Page 1
Product Bulletin
685SE and 685SR Actuators
D103791X012
61.2:685SE/685SR
September 2014
Fisherr 685SE and 685SR Piston Actuators
The685SEand685SRaremediumtolarge
spring-return, double-acting piston actuators that
provide accurate, high thrust output for short to long
travel applications. These actuators are designed for
use with a variety of medium to large Fisher
slidingstem control valves including the easye™, FB,
TBX,CVX, HP, EH, and 461.
These actuators feature an internal bias spring that
forces the actuator piston rod to extend (685SE) or
retract (685SR) upon a loss of supply pressure, thereby
ensuring a fail-closed or fail-open mode of operation.
This effectively eliminates the need for a trip valve and
volume tank in most constructions.
Several configurations are available to cover a wide
range of application requirements. Typical travels
range from 25 to 610 mm (1 to 24 inches) and cylinder
diameters range from 254 to 711 mm (10 to 28
inches).
The 685SE and 685SR can be used with the FIELDVUE™
DVC6200 digital valve controller for throttling
applications, or with switching valves for onoff
control. This actuator can also be fitted with volume
boosters for fast stroking requirements.
Features
High Thrust Capability — Maximum thrusts of up to
354 kN (79,000 lbf) can be produced, when supply
pressure is available.
Broad Application Coverage — Standard
constructions offer travels of up to 610 mm (24
inches) and cylinder diameters of up to 711 mm
(28 inches). Even larger constructions are available
upon request.
Low Friction — Low friction piston seals and either
chrome plated or fluoropolymer coated cylinder
bores reduce sliding friction and wear.
X0993
Double Acting Construction — Pressure on both
sides of the piston results in stiff, precise
positioning.
Wide Temperature Range — Standard constructions
offer a temperature range of -40 to 93_C(-40to
200_F), however higher or lower temperatures are
possible. Special constructions can operate as low
as -54_C(65_F)andashighas204_C(400_F).
Mechanical Fail Mode — Depending on construction,
an internal bias spring will force the piston rod to
retract or extend upon a loss of supply pressure.
Manual Override — An optional side-mounted
handwheel or hydraulic hand-pump is capable of
extending or retracting the actuator manually and
can be engaged at any position from full open to full
closed.
www.Fisher.com
Page 2
Product Bulletin
61.2:685SE/685SR
September 2014
Table 1. Specifications
685SE and 685SR Actuators
D103791X012
Operating Pressure
(1)
Minimum: 2.7 bar (40psig)
Maximum Allowable: 10.3 bar (150 psig)
Consult your Emerson Process Management sales
office for supply pressures under 40 psig
(2)
Travel
25 m m (1 inch) through 610 mm (24 inch)
See table 2
Thrust Capabilities
Designed to meet the application requirements
Piston Diameter and Area
(2)
Available in 51 mm (2 inch) increments between 254
mm (10 inch) and 711 mm (28 inch)
See table 2
For additional sizes, c ontact your Emerson Process
Management sales office.
Operative Temperature Limits
Standard: 40 to 93_C(40 to 200_F)
Low Temperature: 54 to 93_C(65 to 200_F)
High Temperature: 32 to 204_C(25 to 400_F)
(3)
(3)
Construction Materials
PART MATERIAL
Yoke ASTM A36 (steel)
Piston ASTM A36 (steel)
Cylinder 254to559mm(10to22inch)
Upper/Lower Heads ASTM A36 (steel)
Outer Spring Cartridge ASTM A36 (steel)
Tie Bolt ASTM A311 1045, Class B (steel)
Piston Rod S31603 (316L SST)
Stem Connector ASTM A36 (steel)
cylinder: 1026 DOM (steel) with
chrome-plated bore
610to711mm(24to28inch)
cylinder: ASTM A516 Grade 70
(steel) with fluoropolymer
Manual Override (optional)
Size 10 to 26: Handwheel
Size 28: Hydraulic Hand-pump
(4)
Weights
See tables 9 and 10
Lifting Point Load Ratings
See table 11
coated bore
Yoke Boss and Valve Stem Diameter
J 90.5 mm (3-9/16 inch) yoke boss with 19.1 mm
(3/4 inch) stem
25.4 mm (1 inch) stem
with 31.8 mm (1-1/4 inch) stem
yoke boss with 32 mm (1-1/4 inch) stem
J 127 mm (5 inch) yoke boss with
J 127 mm (5 inch) yoke boss
J 127 mm (5H inch)
J 178 mm
(7 inch) yoke boss with 51 mm (2 inch) stem
Pressure Connections
See table 3
Instrument Mounting
Mounting kits are available for use with the FIELDVUE
DVC6200 series digital valve controller
1. The pressure/temperature limits in this bulletin and any other applicable standard or code should not be exceeded.
2. Consult your Emerson Process Management sales office for larger travels or cylinder diameters. The Fisher 657, 667, and 585C family of actuators can be used for smaller travels or cylinder diamet
ers.
3. Consult your Emerson Pro cess Management sales office for applications requiring low or high temperature requirements.
4. Consult your Emerson Process Management sales office for applications requiring a manual override on a size 28 actuator.
