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FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16
60
Item #
Part
WW
EU
202
6.1
Diaphragm Casing
203
6.2
Diaphragm Casing
211
6.12
Stem
220
6.14
Disk (2x)
225
6.16
Diaphragm (2x)
227
6.15
Diaphragm Plate (2x)
228
6.13
Spacer Bushing (2x)
229
6.21
Actuator Spring
231
6.22
Distance Plate (2x)
253
6.8
Lower Guide Bushing
254
6.80
Plain Bearing (2x)
255
6.18
Thrust Washer (2x)
258
6.26
Vent Plug (2x)
272
6.17
O-Ring (2x)
273
6.11
Scraper Ring
275
6.10
O-Ring (2x)
276
6.9
O-Ring (3x)
279
6.46
O-Ring (18x)
326
6.23
Spring Adjusting Plate (2x)
334
6.45
Hexagon Bolt (18x)
335
6.3.1
Hexagon Bolt - short (40x)
1)
336
6.3.2
Hexagon Bolt - long (8x)
1)
337
6.5
Plain Washer (48x)
1)
339
6.25
Protection Sleeve (8x)
348
6.20
Special Nut
349
6.19
Lock Washer (2x)
351
6.4
Hexagon Nut (48x)
373
6.82
Intermediate Guide Bushing
374
6.47
Distance Bushing (2x)
380
6.81
Stem Extension
1)
Alternatively, hex head assembled screws with captive flat washers are used for this application.
380
349
374
228
227
220
272
225
255
211
336
335
337
203
258
202
276
279
334
202
373
254
258
276
279
334
351
339
273
275
229
326
231
275
202
253
254
276
279
334
348
374
Table 36: Actuator parts
Figure 33: Actuator parts
43. Lubricate the thread of the stem extension (348) with
an appropriate lubricant and install and finger tighten
the special nut (348).
NOTICE
The diaphragm plate should be posi-
tioned to the diaphragm with the aid
of the positioning template. Mark the position.
44. Fix the stem (211) with the stem clamping tool against
twisting.
45. Turn the special nut (348) clockwise using a suitable
torque wrench, see section 15 torque requirements.
46. Remove the stem clamping tool.
47. Install and align the actuator springs (229).
NOTICE
The surface, respectively the edges
of the spring ends should be aligned
to the actuators center. If these will ignored the spring
may touch the actuators casing and rub in rare cases.
48. Install and position the spring adjusting plate (326)
such that the imprint on the plate and air connection
are opposite of each other.
49. Install the distance plate (231) and diaphragm casing
(203), positioning the casing such that the air connec-
tions opposites.
50. Lubricate the threats of the long hexagon bolts (336)
with an appropriate lubricant and load the springs uni-
formly in a clockwise sequence by tightening the long
hexagon bolts (336), plain washers (337) and hexagon
nuts (351). Alternative method see
NOTICE
step 4.
51. Install the short hexagon bolts (335), plain washers (337)
and hexagon nuts (351).
52. Tighten the nuts (351) using a crosswise pattern in
four steps, see section 15 torque requirements.
53. Install the protection sleeve (339).
54. Perform 3 full strokes and check the tightening of the
casing bolting.
55. Log the maintenance interval and the work performed.
56. The actuator subassembly is ready to be mounted on
the valve and the accessories attached.