ACTUATORS - RP SERIES
Australian Pipeline Valve - Installation, Operation and Maintenance Manual
13
5 . 0 C O M M I S S I O N I N G
If the unit has been left in the same position for long periods, the packings and seals may have set. This
means that when the actuator is again operated, possible leakage may come from the piston seals or rod
packings. Cycling the unit several times will activate the packings and seals to work efficiently.
Many factors will effect the rate of operation:
a) how far away it is from the source of pressure
b) the diameter and pressure of the supply line
c) the size of the airline supply valve orifice
d) the torque requirements of the valve
e) the actuator size
f) impurities in the valve stem seat
g) temperature and viscosity of media
As any one of these factors effects the other, a typical operating time is difficult to forecast. However,
operating time can be decreased as follows:
a) larger diameter and higher pressure of the supply line
b) larger airline control valve orifice size
c) high speed exhaust valves
Flow control valves may be used to indicate the flow of exhaust however this will reduce running time.
We do not recommend measuring the incoming source or exhaust flow to great lengths as this may cause
inconsistent operation.
6 . 0 MAINTENANCE INSTRUCTIONS
The following provides the end user with all the required information
necessary for maintenance. Under normal operating conditions the
actuator requires only periodic observation to ensure proper adjustment.
Rebuilding of the actuators is only permitted by personnel of Australian
Pipeline Valve, or to personnel which are properly instructed. By
contravention the guarantee expires.
Spare kits for maintenance are available to replace
all seals and bearings (soft components listed in
Table 2) that may be necessary between 300,000
and 1,000,000 cycles depending on operating and/
or environment conditions and actuator size.
Spare Parts Components Table 2
Model EX1 mm EX2 mm ø dmm
Model EX1 mm EX2 mm ø dmm
50
10
8
14
145
22
17
45
63
10
10
16
160
22
19
48
75
13
10
22
180
24
19
52
88
13
10
25
200
30
22
58
100
17
13
26
240
30
24
68
115
19
13
36
265
36
22
80
125
19
17
38
330
46
24
90