Options
J Manual Override, J Volume Boosters,
J Fisher Optimized Digital Valve (ODV) Package
Dimensions
Seefigures2and3andtables4and5
Certifications
J Pressure Equipment Directive (PED) 97/23/EC,
J ATEX Group II Category 2 Gas and Dust
,
J Systematic Safety Integrity, SIL 3, J GOST-R
(Russia),
J GOST-K (Kazakhstan)
2
Page 3
685SE and 685SR Actuators
D103791X012
Figure 1. Fisher 685SE Piston Actuator
Product Bulletin
61.2:685SE/685SR
September 2014
SPRING CARTRIDGE
PRESSURE CONNECTIONS
(TOP AND BOTTOM)
TIE RODS
CYLINDER
PISTON
MOUNTING BOSSES
X0992
Principle of Operation
685SE and 685SR piston actuators utilize a piston that
moves inside of a cylinder to generate thrust. A seal
contained on the circumference of the piston provides
a seal between the piston and the cylinder, preventing
supply pressure leakage. A bias spring that is either
below or above the piston, depending on construction,
will retract or extend the piston rod upon a loss of
supply pressure. This fail action will result in forcing an
attached control valve to either fail-open or fail-closed.
From an equilibrium state, the actuator operates by
reacting to a force unbalance that is created by
increasing supply pressure on one side of the piston,
anddecreasingitontheother.Thismovesthepiston
up or down, and results in a repositioning of the
attached control valve. Travel can be adjusted using
SPRING
PISTON WEAR RING
PISTON QUAD SEAL
BEARING ASSEMBLY
BEARING RETAINING RING
PISTON ROD
VALVE STEM CONNECTOR
YOKE
travel limits within a valve positioner, which limit the
travel range of the actuator. The optional handwheel
manual override does not have the ability to act as a
hard travel stop.
An optional handwheel or hydraulic hand-pump
manual override is capable of extending or retracting
the actuator manually and can be engaged at any
position from full open to full close. This handwheel
override utilizes a worm gear assembly that is attached
to the stem connector and not attached to the cylinder
or piston rod. This enables the handwheel override
function to reposition the control valve even if the
actuator cylinder or piston is removed for
maintenance. The hydraulic hand-pump override
utilizes a hydraulic cylinder that is connected to the
piston rod, which is controlled by a manual
hand-pump.
3
Page 4
Product Bulletin
61.2:685SE/685SR
September 2014
685SE and 685SR Actuators
D103791X012
Instrument Selection
An excellent selection of sensitive and accurate
instruments is available for 685SE and 685SR
spring-return piston actuators. These include the
FIELDVUE DVC6200 digital valve controller, as well as
volume boosters.
DVC6200 Digital Valve Controller
FIELDVUE DVC6200 digital valve controllers are
communicating, microprocessorbased
Table 2. Standard Constructions
ACTUATOR
SIZE
10 254 10 16 2.41 507 79
12 305 12 16 2.41 730 113
14 356 14 32 4.91 993 154
16 406 16 32 4.91 1297 201
18 457 18 32 4.91 1642 254
20 508 20 46 7.07 2027 314
22 559 22 46 7.07 2452 380
24 610 24 62 9.62 2919 452
26 660 26 62 9.62 3425 531
28 711 28 62 9.62 3973 616
1. Consult your Emerson Process Management sales office for additional sizes.
PISTON
DIAMETER
mm Inch mm Inch cm2Inch
(1)
PISTON ROD PISTON AREA
currenttopneumatic instruments. In addition to the
traditional function of converting a current signal to a
pressure signal, DVC6200 digital valve controllers,
using HARTr or FOUNDATION™ fieldbus
communications protocol, give easy access to
information critical to process operation.
For additional information, refer to Fisher bulletin
62.1:DVC6200 (D103415X012) or 62.1:DVC6200f
(D103399X012), available at www.FIELDVUE.com or
from your Emerson Process Management sales office.
