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ML6425, ML7425 SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS
63-2516—07 2
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or would like to comment on our products or services, please write or
phone:
1. Your local Honeywell Automation and Control Products Sales Office (check white pages of your phone directory).
2. Honeywell Customer Care
1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
3. http://customer.honeywell.com or http://customer.honeywell.ca
International Sales and Service Offices in all principal cities of the world. Manufacturing in Belgium, Canada, China, Czech
Republic, Germany, Hungary, Italy, Mexico, Netherlands, United Kingdom, and United States.
SPECIFICATIONS
Models:
Dimensions: Refer to Fig. 1.
Weight: 5.1 lb (2.3 kg).
Electrical Ratings:
Power Input: 24 Vac ±15%, 60 Hz.
Power Consumption:
ML6425: 11 VA maximum at 24 Vac.
ML7425: 12 VA maximum at 24 Vac.
Signal Source Output Resistance: 1 kOhm maximum.
Signal Load: 1 mA maximum.
Signal Inputs (Supply Voltage Between Terminals):
ML6425:
B and 24 Vac: Drive valve stem down.
W and 24 Vac: Draw valve stem up.
ML7425: 0 to 10 Vdc or 2 to 10 Vdc.
Stem Force: 135 lbf (600 N).
Actuator Stroke: 3/4 in. (19 mm).
Actuator Run Time at 60 Hz: 90 seconds.
Spring Return Time: 12 seconds.
Temperature Ranges:
Ambient: 14° to 122° F (-10° to +50° C).
Storage: -40° to +158° F (-40° to +70° C).
Maximum Valve Medium: 300° F (149° C).
Humidity: 5 to 95 percent relative humidity, noncondensing.
Close-off Pressure Ratings: Refer to Table 1.
Protection Standard: IP54.
Approvals:
Underwriter’s Laboratories, Inc. UL94-5V Flame Retardant.
Meets CE requirements.
Cable entry: Conduit connector and one knockout on case.
Actuator Material:
Cover: ABS-FR plastic.
Base: PBTP-FR plastic.
Yoke: Diecast aluminum.
Accessories:
43196000-001 High Temperature Kit (for actuators with
3/4 in. stroke). Increases the maximum temperature to
428°F (220°C).
43196000-102 High Temperature Kit (for actuators with
1-1/2 in. stroke). Increases the maximum temperature to
428°F (220°C).
43191679-111 Single Auxiliary Potentiometer (10K ohm).
43191679-112 Single Auxiliary Potentiometer (220 ohm).
43191680-102 Dual Auxiliary Switch (24 Vac use only).
ML6420/ML6425 Only
43191679-101 Single Auxiliary Potentiometer.
43191679-102 Single Auxiliary Potentiometer.
43191679-103 Dual Auxiliary Potentiometer.
43191679-104 Dual Auxiliary Potentiometer.
43191680-105 Dual Auxiliary Switch (24 Vac use only).
ML7420/ML7425 Only
43191680-205 Dual Auxiliary Switch (24 Vac use only).
Model Spring Return Action Description
ML6425A Drive valve stem down on power
failure
Electric
Linear Valve
Actuator
ML7425A
ML6425B Draw valve stem up on power
failure
ML7425B