Data Sheet
685SE and 685SR Actuators
D103791X012
Product Bulletin
61.2:685SE/685SR
September 2014
4
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
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.
Table 2. Standard Constructions
(1)
ACTUATOR
SIZE
PISTON
DIAMETER
PISTON ROD PISTON AREA
VALVE STEM
CONNECTOR SIZE
YOKE BOSS
DIAMETER
VALVE TRAVEL
Minimum Maximum
mm Inch mm Inch cm
2
Inch
2
mm Inch mm Inch mm Inch mm Inch
10 254 10 16 2.41 507 79
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
12 305 12 16 2.41 730 113
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
14 356 14 32 4.91 993 154
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
16 406 16 32 4.91 1297 201
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
18 457 18 32 4.91 1642 254
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
20 508 20 46 7.07 2027 314
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
22 559 22 46 7.07 2452 380
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
24 610 24 62 9.62 2919 452
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
26 660 26 62 9.62 3425 531
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
28 711 28 62 9.62 3973 616
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
1. Consult your Emerson Process Management sales office for additional sizes.