Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
REV. NO.
REV. DATE
REVISED PAGE
0
20, Jan, 11
-
1
07, Mar, 11
All
Issued for Construction
1A
06, Oct, 11
16~19
Issued for Construction
Project No : 5239 ADGAS / IGD Das Island Project
1A 2 / 24
REVISION DESCRIPTIONS Issued for review
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
1A 3 / 24
TABLE OF CONTENTS
1.0
SCOPE
2.0
REFERENCES
3.0
SAFETY PRECAUTIONS
4.0
BOLT TIGHTENING
5.0
BOLT TORQUE
6.0
BOLT TENSION
7.0
BOLT TIGHTENING INSPECTION
8.0
OTHERS
Attachment #1
BOLT TENSION PRESSURE FOR B7/ B7M/ L7/ L7M
Attachment #2
BOLT TENSION PRESSURE FOR B8M class2
Attachment #3
TORQUE VALUE FOR ASTM A193 B7/ B7M/ A320 L7/ L7M
Attachment #4
TORQUE VALUE FOR ASTM A193 B8M (CLASS2)
Attachment #5
MACHINE BOLT TORQUE VALUE TABLE
Attachment #6
GRE FLANGE BOLTING SEQUENCE AND TORQUE VALUES
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
1.0
1A 4 / 24
SCOPE This procedure describes the methods of bolt tightening by the use of calibrated hydraulic tensioning equipment and manual torque wrenches for IGD-DAS project piping. The hydraulic bolt tensioning work shall be carried out on all flange bolts diameter 1.1/2” and larger diameter size. All bolts below 1.1/2” shall be torqued by manual, electric or hydraulic method. For equipment flange bolt tightening work, HHI shall obtain all the information such as drawings or data sheets required for bolt tightening from equipment vendor and shall apply the vendor recommended bolt tightening values.
2.0
REFERENCES 1) GD-100-A4L-5-90316 : Specification for pipe fabrication, installation, cleaning, flushing and testing. 2) GD-100-A4L-5-94097 : Specification for pipes. 3) GD-100-A4L-5-94098 : Specification for fitting. 4) GD-100-A4L-5-94099 : Specification for flanges. 5) GD-100-A4L-5-94100 : Specification for bolt/nut. 6) GD-100-A4L-5-94101 : Specification for gaskets. 7) GD-100-A4Z-5-90503 : Fabrication and installation procedure for process & utility piping. 8) ANSI B 16.5 : Steel Pipe Flanges and Flanged Fittings. 9) API RP14E : Recommended practice for design and installation of Offshore production platform piping systems. 10) Manufacturer’s recommendation : Hydra Tight
3.0
SAFETY PRECAUTIONS
3.1
Special attention shall be paid to this work as bolt tensioning utilizes high pressure hydraulic oil (maximum 15,000 psi) and shall be conducted diligently, thoroughly and in a safe workman like manner complying with, as a minimum, COMPANY requirements / expectations. Perfect thread engagement between the components shall be identified prior to tensioning work. Electrical equipment shall be equipped with correct grounding, cables shall be isolated and not damaged. Only clean and undamaged bolts and nuts, of the correct grade shall be used.
3.2
Bolt tightening work shall be diligently performed in accordance with “Project Health, Safety and Environmental management plan” procedure.
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
3.3
1A 5 / 24
For high elevation or remote area work, suitable scaffolding with safe access shall be erected. Scaffolding will be suitable for personnel and weight of equipment and mechanical handling facilities will be provided where necessary. Working at heights will be in full compliance with COMPANY’s requirements / expectations. ADGAS scaffolding inspectors will check it’s suitability for the imposed load of operators, torquing equipment and materials. The operators shall be careful not to drop any components during placing or removing the bolt tensioning equipment and area below the activity shall be barriered off.
3.4
The operators shall be equipped with safety glasses, hard hats, gloves and safety shoes.
3.5
Operators shall be experienced with bolt tightening or tensioning before they start their activity for the IGD-DAS project to the requirements of this procedure in correct use of the equipment for their own safety and that of others. Operators shall keep the calibration certificate which is carried out by HHI calibration shop with the equipment they are using.
