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Specifications subject to change without notice
Edition: August 2017
Maintenance EB 31a-01_EN
Fig. 12 - Clockwise direction to close
•
Valve mounted with an actuator:
(in clockwise direction to open)
Fig. 13 - Clockwise direction to open
6. Maintenance and assembly instructions
With the information stated below, Pfeiffer provides the end
user with all the required information necessary for
maintenance. Under normal operating conditions, the
actuator requires only periodic checks to ensure proper
functioning.
Spare part kits for maintenance are available to replace all
seals and bearings. Maintenance may be necessary between
500,000 and 1,000,000 cycles, depending on the operating
and/or environmental conditions.
6.1
Fourth generation of rack-and-pinion
actuators (version manufactured from 2000)
6.1.1
Screw sizes
Actuator
DAP/SRP
d
in mm
SW 1
in mm
SW 2
in mm
SW 3
in mm
SW 4
in mm
15
14
10
10
8
3
30
16
10
10
10
3
60
22
13
13
10
4
100
25
13
13
10
4
150
26
17
17
13
5
220
36
19
19
13
6
300
38
19
19
17
6
450
45
22
22
17
6
600
48
22
22
19
6
900
52
24
24
19
8
1200
58
30
30
22
10
2000
68
30
30
24
10
3000
80
36
36
22
12
4000
85
46
46
24
17
5000
90
46
46
24
17
10000
102
24
60
Allen 14
-
Table 3 - Dimensions
Fig. 14 - Screw sizes (depending on actuator version)
