55 (4×14) 0.