Honeywell ST 3000 User Manual page 188

9.3 Inspecting and Cleaning Barrier Diaphragms,
Torque ratings
Meter Body Process Head
Bolting Size
Type
Draft Range 7/16 x 14 UNC 20,3 N-m +/- 1,0 N-m
Transmitter
7/16 x 20 UNF NA
M12 x 1.75
All Other DP, M12 x 1.75
GP and AP
Transmitters
7/16 x 20 UNF NA
7/16 x 14 UNC 67,8 N-m +/- 3,4 N-m
3/8 x 16 UNC
M8 x 1.25
5/16 x 18 UNC NA
174 ST 3000 Release 300 and SFC Model STS103 User's Manual
Table 54 lists process head bolt torque ratings for given transmitter type.
Table 54 Process Head Bolt Torque Ratings
Bolting Type
Carbon Steel – B7M Bolting
Standard; no option
["B7" Option]
specified
20,3 N-m +/- 1,0 N-m
[15.0 Lb-Ft +/- 0.8 Lb-Ft] [15.0 Lb-Ft +/- 0.8 Lb-Ft]
NA
25,8 N-m +/- 1,3 N-m NA
[19.0 Lb-Ft +/- 1.0 Lb-Ft]
63,7 N-m +/- 3,2 N-m NA
[47.0 Lb-Ft +/- 2.4 Lb-Ft]
NA
48,8 N-m +/- 2,4 N-m
[50.0 Lb-Ft +/- 2.5 Lb-Ft] [36.0 Lb-Ft +/- 1.8 Lb-Ft]
39,3 N-m +/- 2,0 N-m NA
[29 Lb-Ft +/- 1.5 Lb-Ft]
27,1 N-m +/- 1,4 N-m NA
[20.0 Lb-Ft +/- 1.0 Lb-Ft]
NA
Continued
Stainless Steel NACE 316 Stainless Steel
["CR" Option] Non-NACE ["SS"
Option]
20,3 N-m +/- 1,0 N-m 20,3 N-m +/- 1,0 N-m
[15.0 Lb-Ft +/- 0.8 Lb-Ft] [15.0 Lb-Ft +/- 0.8 Lb-Ft]
25,8 N-m +/- 1,3 N-m NA
[19.0 Lb-Ft +/- 1.0 Lb-Ft]
NA NA
NA NA
63,7 N-m +/- 3,2 N-m NA
[47.0 Lb-Ft +/- 2.4 Lb-Ft]
56,9 N-m +/- 2,8 N-m 56,9 N-m +/- 2,8 N-m
[42.0 Lb-Ft +/- 2.1 Lb-Ft] [42.0 Lb-Ft +/- 2.1 Lb-Ft]
39,3 N-m +/- 2,0 N-m 39,3 N-m +/- 2,0 N-m
[29 Lb-Ft +/- 1.5 Lb-Ft] [29 Lb-Ft +/- 1.5 Lb-Ft]
NA NA
20,3 N-m +/- 1,0 N-m 20,3 N-m +/- 1,0 N-m
[15.0 Lb-Ft +/- 0.8 Lb-Ft] [15.0 Lb-Ft +/- 0.8 Lb-Ft]
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