Typical specification – Honeywell ML7421 User Manual
Page 2
NON-SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
customer.honeywell.com
® U.S. Registered Trademark
© 2011 Honeywell International Inc.
63-1256—02 M.S. Rev. 07-11
Printed in USA
Fig. 1. Approximate dimensions in in. (mm).
TYPICAL SPECIFICATION
Valve actuators shall mount directly to the bonnet of
the valve, and connect to the valve stem without
requiring adjustments, linkages, brackets or
adapters.
Direct coupled valve actuators shall be 24 Vac power,
available with floating or analog control signal inputs,
and available for either direct (stem down to close) or
reverse acting (stem up to close) stroke direction.
Models with spring return and non-spring return shall
be available. Non-spring return actuators shall have
manual override capability without removal of the
actuator cover or actuator.
Auxilliary switches, auxilliary feedback, and high
temperature kits for steam applications, shall be
optional factory accessories for direct coupled valve
actuators.
Direct coupled valve actuators shall be manufactured
by the same company that manufactures the valves.
Actuators shall be UL and CSA listed, manufactured
under ISO 9001 International Quality Control
Standards.
a
For use with ML6421B or ML7421B Actuators only.
b
Represents maximum pressure difference between the outlet and either of the two inlets.
c
Do not exceed 100 psi with V5011G valves used in steam applications.
d
Rating is for steam at maximum 100 psi. Ratings for water applications are the same as for the V5011N1xxx.
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
Table 1. Close-off Ratings for Electric Linear Valve Actuators and Honeywell Valves (psi).
Type
Valve
1/2 in. 3/4 in.
1 in. 1-1/4 in. 1-1/2 in. 2 in. 2-1/2 in. 3 in.
4 in.
a
5 in.
a
6 in.
a
ML6420, ML7420
Flange V5011A
—
—
—
—
—
—
28
16
—
—
—
V3350/3351/3450/3451
—
—
—
—
—
—
21
14
V5013B,C; V3360/3361/
3460/3461
—
—
—
—
—
—
21
b
14
b
NPT
V5011F,G
50
c
150
c
150
c
134
c
77
49
28
16
V5011H,J
150
150
150
145
—
—
—
—
V5011N1xxx,
V5011N3xxx, V5013N
230
230
163
104
67
37
V5011N2xxx
100
d
100
d
100
d
100
d
V5013F
150
150
150
126
77
49
ML6421, ML7421
Flange V5011A,B,C
—
—
—
—
—
—
77
53
29
18
12
V5011B
—
—
—
—
—
—
—
—
V3350/51/60/61; V3450/
51/60/61
—
—
—
—
—
—
63
b
45
b
25
b
16
b
11
b
NPT
V5011F,G
150
c
150
c
150
c
150
c
150
c
150
c
100
61
—
—
—
V5011N1xxx,
V5011N3xxx, V5013N
230
230
230
230
230
126
—
—
V5011N2xxx
100
d
100
d
100
d
100
d
100
d
100
d
V5013F
150
150
150
150
150
150