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4.3.1 Mounting Base
The mounting hole sizes and quantities are as detailed in Table 4.1, below:
Table 4.1 – Mounting Base Dimensions
Mounting Holes
Actuator Size
Quantity
L120-190
L120-420
L120-800 (Torque Only)
L120-800 (Thrust Only)
L120-2000 (Torque Only)
L120-2000 (Thrust Only)
4.3.2 Stem Acceptance
The maximum stem acceptance is provided in Table 4.2, below:
Table 4.2 – Maximum Stem Acceptance
Drive 2 Tapped
Actuator size
inch
L120-190
3.5
L120-420
5
L120-800
5
L120-2000
6.25
NOTE: For complete mounting dimensions, see sales brochure LMENBR1200.
4.4 Double Torque Switch
The torque switch is designed to protect the actuator in open and close directions.
Figure 4.1 – Double Torque Switch
NOTE: See Caution and Note on following page.
Limitorque
Tap Size
MSS
8
3/4–10 x 1.13
M20 x 2.5 x 32
8
⁄
–9 x 1.75
7
8
8
3/4–10 x 1.63
8
1.25–7 x 2.0
16
1–8 x 2.0
12
1-1/2–6 x 3.0
Drive 1 Bore
mm
inch
89
2.875
127
4.25
127
7
159
8.00
L120-190 through L120-2000 FCD LMENIM1203-01-A4 – 05/15
®
Bolt Circle
ISO
ISO
MSS
11.75
298 mm
N/A
14.0
N/A
N/A
17.0
N/A
N/A
16
N/A
N/A
23.5
N/A
N/A
18.0
N/A
Drive 1 Key
mm
inch
mm
73
3/4 x 1/4
20 x 12
108
1 x 3/4
28 x 16
178
1 x 3/4
32 x 18
203
11/4 x
⁄
40 x 22
7
8
13
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