4.0
BOLT TIGHTENING This document shall be applicable for fabrication & installation at yard as well as module fabricators yard.
4.1
Torque and Tensioning Tolerance for rotation and alignment of the flanged joints shall be followed in accordance with fabrication and installation procedure for process and utility piping (GD-100-A4Z-5-90503) and ASME B31.3(2008). Bolt tightening methods are divided into “bolt torque” and “bolt tensioning” according to the used tools. Bolt torque is done by torque wrench operated by manual, electric, and hydraulic. Bolt tensioning is done by utilizing of hydraulic tensioner, and HHI uses HYDRATIGHT product. All flanges and clamp bolts shall be checked for correct grade and damage prior to fittings. Bolts and nuts shall be visually inspected prior to use for physical damage, dirt or girt that would interfere with the assembly or performance. Ensure that gaskets are correct per project specification and free of any damage.
4.2
Lubricant application For all bolts/nuts, torque and tensioning, lubricant shall be applied to make it easier to tighten nuts, and loose when disassembled.
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
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Lok-cease 20/20, CERTIFIED Co, Product, shall be used (friction factor µ=0.16). 5.0
BOLT TORQUE For bolt sizes less than 1.1/2”, bolts shall be assembled by torque wrench.
5.1
Assembly instructions by torque wrench The following bolt-up procedure is to ensure that bolts are uniformly tightened so the gasket is not prematurely set. a) After verifying that the gasket type, size and material are in accordance with the specifications, align the gasket between the flange faces and secure. b) After verifying that the bolts size and type are in accordance with the specification, install bolts and nuts by hand, applying lubricant and keeping the thread even. c) With a short hand wrench, lightly tighten all the bolts using the “crisscross” bolting pattern. Verify that the gap between the flanges is uniform. d) Tighten all bolts/nuts with correct torque value with torque wrench. Tightening shall be carried out complying with steps of 30%, 60%, 100% or 50%, 100%. e) Check passing is also critical to ensure all bolts achieve the final target torque as setting will occur during the tightening process on bolted flanges and on hub connector clamps. f) A hammer tap test will be carried out before signing off the bolt torquing report, this to ensure that tight thread etc. have not achieved target load.
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
1A 7 / 24
< Bolt tightening sequence >
5.2
GRE flanges bolting sequence and torquing values shall be referred to Attachment #6. Bolt torque value shall be in accordance with AMERON installation recommendation.
5.3
Insulation gasket kit For insulation gasket kit is installed flange joints, the following vendor recommendation values shall be applied.
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
6.0
BOLT TENSION
6.1
General
1A 8 / 24
For bolt sizes 1.1/2” and larger, hydraulic bolt tensioner shall be used for tightening. Prior to tensioning of bolts, the hydraulic pump, interconnection hose, bridge, puller, head and socket shall be checked for any damage or imperfections. The equipment gauge shall be calibrated so that gauge indicates the correct specific pressure. Soft brushing of stud bolts and nuts will be required to remove solid particles. 6.2
The operator shall set the correct hydraulic pressure to achieve the specified bolt tension value for each stud bolt size referring to the tension value tables in ATTACHMENT #1 and #2.
6.3
PB is the final tension pressure which flange bolts should be tightened, and PA is the first tension pressure which is the greater than PB. For each step, from the first tension pressure PA to the last tension pressure PB, tension pressure shall be reduced at a fixed rate for each tensioning. HHI shall prepare the tensioners to reduce the tensioning times and not to exceed 4 times tensioning.
6.4
The operator shall distribute hydraulic heads over the bolts in a manner to ensure uniform tensile forces in order not to damage gaskets during tightening.
6.5
The assembly instructions are :
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
1A 9 / 24
1) Bolts shall be free running and in good engagement with the tensioner. 2) Assemble the bolt with minimum one bolt diameter on the end to be tensioned and minimum one thread at untensioned end. 3) Position the socket over the hexagon nut. 4) Place the hydraulic head and bridge assembly over the bolt. 5) Locate the end of the bolt with the puller and screw down onto the ram. 6) Connect the hydraulic coupling to the pump. Apply the tightening oil pressure referring to the attached values. Turn the hexagon nut using a tommy bar until the nut tightens onto the flange. 7) Remove the tool. 6.6
Above instructions shall be repeated as per the tensioning plan decided by piping foreman until all bolts are evenly tensioned.
