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ML6425, ML7425 SPRING RETURN ELECTRIC LINEAR VALVE ACTUATORS
3 63-2516—07
Table 1. Close-off Ratings for ML6425, ML7425 Electric Linear Valve Actuators and Honeywell Valves (psi).
a
Represents maximum pressure difference between the outlet and either of the two inlets.
b
Do not exceed 100 psi with V5011G valves used in steam applications.
Fig. 1. Approximate Dimensions of ML6425, ML7425
Electric Linear Valve Actuator in in. (mm).
INSTALLATION
When Installing this Product...
1. Read instructions carefully. Failure to follow them could
damage the product or cause a hazardous condition.
2. Check ratings and description given in the specifications
to make sure the product is suitable for your application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Electrical Shock or Equipment Damage Hazard.
Can shock individuals or short equipment circuitry.
Disconnect power supply before installation.
Location
Install the actuator in a location that allows enough clearance
for mounting accessories and for servicing.
CAUTION
Equipment Damage Hazard.
Can damage actuator due to condensation or a
valve gland leak.
Install the actuator in a position above horizontal.
Mounting
1. Place the actuator on the valve with the U-bolt around
the valve collar (Refer to Fig. 2).
2. Place the U-bolt against the valve collar and secure the
actuator to the valve by turning each U-bolt nut
clockwise. To assure even pressure on the collar, first
tighten the nuts finger-tight and then alternate turning
each U-bolt nut until both are snug.
3. Push aside the stem button retaining clip and hold
(Refer to Fig. 3).
4. Lift valve stem until the head of the valve stem button is
inside the large slot of the stem button retaining clip on
the actuator.
5. Release the stem button retaining clip to secure the stem
button. Check to make certain the stem button is secured
by the retaining clip.
6. Remove the cover from the actuator using a Phillips or
crosspoint screwdriver (Refer to Fig. 4).
CAUTION
Personal Injury Hazard.
Manual spring handle under tension can turn
quickly when lifted, pinching fingers between
handle and plastic casing.
Use a screwdriver to lift and release manual spring
handle (Refer to Fig. 5).
7. Remove the manual spring handle retaining clip, and lift
and release the handle (Refer to Fig. 5). The easiest way
to perform this operation safely is to:
a. Remove the retaining clip.
b. Wedge a small, flat-bladed screwdriver under the
manual spring handle and pry up the handle
(Refer to Fig. 5).
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.
FlangeV5011A ——————2816
V3350/ 3351/ 3450/ 3451 — —————2114
V5013B, C; V3360/ 3361/ 3460/ 3461 — —————
21
a
14
a
NPT V5011F, G
150
b
150
b
150
b
134
b
77 49 28 16
V5011H, J 150 150 150 145 — — — —
V5011N1xxx, V5011N3xxx, V5013N 230 230 163 104 67 37 — —
V5011N2xxx 100 100 100 100 67 37 — —
V5013F 150 150 150 126 77 49 — —
5-5/15
(135)
6-5/16
(161)
x
2-11/16 (67)
14-5/16 (364)
MINIMUM
CLEARANCE
11-1/4
(284)
7-5/8
(192)
M7892A
1/2 (13) FPT
YOKE
DIAMETER
1-3/8 (35)