Emerson 350 series Instruction Manual page 6

Instruction Manual
Form 1387
June 2002
Types
350 without handwheel
350 with handwheel
1. An actuator with this yoke boss size uses a 19.1 mm (3/4-inch) stem. When this size actuator stem is used, the valve stem must be less than the standard length.
Actuator Type
Yoke Boss Size, mm (Inch)
Travel, mm (Inch)
Gross Cylinder
Output Thrust, N (Lb)
Usable Output
Thrust, N (Lb)
1. Thrusts given are the thrusts available for operation of control valves. Under some conditions, such as with the valve plug stalled, higher thrusts can be developed. The control valve
stem must be capable of withstanding this higher thrust.
NOTE:
FOR 71mm (2-13/16 INCH) YOKE BOSS SIZE TYPE 350 AC-
TUATOR WITH 1 TO 5 mA DC INPUT SIGNAL (5% INPUT
13A6501-A AMPLITUDE) AND 8896 N (2000 POUNDS) OUTPUT THRUST
A1617-2/IL
Figure 3. Typical Frequency Response Curves
Table 4. Maximum Actuator Travel for Type 350
Table 5. Usable Thrust Output of Type 350 Actuators at Maximum Travel
YOKE BOSS SIZE
mm Inch
72 2-13/16
90 or 127 3-9/16
72 2-13/16
90 3-9/16
127 5
350
(w/ or w/o handwheel)
72
(2-13/16)
38
(1-1/2)
8896
(2000)
8896
(2000)
350 Actuator
13 mm
(1/2 INCH)
TRAVEL
29 mm
(1-1/8 IN)
TRAVEL
76 mm
(3- INCH)
TRAVEL
13 mm
(1/2 INCH)
TRAVEL
29 mm
(1-1/8 IN)
TRAVEL
76 mm
(3- INCH)
TRAVEL
mm
(INCH)
TRAVEL
mm
38
(1)
or 5 76
38
(1)
64
76
(1)
90 or 127
(3-9/16 or 5)
64 or 76
(2-1/2 or 3)
8896 or 22240
(2000 or 5000)
8996 or 22240
(2000 or 5000)
Inch
1-1/2
3
1-1/2
2-1/2
3
5