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. :
1A
Sheet :
10 / 24
Figure-1. Hydratight recommendation
7.0
1st value
2nd value
3rd value
4th value
2 times tension
PA
PB
-
-
3 times tension
PA
PA+PB 2
PB
-
4 times tension
PA
2*PA+PB 3
PA+2*PB 3
PB
BOLT TIGHTENING INSPECTION The COMPANY reserves the right to witness applied hydraulic pressure for flange joint prior to hydrostatic testing / leak testing activities and reinstatement.
7.1
The inspection notice shall be presented to the COMPANY at least 24 hours prior to the scheduled start of hydraulic bolt tensioning.
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
1A 11 / 24
The bolt tensioning work and inspection shall be done in the presence of the COMPANY’s representative and HHI QC inspector. According to the bolt torque / tensioning, COMPANY inspection and tagging requirement shall be complied with below table. 7.2
Indication after bolt tightening Tightening tag shall be attached to all flanges after bolt tightening activity. All 1.1/2” and larger size bolting shall have the bolt tensioning figures recorded on record sheet. isometric drawing where bolt tensioning work has bee Ink stamp, showing the tensioning values, shall be marked on each joint in the n done.
130 mm
47 mm
* NOTE 1) Plate : Flexible plastic (white colour) 2) Letter : Black colour 3) Wire : SS304 Φ0.3mm x 220mm
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
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8.0
OTHERS
8.1
If hydraulic tension equipment cannot be applied due to space constraints for any reasons, torque wrench may be used only after obtaining specific approval by COMPANY for each individual case. In this case, use the torque value in ATTACHMENT #3 and #4.
8.3
Machine bolts in metric sizes shall be torqued as specified in ATTACHMENT #5. However, it is not expected to have any metric size machine bolts in piping and valves. This table is included for equipment installation.
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
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ATTACHMENT #1 : BOLT TENSION PRESSURE FOR B7 / B7M / L7 / L7M Recommended tension value for HL tensioner (HYDRATIGHT) according to the bolt material B7 / B7M / L7 / L7M. This table provides up to 4 passes tensioning. Tension values are all produced by BOLTUP®V2.8 CALCULATOR (www.boltup.com).
HYDRATIGHT RECOMMENDED TENSIONING VALUES FOR ASTM A190 B7 / B7M / A320 L7 / L7M FLANGE SIZE
BOLT DIA
BOLT QTY
LOAD LBF
TOOL No
1st (PA)
FINAL (PB)
HL2
13570
10856
HL3
9822
7857
(PA+PB)/2
(2PA+PB)/3
(PA+2PB)/3
12213
12665
11761
8840
9167
8512
STRESS (PSI)
% YEILD
40000
38
40000
38
40000
38
40000
38
45000
43
45000
43
45000
43
45000
43
40000
38
40000
38
45000
43
50000
48
50000
48
50000
48
50000
48
45000
43
40000
42
ANSI 150# 36"
1.1/2"
32
56960
ANSI 300# 24"
1.1/2"
24
56960
30"
1.3/4"
28
80000
36"
2"
32
107200
HL2
14246
11397
12822
13296
12347
HL3
10311
8249
9280
9624
8936
HL3
14619
