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ML6984, ML7984 SERIES 4000 DIRECT COUPLED VALVE ACTUATORS
SPECIFICATIONS
IMPORTANT
The specifications given in this publication do not
include normal manufacturing tolerances. Therefore,
an individual unit may not exactly match the listed
specifications. Also, this product is tested and cali-
brated under closely controlled conditions and some
minor differences in performance can be expected if
those conditions are changed.
Operating Environment:
Operating Ambient Temperature: 32° to 130° F (0° to 54° C)
measured at the actuator.
Shipping Temperature: -40° to 150° F (-40° to +65° C).
Relative Humidity: 15% to 95% up to 104° F (40° C), non-
condensing atmosphere NEMA-3R/IP54 cover for outdoor
installation.
Acoustic Noise: 55 dBA maximum Sound Pressure Level at
39 in. (991.0 mm) distance.
Electrical Ratings: Power supply/consumption: 24 V (+10%,
-15%), 50/60 Hz or 28 Vdc +/- 10%, 6 VA (Running), 12 VA
(Valve seating).
Specifications/CE Declaration: ML6984 and ML7984
actuators conform to the essential requirements of the Low
Voltage Directive 73/23/EEC based on the standards EN
60730-1:2000 and EN 60730-2-14:1995+A1:2001
Inputs:
ML6984
- 25 mA 24 Vac (5-wire mode only)
- 500 mA (valve seating 3-wire mode)
- Minimum Signal Input Duration: 100 ms
Table 1. Close-off pressure ratings of ML6984/7984 Series 4000 with Honeywell valves, psid
Type
Valve Family
Flare
V5011A
V3350/51/60/61; V3450/51/60/61
NPT
V5011F, G
V5011H, J
V5011N, V5013N
V5011N2xxx, V5011G Steam
V5013F
*Do not exceed 100 psid with valves used in steam applications.
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 Environmental and Combustion Controls 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.
95C-10939EFS—03
ML7984*
- 2 -10 Vdc (1 mA); 4-20 mAdc
*May be used with 0-10 Vdc input but valve will be closed
at 2 Vdc.
Input Impedance for the ML7984:
Voltage Source - 20 KW ohm
Current Source - 237 ohm
Shipping Weight: Approx. 2.2 lb (1 kg).
Accessories/Parts:
272629A - Mounting adapter for V5045 valves.
272630D - Electronic position feedback low voltage auxiliary
switch.
272822 - Resistor kit for multiple actuator Series 90 applica-
tion and for ML7984 to replace the old ML784 (4-20 mA).
40003793-005 - Mounting hardware bag assembly.
Mechanical Ratings:
Stroke - Between 1/2 in. (13 mm) and 1 in. (25 mm), self-
adjusting.
Bonnet - 1 3/8 in. (35 mm) for V5011/13 valves up to 3 in. (76
mm)(DN80).
Stem Coupling - 1/4-28 UNF thread.
Stroke Timing - Nominal 63 seconds for 3/4 in. (19 mm)
Closing Force - 710 N (160 lbf) minimum at 24 Vac.
Performance Specifications:
Life Expectancy - (at rated load and power conditions) 50,000
full stroke cycles plus 1,000,000 repositions of 10% stem
travel or 10 years, whichever occurs first.
Hysteresis - 5%
1/2 in.
3/4 in.
1 in.
150
150
150
—
—
—
150
150
150
150
150
150
230
230
193
100
100
100
150
150
150
2
stroke.
- Proportional to stroke length at 24 Vac.
- Force varies 22 N/V (5 lbf/volt).
1-1/4 in.
1-1/2 in.
2 in.
150
91
58
—
—
—
150
91
58
150
—
—
123
79
44
100
79
44
149
91
58
2-1/2 in.
3 in.
77
53
63
45
33
19
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—
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