VALVE STEM
CONNECTOR SIZE
2
mm Inch mm Inch mm Inch mm Inch
19 3/4 90 3-9/16 25 1 203 8
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
19 3/4 90 3-9/16 25 1 154 6
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
25 1 127 5 25 1 203 8
32 or 51 1-1/4 or 2 127 or 178 5H or 7 25 1 610 24
YOKE BOSS
DIAMETER
VALVE TRAVEL
Minimum Maximum
4
Page 5
685SE and 685SR Actuators
D103791X012
Table 3. Supply Connections
ACTUATOR SIZE
10 3/8
12 3/4
14 to 28 3/4 (standard), 1, or 1-1/4
Table4.DimensionsA,G,H,andL
ACTUATOR A
Type Size mm Inch
10 318 12.50 338 13.31 235 9.25 394 15.50
12 381 15.00 338 13.31 235 9.25 457 18.00
14 432 17.00 435 17.13 253 9.98 508 20.00
16 489 19.25 435 17.13 253 9.98 559 22.00
685SE
685SR
1. Consult your Emerson Process Management sales office.
18 543 21.38 435 17.13 253 9.98 610 24.00
20 591 23.25 581 22.88 434 17.10 660 26.00
22 654 25.75 581 22.88 434 17.10 711 28.00
24 711 28.00 584 23.00 484 19.06 762 30.00
26 775 30.50 584 23.00 484 19.06 845 33.25
28 826 32.50
10 318 12.50 338 13.31 235 9.25
12 381 15.00 338 13.31 235 9.25
14 432 17.00 435 17.13 253 9.98
16 489 19.25 435 17.13 253 9.98
18 543 21.38 435 17.13 253 9.98
20 591 23.25 581 22.88 434 17.10
22 654 25.75 581 22.88 434 17.10
24 711 28.00 584 23.00 484 19.06
26 775 30.50 584 23.00 484 19.06
28 826 32.50
Product Bulletin
61.2:685SE/685SR
September 2014
SUPPLY CONNECTION
Size, NPT Quantity (Top/Bottom)
1/1
2/2 (standard)
1/1
2/2 (standard)
1/1
2/2 (standard for 3/4 NPT only)
G H L
mm Inch mm Inch mm Inch
(1) (1) (1) (1)
(1) (1) (1) (1)
895 35.25
Not Applicable
Table 5. Dimensions E and F
WITHOUT MANUAL OVERRIDE WITH MANUAL OVERRIDE
ACTUATOR
SIZE
10 222 8.75 267 10.50 203 8.00 229 9.00 251 9.88 279 11.00 229 9.00 229 9.00
12 222 8.75 267 10.50 203 8.00 229 9.00 251 9.88 279 11.00 229 9.00 229 9.00
14 229 9.00 267 10.50 203 8.00 229 9.00 238 9.38 279 11.00 305 12.00 305 12.00
16 229 9.00 267 10.50 203 8.00 229 9.00 238 9.38 279 11.00 305 12.00 305 12.00
18 229 9.00 267 10.50 203 8.00 229 9.00 238 9.38 279 11.00 305 12.00 305 12.00
20 305 12.00 305 12.00 305 12.00 305 12.00 305 12.00 305 12.00 330 13.00 330 13.00
22 305 12.00 305 12.00 305 12.00 305 12.00 305 12.00 305 12.00 330 13.00 330 13.00
24 406 16.00 406 16.00 457 18.00 457 18.00 476 18.75 476 18.75 457 18.00 457 18.00
26 406 16.00 406 16.00 457 18.00 457 18.00 476 18.75 476 18.75 457 18.00 457 18.00
28 457 18.00 457 18.00 457 18.00 457 18.00 476 18.75 476 18.75 457 18.00 457 18.00
5H or 3-9/16
Inch Yoke Boss
mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch
E F E F
7InchYoke
Boss
5H or 3-9/16
Inch Yoke Boss
7InchYoke
Boss
5H or 3-9/16
Inch Yoke Boss
7InchYoke
Boss
5H or 3-9/16
Inch Yoke Boss
7InchYoke
Boss
5
Page 6
Product Bulletin
61.2:685SE/685SR
September 2014
Table 6. Dimensions B and C
ACTUATOR
SIZE
10, 12
14
16
MAXIMUM
VALVE TRAVEL
mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch
25 1 457 18.00 808 31.82 878 34.57 910 35.82 992 39.06 992 39.06 1024 40.31
51 2 559 22.00 935 36.82 980 38.57 1011 39.82 1094 43.06 1094 43.06 1125 44.31
76 3 584 23.00 986 38.82 1005 39.57 1037 40.82 1167 45.93 1167 45.93 1179 46.43
102 4 705 27.75 1118 44.00 1126 44.32 1157 45.57 1287 50.68 1287 50.68 1300 51.18
127 5 737 29.00 1243 48.94 1243 48.94 1268 49.94 1357 53.43 1421 55.93 1383 54.43
140 5.5 800 31.50 1307 51.44 1307 51.44 1332 52.44 1421 55.93 1484 58.43 1446 56.93