11695
13157
13644
12670
HL4
10958
8766
9862
10227
9497
HL4
14239
11391
12815
13290
12340
HL5
11343
9074
10209
10587
9830
HL2
15136
12108
13622
14127
13117
HL3
10955
8764
9860
10225
9494
HL3
12891
10313
11602
12032
11172
HL4
9663
7730
8697
9019
8374
HL3
12754
10203
11479
11904
11053
HL4
9560
7648
8604
8923
8285
HL4
13523
10818
12171
12621
11720
HL5
10772
8618
9695
10054
9336
HL4
13869
11095
12482
12944
12020
HL5
11048
8838
9943
10311
9575
HL6
14222
11378
12800
13274
12326
HL7
11368
9094
10231
10610
9852
HL5
15448
12359
13904
14418
13389
HL6
11999
9599
10799
11199
10399
ANSI 600# 16"
1.1/2"
20
64080
18"
1.5/8"
20
76500
20"
1.5/8"
24
76500
24"
1.7/8"
24
104850
30"
2"
28
107200
36"
2.1/2"
28
172800
40"
2.1/4"
32
155250
ANSI 900# 14"
1.1/2"
20
71200
16"
1.5/8"
20
85000
18"
1.7/8"
20
116500
20"
2"
20
134000
24"
2.1/2"
20
194400
30"
3"
20
254400
HL2
16101
12881
14491
15028
13954
HL3
11654
9323
10489
10877
10100
HL3
13826
11061
12444
12904
11983
HL4
10364
8291
9328
9673
8982
HL4
14578
11663
13121
13606
12635
HL5
11613
9291
10452
10839
10065
HL4
16605
13284
14945
15498
14391
HL5
13228
10582
11905
12346
11464
HL6
15121
12097
13609
14113
13105
HL7
12086
9669
10878
11280
10475
HL8
14385
11508
12947
13426
12467
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
HL8.5
12101
9681
HL3
13767
11014
HL4
10320
HL4
10891
1A 14 / 24
11294
10488
12391
12849
11932
8256
9288
9632
8944
14496
11597
13047
13530
12563
HL5
11548
9238
10393
10778
10008
HL4
16289
13031
14660
15203
14117
HL5
12976
10381
11679
12111
11246
HL5
15525
12554
14040
14535
13544
HL6
12189
9751
10970
11376
10564
HL6
14989
11991
13490
13990
12990
HL7
11980
9584
10782
11181
10383
HL7
14626
11701
13164
13651
12676
HL8
12726
10181
11454
11878
11029
276425
HL8
15000
12000
13500
14000
13000
43463
286200
HL8.5
13065
10452
11759
12194
11323
45000
336313
HL8.5
15000
12000
13500
14000
13000
38217
47
HL2
17689
14151
15920
16510
15330
HL3
12803
10243
11523
11950
11096
55000
52
HL4
16615
13292
14954
15507
14400
HL5
13236
10589
11913
12354
11471
50000
48
HL4
16238
12991
14615
15156
14073
HL5
12936
10349
11643
12074
11211
50000
48
HL6
16125
12900
14513
15050
13975
HL7
12889
10311
11600
12030
11170
50000
48
HL7
16921
13536
15229
15793
14664
HL8
14722
11778
13250
13741
12759
55000
58
ANSI 1500# 8"
1.5/8"
12
85000
10"
1.7/8"
12
116500
12"
2"
16
134000
14"
2.1/4"
16
155250
16"
2.1/2"
16
194400
18"
2.3/4"
16
238500
20"
3"
16
24"
3.1/2"
16
50000
48
50000
48
50000
48
45000
43
45000
43
45000
43
47
ANSI 2500# 4"
1.1/2"
8
78320
6"
2"
8
134000
8"
2"
12
134000
10"
2.1/2"
12
216000
12"
2.3/4"
12
291500
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
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ATTACHMENT #2 : BOLT TENSION PRESSURE FOR B8M class 2 Recommended tension value for HL tensioner (HYDRATIGHT) according to the bolt material B8M Class2. This table provides up to 4 passes tensioning. Tension values are all produced by BOLTUP®V2.8 CALCULATOR (www.boltup.com).
