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122
ML6421; ML7421
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 valves. These Non-Spring
Return Actuators will operate 1/2 to
6 in. valves.
SPECIFICATIONS
Actuator Type .......................................Valve
Control Signal ....................................... Floating; 0-10 Vdc or
2-10 Vdc modulating
Fail Safe Mode .....................................Stays in place
(Rated) Stem Force ..............................405 lbf (1800 N)
Cable Entry ..........................................Two knockout holes for 1/2 in.
conduit standard on actuator
case
Electrical Protection .............................Class I Insulation (24 Vac)
Ingress Protection Rating .....................IP54
Electrical Connections .........................Screw terminals
Frequency ............................................ 60 Hz
Manual operation .................................Knob
Mounting ..............................................Directly on V5011/V5013
Globe Valves and VGF
Flanged Globe Valves
Stroke ................................................... 3/4 in. (20 mm); or
1 1/2 in (38 mm)
Materials ............................................... ABS Plastic
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 .................................................. 5.1 lb (2.3 kg)
Includes ...............................................1/2 in. conduit hub
APPROVALS
Canadian Standards Association ........Certified
CE ........................................................Recognized
Underwriters Laboratories, Inc. ........... UL94-5V
ACCESSORIES
43191679-101—Auxiliary Potentiometer for ML6421A
43191679-102—Auxiliary Potentiometer for ML6421B
43191680-102—Dual Auxiliary Switch for CREVAL actuators
43196000-001—High Temperature Kit for actuators with 3/4 in. stroke
43196000-038—High Temperature Kit for actuators with 1-1/2 in. stroke
FEATURES
• Easy and quick installation on valves with 1 3/8 in. bonnet
and 3/4 in. stroke, or with 1 7/8 in. bonnet and 1 1/2 in.
stroke.
• High force for VGF Pressure-balanced valves.
• 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.
DIMENSIONS DIAGRAM
2-1/2
(64)
7 (178 ) X 7 (178)
A
A
B
C
D
E
5-5/8 (142)
9-3/8 (239)
10-3/8 (264)
14-1/4 (360)
1-3/8 (35)
8 (204)
11-7/8 (301)
12-3/4 (326)
16-7/8 (430)
1-7/8 (48)
5-9/16 (141)
9-3/16 (233)
9-9/16 (242)
12-11/16 (322)
1-3/8 (35)
A
KNOCKOUTS (2)
7/8 (22)
B
B
C
C
D
MINIMUM
CLEARANCE
ML6421, ML7421 ML6420, ML7420
ML6421A, ML7421A ML6421B, ML7421B ML6420, ML7420
E (YOKE
DIAMETER)
E (YOKE
DIAMETER)
5-5/15 (135)
x 6-5/16 (161)
2-11/16
(67)
M17463
1/2
(13)
FPT
Direct Coupled Valve Actuator
ML6421; ML7421