Emerson Fisher 667NS Instruction Manual page 2

667NS Actuator
June 2018
Table 1. Fisher 667NS Specifications
SPECIFICATION
Nominal Effective Diaphragm Area
Yoke Boss Diameters
Acceptable Valve Stem Diameters
Maximum Allowable Output Thrust
Maximum Travel
Maximum Diaphragm Pressure to Stroke
(2,3)
Actuator
Maximum Excess Diaphragm Pressure
Maximum Casing Pressure for Actuator Sizing
Maximum Diaphragm Casing Pressure
Material Temperature Capabilities
1. See also the Specifications portion of the Introduction section. Do not exceed maximum allowable valve stem load when applying maximum allowable thrust.
2. Maximum diaphragm casing pressure must not be exceeded and must not produce a force on the actuator stem greater than the maximum allowable actuator output thrust or the maxi­
mum allowable stem load.
3. The pressure and temperature limitations in this manual, and any applicable code limitation, should not be exceeded.
Table 2. Diaphragm Casing Volumes, cm
CLEARANCE
ACTUATOR
3
VOLUME, cm
SIZE
3
(INCH )
40 934 (57)
45 1556 (95)
70 3490 (213)
80 4818 (294)
Table 3. Actuator Stem Assembly Bolt Torque Values
ACTUATOR SIZE
40
45
70
80
Table 4. Bonnet‐to‐Actuator Bolt Torque Values
ACTUATOR SIZE
40
45
70
80
2
2
cm
2
Inch
mm
Inch
mm
Inch
N
(1)
Lb
mm
Inch
Bar
Psig
Bar
(2,3)
Psig
Bar
(3)
Psig
Bar
(2,3)
Psig
(3)
3 3
(Inch )
11 (0.4375) 16 (0.625)
1475 (90) 1704 (104)
‐ ‐ ‐ 2786 (170)
5244 (320) 5948 (363)
‐ ‐ ‐ ‐ ‐ ‐
ACTUATOR SIZE
40 45
445 677
69 105
71 71
2‐13/16 2‐13/16
12.7 12.7
1/2 1/2
12,015 30,371
2700 6825
38 51
1.5 2
4.5 4.5
65 65
1.4 0.7
20 10
4.8 4.5
70 65
6.2 5.2
90 75
-40 to 82_C (-40 to 180_F) with nitrile diaphragm
TRAVEL, mm (INCH)
19 (0.75) 29 (1.125)
1852 (113) 2327 (142)
2999 (183) 3720 (227)
6424 (392) 7833 (478)
‐ ‐ ‐ 10,488 (640)
TORQUE
NSm
68
183
183
542
BONNET‐ACTUATOR STUD BOLT TORQUE
NSm
102
102
176
292
Instruction Manual
70
1419
220
90
3‐9/16
19.1
3/4
42,720
9600
76
3
3.5
50
0.7
10
3.4
50
4.1
60
38 (1.5) 51 (2)
2786 (170) ‐ ‐ ‐
4424 (270) 5408 (330)
9242 (564) 11,110 (678)
12,454 (760) 14,863 (907)
LbfSFt
50
135
135
400
LbfSFt
75
75
130
215
D102603X012
80
see table 5
see table 5
5H
5H
25.4 & 31.8
1 & 1‐1/4
88,110
19,800
76
3
4.8
70
1.4
20
4.9
70
5.5
80
76 (3)
‐ ‐ ‐
‐ ‐ ‐
14,879 (908)
19,337 (1180)