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
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Rev. No. : Sheet :
1A 16 / 24
ATTACHMENT #3 : TORQUE VALUE FOR ASTM A193 B7 / B7M / A320 L7 / L7M HYDRATIGHT RECOMMENDED TORQUE VALUES FOR ASTM A193 B7 / B7M / L7 / L7M
FLANGE SIZE
BOLT SIZE
BOLT QTY
RESIDUAL BOLT LOAD (N)
RESIDUAL BOLT STRESS (PSI)
TORQUE (lbft) K = 0.16
TORQUE (NM) K = 0.16
RESIDUAL YIELD (%)
ANSI 150# 1/2"
1/2"
4
17125
45000
55
75
43%
1"
1/2"
4
20084
45000
55
75
43%
1 1/2"
1/2"
4
25822
45000
55
75
43%
2"
5/8"
4
41435
45000
108
147
43%
3"
5/8"
4
46039
45000
108
147
43%
4"
5/8"
8
41435
45000
108
147
43%
6"
3/4"
8
68725
45000
190
258
43%
8"
3/4"
8
68725
45000
190
258
43%
10"
7/8"
12
76331
45000
305
413
43%
12"
7/8"
12
85873
45000
305
413
43%
14"
1"
12
112696
45000
454
615
43%
16"
1"
16
100174
45000
454
615
43%
18"
1 1/8"
16
148326
45000
664
900
43%
24"
1 1/4"
20
188960
45000
931
1262
43%
ANSI 300# 1/2"
1/2"
4
22953
45000
55
75
43%
2"
5/8"
8
36831
45000
108
147
43%
3"
3/4"
8
54980
45000
190
258
43%
5"
3/4"
8
68725
45000
190
258
43%
6"
3/4"
12
61852
45000
190
258
43%
8"
7/8"
12
85873
45000
305
413
43%
12"
1 1/8"
16
148326
45000
664
900
43%
16"
1 1/4"
20
188960
45000
931
1262
43%
18"
1 1/4"
24
188960
45000
931
1262
43%
24"
1 1/2"
24
285043
45000
1661
2251
43%
ANSI 600# 1"
5/8"
4
36831
45000
108
147
43%
1 1/2"
3/4"
4
61852
45000
190
258
43%
2"
5/8"
8
46039
45000
108
147
43%
3"
3/4"
8
61852
45000
190
258
43%
4"
7/8"
8
95414
45000
305
413
43%
6"
1"
12
112696
45000
454
615
43%
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
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Rev. No. : Sheet :
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8"
1 1/8"
12
164807
45000
664
900
43%
12"
1 1/4"
20
188960
45000
931
1262
43%
16"
1 1/2"
20
285042
45000
1661
2251
43%
18"
1 5/8"
20
340289
45000
2136
2896
43%
24"
1 7/8"
24
466396
45000
3347
4538
43%
ANSI 900# 2"
7/8"
8
85873
45000
305
413
43%
3"
7/8"
8
95414
45000
305
413
43%
4"
1 1/8"
8
148326
45000
664
900
43%
6"
1 1/8"
12
164807
45000
664
900
43%
10"
1 3/8"
16
234599
45000
1261
1710
43%
16"
1 5/8"
20
340289
45000
2136
2896
43%
20"
2"
20
536455
45000
4091
5547
43%
24"
2 1/2"
20
864734
45000
8154
11056
43%
ANSI 1500# 3"
7/8"
8
95414
45000
305
413
43%
4"
1 1/8"
8
148326
45000
664
900
43%
6"
1 1/8"
12
164807
45000
664
900
43%
8"
1 5/8"
12
340289
45000
2136
2896
43%
10"
1 7/8"
12
466396
45000
3347
4538
43%
12"
2"
16
536455
45000
4091
5547
43%
14"
2 1/4"
16
690586
45000
5890
7986
43%
16"
2 1/2"
16
864734
45000
8154
11056
43%
18"
2 3/4"
16
864734
45000
10959
14858
43%
20"
3"
16
864734
45000
14301
19389
43%
24"
3 1/2"
16
864734
45000
22959
31128
43%
ANSI 2500# 1"
7/8"
4
21450
45000
305
413
43%
1 1/2"
1"
4
25335
45000
454
615
43%
2"
7/8"
8
21450
45000
305
413
43%
4"
1.1/2"
8
285042
45000
1661
2251
43%
6"
2"
8
536455
45000
4091
5547
43%
8"
2"
12
536455
45000
4091
5547
43%
10"
2.1/2"
12
864734
45000
8154
11056
43%
12"
2.3/4"
12
864734
45000
10959
14858
43%
