3 smb-0 through smb-5 double torque switch – Flowserve SMB Series Electric Actuators User Manual
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SMB Series/SB Series Installation and Maintenance FCD LMENIM1401-04-AQ – 01/15
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4.5.3 SMB-0 through SMB-5 Double Torque Switch
NOTE: Torque settings must be made with the switch mounted in the actuator.
NOTE: See Section 4.3.3 for wiring connection requirements.
Piece numbers correspond to Figure 4.6 and Table 4.8.
To set the torque switch:
1. Verify all electric power is OFF.
2. For the open or close direction torque switch, loosen Machine Screw (piece #35) and set Pointer
(piece #7) at the desired torque setting. The higher the number, the higher the torque output of
the actuator.
3. Tighten Machine Screw (piece #35).
4. For torque seated valves, operate the valve electrically to seat the valve. Ensure tight shut-off by
tripping the torque switch contacts.
Figure 4.6 – SMB-0 through SMB-5 Double Torque Switch
3
4
3
2
1
2
5
1
3
41
27
18
9
6
36
27
27
39
29 16
42
47
3
20
21
22
10
15
28
45
37
33
17
4
2
1
31
43
44
7
39
35
5
25
12
13
30
34
25
25
23
8
11
01-473-0057-3
01-473-0057-3