PRODUCT DATA
® U.S. Registered Trademark
Copyright © 1999 Honeywell Inc. • All Rights Reserved
ML7425A,B
Spring Return Electric Linear
Valve Actuator
APPLICATION
The ML7425A,B Spring Return Electric Linear Valve
Actuators are modulating control actuators used with controls
that provide an analog output of 0 to 10 Vdc or 2 to 10 Vdc.
These actuators operate standard Honeywell valves in
Heating, Ventilating, and Air Conditioning (HVAC)
applications. An internal selector plug can be used to reverse
the direction of action.
FEATURES
• Quick and easy installation.
• No separate linkage required.
• ML7425A extends actuator stem on power failure;
ML7425B retracts actuator stem on power failure.
• Conduit connector is standard.
• No adjustments required.
• True spring return on power failure.
• Accurate valve positioning.
• Low power consumption.
• High close-off ratings.
• Force-limiting end switches.
• 0 to 10 Vdc or 2 to 10 Vdc signal input.
• Position feedback signal.
• Direct/reverse action.
• Fail-safe position selection.
• Synchronous motor.
• Corrosion resistant design.
• Maintenance free.
Contents
Application ....................................................................... 1
Features ........................................................................... 1
Specifications................................................................... 2
Installation ........................................................................ 3
Operation ......................................................................... 7
Checkout .......................................................................... 8
Ordering Information ........................................................ 8
63-2518-3
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