ITT B216, Инструкция по установке и эксплуатации

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If leakage ... Then ...
Continues Depressurize the system and retighten the bonnet fasteners as noted
above. (maximum 3rd re-torque)
Continues Replace the valve diaphragm.
For more information, see 4.10 Replace the valve diaphragm on page 12 .
4.6 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
4.7 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. Main-
taining operating pressure at or below the pressure rating will ensure optimum life of the operating com-
ponents, 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
4.8 Set the adjustable opening stop
If you have a series 3, 5, 8, 16 actuator, then follow the steps below:
1. Remove the switch package, if present.
2. Using air pressure and a bleed type regulator, open the valve to the desired position.
3. Rotate the adjusting bushing counterclockwise until resistance is felt. The opening stop is now
set.
4. Adjust the valve closed switch.
4.6 Fastener torque table for valve body to topworks
Advantage® 2.1 Actuator Installation and Operation Manual 11