Honeywell ML6420, ML7420 Catalog Page

Direct Coupled Valve Actuators

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MINIMUM
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M17419

1/2 (13) FPT

YOKE
DIAMETER
1-3/8 (35)

ML6420; ML7420
Non-Spring Return Direct Coupled Globe Valve Actuators

Direct Coupled Globe Valve Actuators provide floating or modulating
control of chilled water, hot water, or steam, and mount directly on
VGF series, V5011, and V5013 globe valves from 1/2 to 3 inches.

• Easy and quick installation on valves with
1 3/8” bonnet and 3/4” stroke

• No separate linkage required

• Conduit connector standard

• No adjustments required on linkage

• Accurate valve positioning

• Low power consumption

• High close-off ratings

• Force limiting end switches

• Manual operator

• Synchronous motor

• Maintenance free

• ML7420 has an internal selector plug that
can be used to reverse the direction of action

Dimensions in inches (millimeters)

Electrical Connections: Screw terminals
Ingress Protection Rating: IP54
Frequency: 50 Hz; 60 Hz
Number of Internal Auxiliary Switch: 0
Manual operation: Knob
Mounting: Directly on V5011/V5013 Globe Valves and VGF

Flanged Globe Valves (3/4” or 20mm stroke)

Stroke: 3/4 in. (20 mm)
Supply Voltage: 24 Vac ±15%
Materials: ABS-FR Plastic, aluminum yoke
Operating Humidity Range (% RH): 5 to 95% RH
Medium Temperature: 300 F Maximum (150 C Maximum)
Ambient Temperature Range: 14 F to 122 F (-10 C to +50 C)
Storage Temperature Range: -40 F to +158 F (-40 C to +70 C)
Weight: 2.9 lb (1.3 kg)
Includes: 1/2 in. conduit hub; 1/2 in. flex ble conduit adapter
Approvals
Canadian Standards Association: Certified
CE: Listed
Underwriters Laboratories, Inc: UL94-5V

Accessories:

43191679-111-Potentiometer, 10k ohm, for ML6420 only
43191679-112-Potentiometer, 220 ohm, for ML6420 only
43191680-105-Dual Auxiliary Switch for CREVAL actuators, for ML6420

only

43196000-001-High Temperature Kit for actuators with 3/4 inch (20 mm)

Actuator Type: Val ve
Fail Safe Mode: Stays in place
(Rated) Stem Force: 135 bf (600 N)
Cable Entry: Conduit connector and one knockout on actuator case
Electrical Protection: Class I Insulation (24 Vac)

Product Number Control Signal Feedback

ML6420A3049 SPDT; Floating; Two position — 60 sec 6 VA —

ML6420A3056 SPDT; Floating; Two position — 30 sec 6 VA —

ML7420A3055 2 to 10 Vdc; 0 to 10 Vdc 2-10 Vdc 60 sec 7 VA 1K ohm

ML7420A3063 2 to 10 Vdc; 0 to 10 Vdc 2-10 Vdc 30 sec 7 VA 1K ohm

stroke, stem button attachment

312495-Large stem button provides anti-spin for globe valves up to 3 in.

(1/4-28UNF stem) with ML6420, ML7420, ML6421A, ML7421A,
ML6425, and ML7425 actuators. Not required with ML6984/7984
actuators or Q5022A linkage; not compatible with Q5020 linkage.

Timing (seconds) Power Consumption

Nominal Driving
@ 60 Hz (Driving)

Input Impedance

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