Installation
Advantage 2.1 Actuator Installation and Operation Manual
11
If leakage ...
Then ...
Continues
Replace the valve diaphragm.
For more information, see
Fastener torque table for valve body to topworks
Values given are for lubricated fasteners.
Valve size
Bolt size
PTFE diaphragm
Elastomer diaphragm
DN
Inch
Metric
Imperial
N-m
in-lb
N-m
in-lb
Bio-Tek
(8, 10, 15)
Bio-Tek
(0.25,
0.375, 0.50)
M4
#6
2.3-2.8
20-25
2.3-2.8
20-25
15
0.50
M6
1/4"
2.8-6.8
25-60
2.3-4.5
20-40
20
0.75
M6
1/4"
5.7-9.1
50-65
2.3-5.7
20-50
25
1.00
M8
5/16"
7.4-11.3
65-90
5.1-7.9
45-70
40
1.50
M10
3/8"
23-25
200-225
8.5-14.7
75-130
50
2.00
M12
7/16"
25-31
225-275
11-20
100-180
Actuator operating pressure
Maximum permitted air supply pressure
bar
kPA
psi
6.2
620
90
Actuator pressure rating
The actuator will withstand pressures well in excess of the rated pressure without risk of
bursting. Maintaining operating pressure at or below the pressure rating will ensure optimum
life of the operating components, such as the actuator diaphragm. However, operation at
pressures up to 10.3 bar | 150 psig, for limited periods of time, will not noticeably affect the life
of these components.
bar
kPA
psi
6.2
620
90
Disassemble the valve
1. Remove all line pressure.
2. If the actuator mode of operation is fail open or fail close, then load the actuator with air.
If the actuator mode of operation is ... Then ...
Fail open
Load the actuator with sufficient air to partially close the
valve.
Fail close
Load the actuator with sufficient air to partially open the
valve.
3. Remove the bonnet fasteners.
4. Lift the topworks assembly from the valve body.
5. If the actuator mode of operation is fail open, then remove pressure load from the actuator.
Replace the valve diaphragm
1. Disassemble the valve.
For more information, see
2. Unscrew the diaphragm from the compressor by turning the diaphragm counterclockwise.
Designed and Manufactured by ITT
