Emerson 8700 Series, Reference Manual

Page: 30 / 136

Reference Manual
00809-0100-4793, Rev CA
August 2004
Rosemount 8742C
3-8
NOTE
Do not bolt one side at a time. Tighten each side simultaneously. Example:
1. Snug left
2. Snug right
3. Tighten left
4. Tighten right
Do not snug and tighten left and then snug and tighten right. Failure to do so
will result in liner damage.
Always check for leaks at the flanges after tightening the flange bolts. Failure
to use the correct flange bolt tightening methods can result in severe damage.
All flowtubes require a second torquing twenty-four hours after initial flange
bolt tightening.
Table 3-1. Flange Bolt Torque Specifications for
Rosemount 8705 and 8707 High-Signal Flowtubes
Teflon/Tefzel liner Polyurethane liner
Size Code Line Size
Class 150
(pound-feet)
Class 300
(pound-feet)
Class 150
(pound-feet)
Class 300
(pound-feet)
005
1
/
2
-inch (15 mm) 8 8 — —
010 1 inch (25 mm) 8 12 — —
015 1
1
/
2
inch (40 mm) 13 25 7 18
020 2 inch (50 mm) 19 17 14 11
030 3 inch (80 mm) 34 35 23 23
040 4 inch (100 mm) 26 50 17 32
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
See ”Safety Messages” on pages 3-1 and 3-2 for complete warning information.