152 6 813 32.00 1319 51.94 1319 51.94 1345 52.94 1497 58.93 1497 58.93 1459 57.43
178 7 838 33.00 1345 52.94 1345 52.94 1421 55.94 1522 59.93 1522 59.93 1535 60.43
203 8 1092 43.00 1599 62.94 1599 62.94 1675 65.94 1776 69.93 1776 69.93 1789 70.43
229 9 1118 44.00 1764 69.44 1764 69.44 1878 73.93 1878 73.93
254 10 1143 45.00 1789 70.44 1789 70.44 1903 74.93 1903 74.93
267 10.5 1156 45.50 1802 70.94 1802 70.94 1916 75.43 1916 75.43
279 11 1168 46.00 1815 71.44 1815 71.44 1929 75.93 1967 77.43
305 12 1346 53.00 1992 78.44 1992 78.44 2132 83.93 2145 84.43
610 24
25 1 521 20.50 968 38.13 1000 39.38 1129 44.44 1160 45.69
51 2 597 23.50 1045 41.13 1076 42.38 1205 47.44 1237 48.69
76 3 622 24.50 1070 42.13 1102 43.38 1278 50.31 1291 50.81
102 4 673 26.50 1121 44.13 1153 45.38 1329 52.31 1341 52.81
127 5 749 29.50 1283 50.50 1308 51.50 1507 59.31 1468 57.81
140 5.5 787 31.00 1321 52.00 1346 53.00 1545 60.81 1507 59.31
152 6 800 31.50 1334 52.50 1359 53.50 1557 61.31 1519 59.81
178 7 883 34.75 1416 55.75 1492 58.75 1640 64.56 1653 65.06
203 8 978 38.50 1511 59.50 1588 62.50 1735 68.31 1748 68.81
229 9 1003 39.50 1676 66.00 1676 66.00 1837 72.31 1837 72.31
254 10 1035 40.75 1708 67.25 1708 67.25 1869 73.56 1869 73.56
267 10.5 1124 44.25 1797 70.75 1797 70.75 1957 77.06 1957 77.06
279 11 1137 44.75 1810 71.25 1810 71.25 1970 77.56 2008 79.06
305 12 1162 45.75 1835 72.25 1835 72.25 2021 79.56 2034 80.06
610 24
25 1 521 20.50 968 38.13 1000 39.38 1129 44.44 1160 45.69
51 2 597 23.50 1045 41.13 1076 41.63 1205 47.44 1237 48.69
76 3 673 26.50 1121 44.13 1153 44.63 1329 52.31 1341 52.91
102 4 699 27.50 1146 45.13 1178 47.38 1354 53.31 1367 53.81
127 5 730 28.75 1264 49.75 1289 51.75 1488 58.56 1449 57.06
140 5.5 819 32.25 1353 53.25 1378 54.25 1576 62.06 1538 60.56
152 6 832 32.75 1365 53.75 1391 54.75 1589 62.56 1551 61.06
178 7 933 36.75 1467 57.75 1543 59.75 1691 65.56 1703 67.06
203 8 1035 40.75 1568 61.75 1645 62.75 1792 68.56 1805 71.06
229 9 1060 41.75 1734 68.25 1734 69.25 1894 75.56 1894 74.56
254 10 1086 42.75 1759 69.25 1759 70.25 1919 76.56 1919 75.56
267 10.5 1200 47.25 1873 73.75 1873 70.75 2034 77.06 2034 80.06
279 11 1213 47.75 1886 74.25 1886 71.25 2046 77.56 2084 82.06
305 12 1238 48.75 1911 75.25 1911 75.25 2097 82.56 2110 83.06
610 24
MAXIMUM
(1) (1) (1) (1) (1) (1) (1) (1) (1) (1)
(1) (1) (1) (1) (1) (1) (1) (1) (1) (1)
(1) (1) (1) (1) (1) (1) (1) (1) (1) (1)
685SE and 685SR Actuators
D103791X012
C (WITHOUT MANUAL OVERRIDE) C ( WITH MANUAL OVERRIDE )
B
3-9/16 Inch Yoke
Boss
5/5H Inch Yoke
Boss
7 Inch Yoke Boss
3-9/16 Inch Yoke
Boss
5/5H Inch Yoke
Boss
7 Inch Yoke Boss
6
Page 7
685SE and 685SR Actuators
D103791X012
Table 6. Dimensions B and C (continued)
ACTUATOR
SIZE
18
20
22
MAXIMUM VALVE
TRAVEL
mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch
25 1 521 20.50 968 38.13 1000 39.38 1129 44.44 1160 45.69
51 2 578 22.75 1026 40.38 1057 41.63 1186 46.69 1218 47. 94
76 3 654 25.75 1102 43.38 1133 44.63 1310 51.56 1322 52. 06
102 4 724 28.50 1172 46.13 1203 47.38 1380 54.31 1392 54.81
127 5 756 29.75 1289 50.75 1314 51.75 1513 59.56 1475 58.06
140 5.5 819 32.25 1353 53.25 1378 54.25 1576 62.06 1538 60.56
152 6 832 32.75 1365 53.75 1391 54.75 1589 62.56 1551 61.06
178 7 908 35.75 1441 56.75 1518 59.75 1665 65.56 1678 66.06
203 8 984 38.75 1518 59.75 1594 62.75 1742 68.56 1754 69.06
229 9 1086 42.75 1759 69.25 1759 69.25 1919 75.56 1919 75.56
254 10 1111 43.75 1784 70.25 1784 70.25 1945 76.56 1945 76. 56
