Manual D450 • Fishing Bumper Subs • Page 23
Logan Fishing Bumper Sub
•
23
RECOMMENDED TIGHTENING TORQUES
Top Sub
Knocker
Middle Body
Mandrel
Mandrel to Knocker
(internal connection)
Mandrel Body
MAXIMUM RECOMMENDED TIGHTENING TORQUES (FT-LBS)
COMPLETE ASSEMBLY
Logan Part No. 604-675
604-775
604-900
Bowen No.
10690
26595
61596
MANDREL TO KNOCKER
10,500
20,250
31,250
MANDREL BODY TO MIDDLE BODY
17,250
23,150
47,000
MIDDLE BODY TO TOP SUB
17,250
23,150
47,000
TORQUE@YIELD (FT-LBS)
34,500
46,200
94,450
The makeup torques listed above are the maximum recommended makeup torques for each connection.
Values are set at 50% of the calculated theoretical yield torque. Torques this high are not required for all fishing jobs.
Lower values will result in less thread wear.
The tightening torque values were calculated assuming Itcolube or similar zinc-based grease was applied to all threads and shoulders.
MAXIMUM RECOMMENDED TIGHTENING TORQUES (FT-LBS)
COMPLETE ASSEMBLY
Logan Part No. 604-181
604-225
604-313
604-315
604-338
604-375
604-376
Bowen No.
10120
18785
42592
10105
10190
39887
39893
MANDREL TO KNOCKER
325
650
1,600
1,700
2,150
3,800
3,100
MANDREL BODY TO MIDDLE BODY
1,250
1,125
1,550
2,500
2,850
3,500
3,400
MIDDLE BODY TO TOP SUB
1,250
1,125
1,550
2,500
2,850
3,500
3,400
TORQUE@YIELD (FT-LBS)
2,500
2,250
3,100
5,050
5,800
6,800
6,800
MAXIMUM RECOMMENDED TIGHTENING TORQUES (FT-LBS)
COMPLETE ASSEMBLY
Logan Part No. 604-377
604-425
604-450
604-475
604-476
604-600
604-625
Bowen No.
10090
41824
36794
39905
10225
10135
10257
MANDREL TO KNOCKER
2,300
3,400
4,650
5,450
6,050
9,850
12,000
MANDREL BODY TO MIDDLE BODY
4,700
6,000
5,075
9,100
8,950
19,000
18,650
MIDDLE BODY TO TOP SUB
4,700
6,000
5,075
9,100
8,950
19,000
18,650
TORQUE@YIELD (FT-LBS)
9,400
12,000
10,150
18,250
17,950
38,850
37,250
“Bowen” is a registered trademark of National Oilwell Varco.
Logan Fishing Bumper Sub
•
23
RECOMMENDED TIGHTENING TORQUES
Top Sub
Knocker
Middle Body
Mandrel
Mandrel to Knocker
(internal connection)
Mandrel Body
MAXIMUM RECOMMENDED TIGHTENING TORQUES (FT-LBS)
COMPLETE ASSEMBLY
Logan Part No. 604-675
604-775
604-900
Bowen No.
10690
26595
61596
MANDREL TO KNOCKER
10,500
20,250
31,250
MANDREL BODY TO MIDDLE BODY
17,250
23,150
47,000
MIDDLE BODY TO TOP SUB
17,250
23,150
47,000
TORQUE@YIELD (FT-LBS)
34,500
46,200
94,450
The makeup torques listed above are the maximum recommended makeup torques for each connection.
Values are set at 50% of the calculated theoretical yield torque. Torques this high are not required for all fishing jobs.
Lower values will result in less thread wear.
The tightening torque values were calculated assuming
Kopr-Kote
or similar
copper
-based
thread compound
was applied to all threads and shoulders.
LEGAL NOTICE
All references to Bowen
®
part numbers in this literature are used to identify interchangeable tools and parts. Reference to such tools and parts
does not imply that Logan Oil Tools is a licensee or is in any way affiliated with National Oilwell Varco. Logan Oil Tools does not sell, or offer
to
sell, National Oilwell Varco (Bowen) products.
MAXIMUM RECOMMENDED TIGHTENING TORQUES (FT-LBS)
COMPLETE ASSEMBLY
Logan Part No. 604-181
604-225
604-313
604-315
604-338
604-375
604-376
Bowen No.
10120
18785
42592
10105
10190
39887
39893
MANDREL TO KNOCKER
325
650
1,600
1,700
2,150
3,800
3,100
MANDREL BODY TO MIDDLE BODY
1,250
1,125
1,550
2,500
2,850
3,500
3,400
MIDDLE BODY TO TOP SUB
1,250
1,125
1,550
2,500
2,850
3,500
3,400
TORQUE@YIELD (FT-LBS)
2,500
2,250
3,100
5,050
5,800
6,800
6,800
MAXIMUM RECOMMENDED TIGHTENING TORQUES (FT-LBS)
COMPLETE ASSEMBLY
Logan Part No. 604-377
604-425
604-450
604-475
604-476
604-600
604-625
Bowen No.
10090
41824
36794
39905
10225
10135
10257
MANDREL TO KNOCKER
2,300
3,400
4,650
5,450
6,050
9,850
12,000
MANDREL BODY TO MIDDLE BODY
4,700
6,000
5,075
9,100
8,950
19,000
18,650
MIDDLE BODY TO TOP SUB
4,700
6,000
5,075
9,100
8,950
19,000
18,650
TORQUE@YIELD (FT-LBS)
9,400
12,000
10,150
18,250
17,950
38,850
37,250
