FB1200 Flow Computer Quick Start Guide
D301786X012
November 2023
7
Use the following bolt installation procedure:
1. Carbon steel bolts do not require lubrication. Stainless steel bolts are factory-
coated with a lubricant to ease installation. Do not apply any additional lubricant
when installing either type of bolt.
2. Finger-tighten the bolts.
3. Torque the bolts to the initial torque value using a crossing pattern. See Table 2
for initial torque value.
4. Torque the bolts to the final torque value using the same crossing pattern. See
Table 2 for final torque value.
5. Verify that the flange bolts protrude through the sensor module before applying
pressure.
Table 2: Torque Values for the Flange and Flange Adapter Bolts
Head markings
Initial torque
Final torque
Steel (CS)
(33.9 N m)
(73.4 N m)
Steel
(SST)
(16.9 N m)
(33.9 N m)
Proper Bolt Installation