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. :
1A
Sheet :
18 / 24
ATTACHMENT #4 : TORQUE VALUE FOR ASTM A193 B8M (CLASS2)
HYDRATIGHT RECOMMENDED TORQUE VALUES FOR ASTM A193 B8M Class 2 STAINLESS STEEL BOLT
FLANGE SIZE
BOLT SIZE
BOLT QTY
RESIDUAL BOLT LOAD (N)
RESIDUAL BOLT STRESS (PSI)
TORQUE (lbft) K = 0.16
TORQUE (NM) K = 0.16
RESIDUAL YIELD (%)
34%
ANSI 150# 1/2"
1/2"
4
18649
32500
40
54
3/4"
1/2"
4
18649
32500
40
54
1"
1/2"
4
18649
32500
40
54
34%
1 1/2"
1/2"
4
18649
32500
40
54
34%
2"
5/8"
4
29925
32500
78
106
34%
3"
5/8"
4
29925
32500
78
106
34%
4"
5/8"
8
29925
32500
78
106
34%
6"
3/4"
8
44671
32500
137
186
34%
8"
3/4"
8
44671
32500
137
186
34%
10"
7/8"
12
62019
32500
220
298
34%
12"
7/8"
12
62019
32500
220
298
34%
14"
1"
12
81391
32500
328
444
34%
16"
1"
16
81391
32500
328
444
34%
18"
1 1/8"
16
107124
32500
479
650
34%
24"
1 1/4"
20
136470
32500
672
911
34%
ANSI 300# 1/2"
1/2"
4
18649
32500
220
298
34%
2"
5/8"
8
29925
32500
78
106
34%
3"
3/4"
8
44671
32500
137
186
34%
5"
3/4"
8
44671
32500
137
186
34%
6"
3/4"
12
44671
32500
137
186
34%
8"
7/8"
12
62019
32500
220
298
34%
12"
1 1/8"
16
107124
32500
479
650
34%
16"
1 1/4"
20
136470
32500
672
911
34%
18"
1 1/4"
24
136470
32500
672
911
34%
24"
1 1/2"
24
205864
32500
731
991
34%
ANSI 600# 1"
5/8"
4
29925
32500
78
106
34%
1 1/2"
3/4"
4
44671
32500
137
186
34%
2"
5/8"
8
29925
32500
78
106
34%
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. :
1A
Sheet :
19 / 24
3"
3/4"
8
44671
32500
137
186
34%
4"
7/8"
8
62019
32500
220
298
34%
6"
1"
12
81391
32500
328
444
34%
8"
1 1/8"
12
107124
32500
479
650
34%
12"
1 1/4"
20
136470
32500
672
911
34%
16"
1 1/2"
20
205864
32500
731
991
34%
18"
1 5/8"
20
205864
32500
947
1284
34%
24"
1 7/8"
24
205864
32500
1484
2012
34%
ANSI 900# 2"
7/8"
8
62019
32500
220
298
34%
3"
7/8"
8
62019
32500
220
298
34%
4"
1 1/8"
8
107124
32500
479
650
34%
6"
1 1/8"
12
107124
32500
479
650
34%
16"
1 5/8"
20
205864
32500
947
1284
34%
20"
2"
20
205864
32500
1790
2427
34%
24"
2 1/2"
20
205864
32500
3538
4798
34%
ANSI 1500# 3"
7/8"
8
62019
32500
220
298
34%
4"
1 1/8"
8
107124
32500
479
650
34%
6"
1 1/8"
12
107124
32500
479
650
34%
8"
1 5/8"
12
205864
32500
947
1284
34%
10"
1 7/8"
12
205864
32500
1484
2012
34%
12"
2"
16
205864
32500
1790
2427
34%
14"
2 1/4"
16
205864
32500
2579
3497
34%
16"
2 1/2"
16
205864
32500
3538
4798
34%
18"
2 3/4"
16
205864
32500
4795
6502
34%
20"
3"
16
205864
32500
6263
8493
34%
24"
3 1/2"
16
205864
32500
10071
13656
34%
ANSI 2500# 1"
7/8"
4
62019
32500
220
298
34%
1 1/2"
1"
4
81391
32500
328
444
34%
2"
7/8"
8
62019
32500
220
298
34%
4"
1.1/2"
8
205864
32500
731
991
34%
6"
2"
8
205864
32500
1790
2427
34%
8"
2"
12
205864
32500
1790
2427
34%
10"
2.1/2"
12
205864
32500
3538
4798
34%
12"
2.3/4"
12
205864
45000
4795
6502
43%
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. :
1A
Sheet :
20 / 24
ATTACHMENT #5 : MACHINE BOLT TORQUE VALUE TABLE
FINAL TORQUE THREAD TYPE
BOLT SIZE
NON COATED
COATED
N.M
FT.LBS
N.M
FT.LBS
M14
101
75
78
58
M16
156
115
120
89
M20
303
224
233
