14
IMO-227 EN
IMO 8/17
TABLE 5
Bolt size
Torque to Cast/Ductile Body Actuators
No lubrication
ft·lbs
in·lbs
N·m
1/4
8
96
11
5/16
16
192
22
3/8
27
324
37
7/16
45
540
61
1/2
67
804
91
9/16
100
1200
136
5/8
135
1620
183
3/4
225
2700
305
7/8
335
4020
454
1
520
6240
705
1-1/8
700
8400
949
1-1/4
990
11880
1342
M6
7
84
9
M8
14
168
19
M10
28
336
38
M12
48
576
65
M16
115
1380
156
M20
225
2700
305
M30
783
9396
1062
M36
1347
16164
1826
2. Place the actuator onto the valve and bracket assem-
bly aligning the holes in the bracket with the holes in
the actuator, and aligning the actuator drive with the
coupling. Install the four hex head cap screws (8) and
four lockwashers (9) through the bracket and into the
actuator. Apply slightly more than finger-tightness to
these fasteners, but DO NOT TIGHTEN.
3. Cycle the actuator a couple of times, allowing the
assembly to position itself for proper actuator-drive to
valve-drive alignment. Tighten the four hex head cap
screws (8) securing the bracket to the actuator using
the values in Table 5 or 6 as applicable.
WARNING:
BEWARE OF BALL MOVEMENT!
KEEP HANDS, OTHER PARTS OF THE BODY, TOOLS AND OTHER
OBJECTS OUT OF THE OPEN FLOW PORT. LEAVE NO FOREIGN
OBJECTS INSIDE THE VALVE. WHEN THE VALVE IS ACTUATED, THE
BALL FUNCTIONS AS A CUTTING DEVICE.
7 .8
Open/Close Position Adjustment
NOTE: Refer to the appropriate Installation, Maintenance,
and Operating Instructions (IMO) for specific directions on
how to adjust the actuator travel stops or limit switch (see
Table 7).
The actuator travel stops should be adjusted so that there
is proper ball position in the full open and full close valve
position. Use the following procedures to determine correct
ball position.
Valve Open Position: With the valve in the open position
(actuator is against the “OPEN” travel stop), The maximum
allowable misalignment of the ball port in relation to the
body port is 1/16 inch (1.6 mm) on either side of the ball. Do
not use the seat ID to measure misalignment since, in many
cases; it is larger than the ball or body port.
Valve Close Position: With the valve in the closed position
(actuator is against the “CLOSE” travel stop), make a pencil
mark on the ball at the 9:00 o’clock and 3:00 o’clock loca-
tions as shown in (Figure 18). Open the valve part way, and
measure dimension “A”. This measurement should deviate
no more than ± 1/16 inch (± 1.6 mm) from the value given
in (Table 8) for all valve.
Figure 18 Correct Ball Position
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