4-4
Chapter 4 Maintenance and Troubleshooting of this Device
(2) Attachment
When attaching the main unit cover, fasten the bolts to the appropriate tightening torque below. If
the seal gaskets are damaged, replace them with new ones.
Table 4-1. Cover Bolt and Nut Tightening Torques (N·m)
Model
Number
Process
Wetted
Material
Bolt/
Nut
Material
Bolt and Nut Tightening Torques (N·m)
Main Unit Cover Material
SCS14A
Main Unit Cover
Material PVC
When Using
New Gaskets
When
Reusing
Gaskets
When Reusing
Main Unit Cover
in Gen'l
JTD910S SUS316 SUS304 15±1 10±1 -
JTD920S
JTD930S
SUS316
ASTMB575
SNB7 22±2 17±1 10±1
SUS630 22±2 17±1 -
SUS304 15±1 10±1 10±1
JTD920S
JTD930S
JTD960S
Tantalum
SUS316L
SNB7 22±2 17±1 10±1
SUS630 - - -
SUS304 15±1 10±1 10±1
JTD921S
JTD931S
JTD961S
SUS316
SNB7 90±20 90±20 -
SUS630 90±20 90±20 -
SUS304 55±10 55±10 -
JTG940S
JTG960S
SUS316
ASTMB575
Tantalum
SUS316L
SNB7 22±2 17±1 10±1
SUS630 22±2 17±1 -
SUS304 15±1 10±1 10±1
JTG980S
SUS316
ASTMB575
SNB7 90±20 90±20 -
SUS630 90±20 90±20 -
SUS304 55±10 55±10 -
JTA922S
JTA940S
SUS316
ASTMB575
Tantalum
SUS316L
SNB7 22±2 17±1 -
SUS630 22±2 17±1 -
SUS304 15±1 10±1 -
JTC929S
JTC940S
SUS316
SNB7 22±2 17±1 -
SUS630 22±2 17±1 -
SUS304 15±1 10±1 -
Table 4-2. Adapter Flange Bolt and Nut Tightening Torque
Bolt and Nut
Material
Bolt and Nut Tightening Torques (N·m)
Adapter Flange Material SCS14A Adapter Flange Material PVC
Carbon Steel 20±1 7±0.5
SUS630 20±1 -
SUS304 10±0.5 7±0.5
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