User Manual

IOM-9540L
3
CONTROL VALVE POSITIONER PLUG ACTION
CASHCO ACTION/FAIL MOUNTING ACTION CHANGEOVER STEM TRAVEL WITH SIGNAL
PRODUCT POSITION LOCATION PLATE SETTING DIRECTION INCREASING
ATO-FC Right Direct Downwards Opens
2"- 2266 to Open
& 964
(Non- ATC-FO Left Direct Downwards Closes
Reversible to Close
Actuator,
Reversible ATC-FO Right Reverse Downwards Opens
Trim) to Close
ATO-FC Left Reverse Downwards Closes
to Open
987, 988, ATO-FC Left Direct Upwards Opens
988MB, 989, to Open
520, 521,
SCV-S, ATC-FO Right Direct Upwards Closes
SCV-30 to Open
(Non-
Reversible ATC-FO Left Reverse Upwards Opens
Trim, to Open
Reversible
OR Non- ATO-FC Right Reverse Upwards Closes
Reversible to Open
Actuator)
Figure 3A
Figure 4
Figure 5A (Model 987)
Figure 3B
TABLE 1
CROSS-SECTION
SIDE VIEW
CROSS-SECTION
SIDE VIEW
12
10A
10B
or
21
17
BP
13
11
2-1/8"
2-7/8"
N
U
N
U
N
U
N
U
N
U
N
U
N
U
N
U