Victaulic 5-Year Rebuild Kit, Инструкция по эксплуатации

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CAUTION
• DO NOT over-tighten the cover plate bolts.
Failure to follow this instruction could cause damage to the
cover plate gasket, resulting in valve leakage.
31. Align the cover plate/cover plate gasket to the valve. Make sure the
clapper spring’s arms are rotated to their installed position. Tighten
all cover plate bolts into the cover plate/valve body.
32. Torque all cover plate bolts in an even, crossing pattern. Refer
to the “Required Cover Plate Bolt Torques” table below for the
required torque values. DO NOT over-tighten the cover plate bolts.
Required Cover Plate Bolt Torques
Size Torque
Nominal Size
inches
Actual
Outside Diameter
inches
mm
ft-lbs
N•m
1 1/2
1.900 30
48.3 41
2
2.375 30
60.3 41
2 1/2
2.875 60
73.0 81
76.1 mm
3.000 60
76.1 81
3
3.500 60
88.9 81
4
4.500 100
114.3 136
165.1 mm
6.500 115
165.1 156
6
6.625 115
168.3 156
8
8.625 100
219.1 136
INSTRUCTIONS FOR REPLACING THE
DIAPHRAGM (ITEM 11 ON PAGE 1)
WARNING
• Make sure the valve is depressurized and
drained before attempting to remove any trim
from the valve.
Failure to depressurize and drain the valve before
removing any trim from the valve could cause
serious personal injury and/or property damage.
If the system is in service, follow the “Removing the System from
Service” section.
1.
Break the unions that connect the trim to the diaphragm cover.
Refer to the applicable trim drawing for details.
2. Remove the cap screws from the diaphragm cover, and pull the
diaphragm cover/trim off the valve.
3. Remove the old diaphragm from the valve body. Discard the
diaphragm.
I-NXT.RBKIT_9
5-Year Rebuild Kit Instructions for
FireLock NXT ™ Valves
SERIES 768 AND 769
I-NXT.RBKIT
REBUILD KIT INSTRUCTIONS
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VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2010 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA.
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