267 10.5 1124 44.25 1797 70.75 1797 70.75 1957 77.06 1957 77. 06
279 11 1137 44.75 1810 71.25 1810 71.25 1970 77.56 2008 79. 06
305 12 1238 48.75 1911 75.25 1911 75.25 2097 82.56 2110 83. 06
610 24
25 1 565 22.25 1052 41.44 1084 42.69 1188 46.76 1219 48. 01
51 2 641 25.25 1129 44.44 1160 45.69 1264 49.76 1296 51. 01
76 3 699 27.50 1186 46.69 1218 47.94 1369 53.88 1381 54. 38
102 4 724 28.50 1211 47.69 1243 48.94 1394 54.88 1407 55.38
127 5 819 32.25 1392 54.81 1418 55.81 1591 62.63 1553 61.13
140 5.5 914 36.00 1487 58.56 1513 59.56 1686 66.38 1648 64.88
152 6 927 36.50 1500 59.06 1526 60.06 1699 66.88 1661 65.38
178 7 1003 39.50 1576 62.06 1653 65.06 1775 69.88 1788 70.38
203 8 1099 43.25 1672 65.81 1748 68.81 1870 73.63 1883 74.13
229 9 1181 46.50 1894 74.56 1894 74.56 2029 79.88 2029 79.88
254 10 1207 47.50 1919 75.56 1919 75.56 2054 80.88 2054 80. 88
267 10.5 1238 48.75 1951 76.81 1951 76.81 2086 82.13 2086 82. 13
279 11 1251 49.25 1964 77.31 1964 77.31 2099 82.63 2137 84. 13
305 12 1327 52.25 2040 80.31 2040 80.31 2200 86.63 2213 87. 13
610 24
25 1 572 22.50 1059 41.69 1091 42.94 1194 47.01 1226 48. 26
51 2 673 26.50 1160 45.69 1192 46.94 1296 51.01 1327 52. 26
76 3 749 29.50 1237 48.69 1268 49.94 1419 55.88 1432 56. 38
102 4 826 32.50 1313 51.69 1345 52.94 1496 58.88 1508 59.38
127 5 851 33.50 1424 56.06 1449 57.06 1623 63.88 1584 62.38
140 5.5 864 34.00 1437 56.56 1462 57.56 1635 64.38 1597 62.88
152 6 876 34.50 1449 57.06 1475 58.06 1648 64.88 1610 63.38
178 7 1029 40.50 1602 63.06 1678 66.06 1800 70.88 1813 71.38
203 8 1054 41.50 1627 64.06 1703 67.06 1826 71.88 1838 72.38
229 9 1105 43.50 1818 71.56 1818 71.56 1953 76.88 1953 76.88
254 10 1130 44.50 1843 72.56 1843 72.56 1978 77.88 1978 77. 88
267 10.5 1295 51.00 2008 79.06 2008 79.06 2143 84.38 2143 84. 38
279 11 1308 51.50 2021 79.56 2021 79.56 2156 84.88 2194 86. 38
305 12 1334 52.50 2046 80.56 2046 80.56 2207 86.88 2219 87. 38
610 24
MAXIMUM
B
(1) (1) (1) (1) (1) (1) (1) (1) (1) (1)
(1) (1) (1) (1) (1) (1) (1) (1) (1) (1)
(1) (1) (1) (1) (1) (1) (1) (1) (1) (1)
Product Bulletin
61.2:685SE/685SR
September 2014
C (WITHOUT MANUAL OVERRIDE) C (WITH MANUAL OVERRIDE)
5/5H Inch Yoke Boss 7 Inch Yoke Boss 5/5H Inch Yoke Boss 7 Inch Yoke Boss
7
Page 8
Product Bulletin
61.2:685SE/685SR
September 2014
Table 6. Dimensions B and C (continued)
ACTUATOR
SIZE
24
26, 28
1. Consult your Emerson Process Management sales office.
MAXIMUM VALVE
TRAVEL
mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch
25 1 572 22.50 1092 43.01 1124 44.26 1254 49.38 1286 50. 63
51 2 629 24.75 1149 45.26 1181 46.51 1311 51.63 1343 52. 88
76 3 679 26.75 1200 47.26 1232 48.51 1410 55.50 1422 56. 00
102 4 775 30.50 1296 51.01 1327 52.26 1505 59.25 1518 59.75
127 5 800 31.50 1407 55.38 1432 56.38 1632 64.25 1594 62.75
140 5.5 895 35.25 1502 59.13 1527 60.13 1727 68.00 1689 66.50
152 6 908 35.75 1515 59.63 1540 60.63 1740 68.50 1702 67.00
178 7 933 36.75 1540 60.63 1616 63.63 1765 69.50 1778 70.00
203 8 1010 39.75 1616 63.63 1692 66.63 1842 72.50 1854 73.00
229 9 1162 45.75 1908 75.13 1908 75.13 2070 81.50 2070 81.50
254 10 1187 46.75 1934 76.13 1934 76.13 2096 82.50 2096 82. 50
267 10.5 1200 47.25 1946 76.63 1946 76.63 2108 83.00 2108 83. 00
279 11 1213 47.75 1959 77.13 1959 77.13 2121 83.50 2159 85. 00
305 12 1365 53.75 2112 83.13 2112 83.13 2299 90.50 2311 91. 00
610 24