173
M24
522
386
402
297
M27
773
572
595
440
M30
1047
775
806
597
M33
1427
1056
1099
813
M36
1833
1356
1411
1044
M39
2386
1766
1837
1360
M42
2950
2183
2272
1681
M45
3699
2737
2848
2108
M48
4446
3290
3423
2533
M52
5740
4248
4420
3271
M56
7101
5255
5468
4046
M64
10644
7877
8196
6065
M68
11675
8640
8990
6652
M76
16618
12297
12796
9469
M85
23543
17422
18128
13415
Metric
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
1A 21 / 24
ATTACHMENT #6 : GRE FLANGES BOLTING SEQUENCE AND TORQUING VALUES Assembly instructions for Bondstrand Fiberglass flanges 1. Scope These instructions present AMERON’s recommendations for the proper use of Bondstrand fibreglass flanges. The mounting of flanges on the pipe is addressed by the assembly instructions for the particular joint type and adhesive used. 2. Bolt torque value for GRE pipe Heavy Duty (HD) type flange The heavy duty type flanges are used for pressures up to 50 barg. HD type flanges are available with a Quick-lock (size 1~16 inch) or Taper/Taper (size 2~40 inch) adhesive bonded joint. Heavy duty type flanges can be used when connecting to raised faced metal flanges and wafer type valves. Stub-end (Lap joint) type flange. Stub-end type flanges are suitable for high pressures upto 100 bar. Stub end flanges can be supplied with an O-ring groove or a flat in combination with suitable gasket. Stub-end type flanges are available with a quick-lock(size 1~16 inch) or taper/taper (size 2~40 inch) adhesive bonded joint. Stub-end type flanges can be used when connecting to raised faced metal flange and wafer type valves. 2.1 Bolt and nut specification for GRE Bolt and nut is ‘studs A193 B7, Hh nuts A194 2H zinc-plated / bichromate-treated’, which are the same bolt/nut with carbon steel piping. HD flange bolt torque values
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
1A 22 / 24
Stub-end flange bolt torque values
3. Alignment Flange joints shall be installed aligned and stress free. Never pull flanges together by tightening the bolts. See below table for maximum misalignment allowance. Flange size range
A
B
1 – 16 inch
1 mm
2 mm
18 - 40 inch
2 mm
4 mm
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
1A 23 / 24
4. Flange Jointing Place the gasket between the two flange faces.
Insert the bolts and finger- tighten all nuts. Bolt threads must be clean and lubricated to attain proper torque. Use lubricated washers under both nuts and bolt heads to protect flange back face.
Tighten all nuts following the sequences shown under “tightening sequence”. Do not exceed the torque increments given in “Recommended bolt torques”. After all bolts have been tightened to the recommended torque, re-check the torque on each bolt in the same sequence, since previously tightened bolts may have relaxed.
Project No : 5239 ADGAS / IGD Das Island Project
Doc. No. : GD-100-A4Z-5-90506
BOLT TIGHTENING PROCEDURE FOR PIPING
Rev. No. : Sheet :
5. Tightening Sequence
Project No : 5239 ADGAS / IGD Das Island Project
1A 24 / 24
