Rosemount 8732E - Page 9

Quick Installation Guide
00825-0100-4663, Rev BC
December 2012
Rosemount 8732
9
reaches the maximum torque value of the bolts. Practical consideration for the integrity of
the liner often leads the user to distinct torque values to stop leakage due to the unique
combinations of flanges, bolts, gaskets, and sensor liner material.
Check for leaks at the flanges after tightening the bolts. Failure to use the correct tightening
methods can result in severe damage. Sensors require a second tightening 24 hours after
the initial installation. Over time, sensor liner materials may deform under pressure.
Figure 7. Flange Bolt Torquing Sequence
Table 1. Suggested Flange Bolt Torque Values for Rosemount 8705 and 8707
High-Signal Sensors
PTFE/ETFE/PFA liners
Polyurethane/Neoprene/Linatex/Adiprene
liner
Size
Code
Line Size
Class 150
(pound-feet)
Class 300
(pound-feet)
Class 150
(pound-feet)
Class 300
(pound-feet)
005 0.5 inch (15 mm) 8 8 - -
010 1 inch (25 mm) 8 12 - -
015 1.5 inch (40 mm) 13 25 7 18
020 2 inch (50 mm) 19 17 14 11
025 2.5 inch (65 mm) 22 24 17 16
030 3 inch (80 mm) 34 35 23 23
040 4 inch (100 mm) 26 50 17 32
050 5 inch(125 mm) 36 60 25 35
060 6 inch (150mm) 45 50 30 37
080 8 inch (200 mm) 60 82 42 55
100 10 inch (250 mm) 55 80 40 70
120 12 inch (300 mm) 65 125 55 105
140 14 inch (350 mm) 85 110 70 95
160 16 inch (400 mm) 85 160 65 140
180 18 inch (450 mm) 120 170 95 150
200 20 inch (500 mm) 110 175 90 150
240 24 inch (600 mm) 165 280 140 250
300 30 inch (750 mm) 195 415 165 375
360 36 inch (900 mm) 280 575 245 525
1
5
3
7
8
4
6
2
8-bolt
4663RevBCQIG.fm Page 9 Thursday, January 10, 2013 5:33 PM