25 1 597 23.50 1118 44.01 1149 45.26 1280 50.38 1311 51. 63
51 2 622 24.50 1143 45.01 1175 46.26 1305 51.38 1337 52. 63
76 3 705 27.75 1226 48.26 1257 49.51 1435 56.50 1448 57. 00
102 4 730 28.75 1251 49.26 1283 50.51 1461 57.50 1473 58.00
127 5 806 31.75 1413 55.63 1438 56.63 1638 64.50 1600 63.00
140 5.5 921 36.25 1527 60.13 1553 61.13 1753 69.00 1715 67.50
152 6 933 36.75 1540 60.63 1565 61.63 1765 69.50 1727 68.00
178 7 959 37.75 1565 61.63 1642 64.63 1791 70.50 1803 71.00
203 8 1137 44.75 1743 68.63 1819 71.63 1969 77.50 1981 78.00
229 9 1162 45.75 1908 75.13 1908 75.13 2070 81.50 2070 81.50
254 10 1187 46.75 1934 76.13 1934 76.13 2096 82.50 2096 82. 50
267 10.5 1200 47.25 1946 76.63 1946 76.63 2108 83.00 2108 83. 00
279 11 1213 47.75 1959 77.13 1959 77.13 2121 83.50 2159 85. 00
305 12 1238 48.75 1985 78.13 1985 78.13 2172 85.50 2184 86. 00
610 24
MAXIMUM
B
(1) (1) (1) (1) (1) (1) (1) (1) (1) (1)
(1) (1) (1) (1) (1) (1) (1) (1) (1) (1)
685SE and 685SR Actuators
D103791X012
C (WITHOUT MANUAL OVERRIDE) C (WITH MANUAL OVERRIDE)
5/5H Inch Yoke Boss 7 Inch Yoke Boss 5/5H Inch Yoke Boss 7 Inch Yoke Boss
8
Page 9
685SE and 685SR Actuators
D103791X012
Figure 2. Fisher 685SE Actuator Dimensions
Product Bulletin
61.2:685SE/685SR
September 2014
24031-12
LIFTING
POINT
L
A
FRONT VIEW OF ACTUATOR
WITHOUT MANUAL OVERRIDE
H
L
AR
B
C
LIFTING
POINT
25439-12
A
G
AR
B
C
FRONT VIEW OF ACTUATOR
WITH HANDWHEEL MANUAL OVERRIDE
25439-12
LEFT VIEW OF ACTUATOR WITH
HANDWHEELMANUALOVERRIDE
E
F
24031-12
VIEW OF BOTTOM OF
YOKE BOSS
9
Page 10
Product Bulletin
61.2:685SE/685SR
September 2014
Figure 3. Fisher 685SR Actuator Dimensions
685SE and 685SR Actuators
D103791X012
24436-12
A
FRONT VIEW OF ACTUATOR
WITHOUT MANUAL OVERRIDE
H
AR
B
C
24540-12
A
G
AR
B
C
FRONT VIEW OF ACTUATOR WITH
HANDWHEELMANUALOVERRIDE
24540-12
LEFT VIEW OF ACTUATOR WITH
HANDWHEELMANUALOVERRIDE
24436-12
VIEW OF BOTTOM OF
E
F
YOKE BOSS
10
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Product Bulletin
685SE and 685SR Actuators
D103791X012
Table 7. Actuator Removal Clearance (AR)
MAXIMUM VALVE
TRAVEL
mm in mm in mm in mm in mm in mm in mm in
102 4.0 267 10.50 343 13.50 368 14.50 343 13.50 343 13.50 368 14.50
203 8.0 318 12.50 318 12.50 343 13.50 356 14.00 381 15.00 343 13.50
305 12.0 356 14.00 356 14.00 356 14.00 356 14.00
406 16.0 356 14.00 356 14.00 356 14.00 356 14.00
508 20.0 356 14.00 356 14.00 356 14.00 356 14.00
610 24.0 356 14.00 356 14.00 356 14.00 356 14.00
3-9/16 Inch Yoke
Table 8. Handwheel Specifications
ACTUATOR
SIZE
10 to 12 44482 10000 305 12 3.8 96 290 65
14 to 18 88964 20000 406 16 3.0 80 380 85
20 to 26 133447 30000 610 24 2.8 72 450 100
OUTPUT THRUST HANDWHEEL DIAMETER
N lbs mm Inch N lbs
Table 9. Approximate Weights for Constructions without Manual Override
ACTUATOR
TYPE
685SE
685SR
MAX VALVE
TRAVEL
mm (inches) 10 12 14 16 18 20 22 24 26 28
25 (1.00) 109 (241) 147 (324) 221 (487) 270 (596) 315 (694) 462 (1018) 489 (1079) 680 (1500) 776 (1710) 931 (2053)
51 (2.00) 114 (251) 156 (344) 231 (510) 284 (625) 329 (725) 479 (1056) 510 (1124) 704 (1551) 802 (1768) 957 (2110)
102 (4.00) 122 (270) 174 (383) 252 (556) 310 (683) 358 (789) 514 (1132) 551 (1215) 750 (1654) 855 (1884) 1009 (2225)
152 (6.00) 131 (289) 192 (423) 273 (601) 336 (740) 387 (852) 548 (1209) 592 (1305) 797 (1757) 907 (2000) 1061 (2339)
203 (8.00) 140 (308) 210 (462) 293 (647) 362 (798) 415 (916) 583 (1285) 633 (1396) 843 (1859) 960 (2116) 1113 (2454)
