16 | Baker Hughes
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BODY
BOLTS
TORQUES in ft-lbf
Size
Rating
Sizes of Studs
No. of Studs &
Nuts
A193 Gr B7
A193 Gr B7M
Min
Max
Min
Max
2
1500
1.250-8 UN-2A
8
610
770
470
590
2500
1.625-8 UN-2A
8
1500
1800
1100
1400
3
1500
1.500-8 UN-2A
8
1200
1400
850
1100
2500
1.875-8 UN-2A
8
2300
2900
1800
2200
4
1500
1.750-8 UN-2A
8
1900
2300
1400
1800
2500
2.250-8 UN-2A
8
4100
5100
3100
3900
6
1500
2.000-8 UN-2A
8
2800
3500
2200
2700
2500
2.500-8 UN-2A
8
5700
7100
4300
5400
8
1500
2.000-8 UN-2A
12
2800
3500
2200
2700
2500
2.500-8 UN-2A
(1)
12
5700
7100
4300
5400
1.
Body Bolting Torque Requirements For 77003 only
Packing Box / Standard Packing
Assembly
Visually inspect Plug/Stem & Bonnet packing box for cleanliness
and proper surface finish. Consult Figures 16 & 17 for the proper
number of packing rings and their arrangement. Assemble the
packing box parts (Packing Rings, Packing Follower/Flange,
and Packing Nuts). The skive cuts should be staggered between
consecutive pieces of Packing Rings (approx. 120 degrees). The
Packing Nuts should only be finger tight at this time.
Figure 16: Standard Packing
Figure 17: Double Packing
Ref. No.
Description
B122
PLUG/STEM
B213
PACKING FLANGE
B212
PACKING FOLLOWER
B207
PACKING SET
B200
PACKING STUDS
B201
PACKING NUTS
Ref. No.
Description
B122
PLUG/STEM
B213
PACKING FLANGE
B212
PACKING FOLLOWER
B207
PACKING SET
B211
LANTERN RING
B200
PACKING STUDS
B201
PACKING NUTS