254 (10.00) 148(327) 227 (501) 314 (693) 388 (855) 444 (979) 617 (1361) 674 (1486) 890 (1962) 1 012 (2232) 1165 (2569)
305 (12.00) 157(346) 245 (541) 335 (738) 414 (913) 473 (1042) 652 (1437) 715 (1577) 937 (2065) 1065 (2348) 1217 (2683)
356 (14.00) 165(365) 263 (580) 356 (784) 440 (971) 502 (1106) 686 (1513) 756 (1667) 983 (2168) 1118 (2464) 1269 (2798)
406 (16.00) 174(384) 281 (619) 376 (829) 466 (1028) 530 (1169) 721 (1589) 797 (1758) 1030 (2270) 1170 (2580) 1321 (2912)
457 (18.00) 183(403) 299 (659) 397 (875) 493 (1086) 559 (1233) 756 (1667) 838 (1848) 1076 (2373) 1223 (2696) 1373 (3027)
508 (20.00) 191(422) 317 (698) 418 (921) 519 (1143) 588 (1296) 790 (1742) 879 (1939) 1123 (2476) 1275 (2812) 1425 (3142)
559 (22.00) 200(441) 334 (737) 438 (966) 545 (1201) 617 (1359) 825 (1818) 921 (2029) 1170 (2578) 1328 (2928) 1477 (3256)
610 (24.00) 209(460) 352 (776) 459 (1012) 571 (1259) 645 (1423) 859 (1894) 962 (2120) 1216 (2681) 1381 (3044) 1529 (3371)
25 (1.00) 127 (281) 165 (363) 242 (533) 311 (685) 353 (778) 479 (1056) 557 (1228) 760 (1676) 869 (1915) 1101 (2427)
51 (2.00) 132 (291) 174 (384) 253 (557) 325 (716) 368 (812) 497 (1096) 578 (1273) 784 (1727) 895 (1973) 1127 (2485)
102 (4.00) 142 (312) 193 (426) 275 (605) 352 (776) 398 (878) 534 (1176) 619 (1364) 830 (1830) 948 (2089) 1179 (2599)
152 (6.00) 151 (333) 212 (468) 297 (654) 380 (837) 429 (945) 570 (1257) 660 (1454) 877 (1933) 1000 (2206) 1231 (2714)
203 (8.00) 161 (354) 232 (511) 318 (702) 407 (898) 459 (1012) 606 (1337) 701 (1545) 923 (2035) 1053 (2322) 1283 (2829)
254 (10.00) 170(375) 251 (553) 340 (750) 435 (958) 489 (1079) 643 (1417) 742 (1635) 970 (2138) 1106 (2438) 1335 (2944)
305 (12.00) 180(396) 270 (595) 362 (798) 462 (1019) 520 (1146) 679 (1497) 783 (1726) 1016 (2241) 1159 (2554) 1387 (3059)
356 (14.00) 189(417) 289 (638) 384 (847) 490 (1079) 550 (1212) 716 (1577) 824 (1816) 1063 (2344) 1211 (2670) 1439 (3173)
406 (16.00) 199(438) 308 (680) 406 (895) 517 (1140) 580 (1279) 752 (1657) 865 (1907) 1110 (2446) 1264 (2786) 1491 (3288)
457 (18.00) 208(459) 328 (722) 428 (943) 545 (1201) 611 (1346) 788 (1738) 906 (1997) 1156 (2549) 1317 (2903) 1544 (3403)
508 (20.00) 218(480) 347 (765) 450 (991) 572 (1261) 641 (1413) 825 (1818) 947 (2088) 1203 (2652) 1369 (3019) 1596 (3518)
559 (22.00) 227(501) 366 (807) 472 (1039) 600 (1322) 671 (1480) 861 (1898) 988 (2178) 1249 (2754) 1422 (3135) 1648 (3633)
610 (24.00) 237(522) 385 (849) 493 (1088) 627 (1382) 702 (1547) 897 (1978) 1029 (2269) 1296 (2857) 1475 (3251) 1700 (3747)
AR (WITHOUT MANUAL OVERRIDE) AR (WITH MANUAL OVERRIDE)
Boss
5/5H Inch Yoke
Boss
7 Inch Yoke Boss
APPROXIMATE WEIGHT FOR ACTUATOR SIZE, kg (lbs)
3-9/16 Inch Yoke
Boss
TURNS PER
mm OF
TRAVEL
5/5H Inch Yoke
Boss
TURNS PER
INCH OR
TRAVEL
61.2:685SE/685SR
September 2014
7 Inch Yoke Boss
MAXIMUM RIM FORCE
REQUIRED
11
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Product Bulletin
61.2:685SE/685SR
September 2014
Table 10. Approximate Weights for Constructions with Handwheels
ACTUATOR
TYPE
685SE
685SR
MAX VALVE
TRAVEL
mm (inches) 10 12 14 16 18 20 22 24 26
25 (1.00) 167 (369) 212 (468) 336 (742) 381 (839) 432 (953) 603 (1330) 675 (1489) 853 (1881) 941(2075)
51 (2.00) 173 (383) 221 (488) 347 (765) 394 (869) 447 (985) 621 (1370) 697 (1536) 876(1932) 967(2132)
102 (4.00) 186 (410) 240 (529) 368 (811) 421 (928) 475 (1048) 658 (1450 ) 739 (1630) 922 (2033) 1019 (2246)
152 (6.00) 199 (438) 259 (570) 389 (858) 448 (987) 504 (1111) 694 (1529 ) 782 (1723) 968 (2134) 1070 (2359)
203 (8.00) 211 (465) 277 (611) 410 (904) 474 (1046) 532 (1174) 730 (1609) 824 (1817) 1014 (2235) 1122 (2473)
254 (10.00) 224 (493) 296 (652) 431 (951) 501 (1105) 561 (1237) 766 (1689) 867 (1910) 1060 (2336) 1173 (2586)
305 (12.00) 236 (521) 314 (693) 452 (997) 528 (1164) 590 (1300) 802 (1769) 909 (2004) 1106 (2438) 1225 (2700)
356 (14.00) 249 (548) 333 (734) 473 (1043) 555 (1223) 618 (1363) 838 (1849) 951 (2098) 1152 (2539) 1276 (2814)
406 (16.00) 261 (576) 352 (775) 494 (1090) 581 (1282) 647 (1426) 875 (1928) 994 (2191) 1197 (2640) 1328 (2927)
457 (18.00) 274 (603) 370 (816) 515 (1136) 608 (1341) 675 (1489) 911 (2008) 1036 (2285) 1243 (2741) 1379 (3041)
508 (20.00) 286 (631) 389 (857) 536 (1183) 635 (1400) 704 (1552) 947 (2088) 1079 (2378) 1289 (2842) 1431 (3154)
559 (22.00) 299 (659) 407 (898) 557 (1229) 662 (1459) 732 (1615) 983 (2168) 1121 (2472) 1335 (2944) 1482 (3268)
610 (24.00) 311 (686) 426 (939) 579 (1275) 688 (1518) 761 (1678) 1019 (2248) 1164 (2566) 1381(3045) 1534 (3382)
25 (1.00) 185 (407) 230 (506) 357 (788) 421 (929) 471 (1038) 666 (1468) 743 (1638) 933 (2057) 1034 (2280)
51 (2.00) 191 (422) 239 (528) 368 (812) 435 (960) 486 (1071) 685 (1510) 764 (1685) 956 (2108) 1060 (2337)
102 (4.00) 204 (451) 259 (572) 391 (861) 463 (1022) 516 (1137) 723 (1594) 807 (1779) 1002 (2209) 1112 (2451)
152 (6.00) 218 (480) 279 (616) 413 (910) 491 (1084) 546 (1204) 761 (1677) 849 (1872) 1048 (2310) 1163 (2565)
203 (8.00) 231 (509) 299 (660) 435 (959) 520 (1146) 576 (1270) 799 (1761) 892 (1966) 1094 (2411) 1215 (2679)
254 (10.00) 244 (538) 319 (704) 457 (1008) 548 (1208) 606 (1337) 837 (1845) 934 (2059) 1140 (2512) 1267 (2792)
305 (12.00) 257 (568) 339 (748) 480 (1057) 576 (1270) 636 (1403) 875 (1929) 977 (2153) 1185 (2614) 1318 (2906)
356 (14.00) 271 (597) 359 (792) 502 (1106) 604 (1332) 667 (1469) 913 (2013) 1019 (2247) 1231 (2715) 1370 (3020)
406 (16.00) 284 (626) 379 (836) 524 (1155) 632 (1394) 697 (1536) 951 (2096) 1061 (2340) 1277 (2816) 1421 (3134)
457 (18.00) 297 (655) 399 (880) 546 (1204) 660 (1456) 727 (1602) 989 (2180) 1104 (2434) 1323 (2917) 1473 (3248)
508 (20.00) 310 (684) 419 (924) 568 (1253) 688 (1518) 757 (1669) 1027 (2264) 1146 (2527) 1369(3018) 1525 (3361)
559 (22.00) 324 (714) 439 (968) 591 (1302) 716 (1580) 787 (1735) 1065 (2348) 1189 (2621) 1415(3120) 1576 (3475)
610 (24.00) 337 (743) 459 (1012) 613 (1351) 745 (1642) 817 (1801) 1103 (2432) 1231 (2715) 1461 (3221) 1628 (3589)
APPROXIMATE WEIGHT FOR ACTUATOR SIZE, kg (lbs)
685SE and 685SR Actuators
D103791X012
Table 11. Lifting Point Load Ratings
ACTUATOR SIZE LIFTING ORIENTATION
10
12 to 24 2 1540 3400
26 to 28 2 2860 6300
10
12 to 24 2 3760 8300
26 to 28 2 6350 14000
Actuator Center line
Horizontal
Actuator Center line Vertical
NUMBER OF LIFTING
POINTS USED
2 810 1800
2 2080 4600
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of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
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The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they arenot
to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such
products at any time without notice.
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
MAXIMUM LOAD
kg lbs
E 2013, 2014 Fisher Controls International LLC. All rights reserved.
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