Doc No: RPT50001989
Rev: E Page 1 of 9
REPORT, ENGINEERING BULLETIN, FOR CUSTOMER USE,
FLOWLINE, WALL THICKNESS MEASURMENT CRITERIA FOR
WECO AND CHIKSAN PRODUCTS
Rev
ECN No.
Date
Reviewed By
Approved By
Status
E
5053301
18-NOV-2020
Bedwell2, Cody
Soltau, James
RELEASED
Summary:
This document provides wall thickness measurement criteria for the Flowline
equipment. This document along with RPT50002000 also replaces Engineering
Bulletin 102C.
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
Doc No: RPT50001989
Rev: E Page 2 of 9
Engineering Bulletin
1.0
Scope
The purpose of this document is to provide inspection personnel with minimum
pressure boundary wall thickness criteria for Weco® and Chiksan® (hereafter
referred to a "Flowline") products. For guidance on routine maintenance and other
inspection criteria, the end user should consult product specific operating manuals
and Integrated Services procedures.
CAUTION
2.0
Due to variability of service conditions, the service life of life of oilfield
temporary piping can vary widely. In order to maximize the useful life of
Chiksan and Weco products, the end user must institute appropriate
inspection procedures with due consideration of all service conditions.
Background
Oil well pumping services such as hydraulic fracturing involve the movement of
slurries with abrasive solids at high flow rates. Over time, temporary piping equipment
can experience significant loss of pressure boundary wall thickness.
The minimum wall thickness values in the tables of this document are a result of a
consistent application of pressure boundary calculations per ASME Boiler and
Pressure Vessel Code Section VIII Division 2, and acceptance criteria in accordance
with API 6A for non-standard materials.
WARNING
3.0
Never take TechnipFMC Flowline equipment above its rated working
pressure. The minimum wall thickness criteria in this document assume
that rated working pressure is never exceeded during operation, pre-job
testing or recertification for service.
Use of this Document
This document only provides wall thickness acceptance criteria. Actual inspection
methodology requirements such as inspection frequency, inspection scope and
acceptable measurement techniques are beyond the scope of this document. All
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
Doc No: RPT50001989
Rev: E Page 3 of 9
such inspection activity on Flowline products should be carried out in accordance with
Integrated Services procedures or other procedures approved by TechnipFMC.
When wall thickness measurements are taken, they must be compared with the
minimum allowable thickness for the product and feature per the applicable table(s)
within this document. If any inspected wall thickness falls at or below the specified
minimum allowable thickness, the component or product must be replaced. It is
highly recommended that the rate of erosion wear be analyzed to ensure that the
minimum wall thickness is not violated prior to the next scheduled inspection.
Use of temporary piping equipment with wall thickness in any area below
that specified in this document can result in death, severe injury and
significant property damage.
WARNING
4.0
Minimum Wall Thickness Tables
Tables 4.1 through 4.4 on the following pages contain minimum wall thickness criteria
for Flowline products. These values apply to products manufactured specifically by
TechnipFMC.
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
Doc No: RPT50001989
Rev: E Page 4 of 9
Table 4.1: Minimum Eroded Wall Thickness for Various Swivel Joints/ Longsweep
Elbows in Bend and Straight Areas (Not at Swivel or Male Sub End)
Nominal
Size
1"
Model(s)
Minimum Thickness
(inches)
LS10, LS15, LSG10
0.178
LS10, LS15
0.243
2"
LS10, LS15, LSG10
LS20, LSG15
0.309
0.386
3"
HP (602)
LS7, LS10
TSi-10, TS10
LS15, LSG10
TSi-15, TS15, TSI+15
LS20, LSG15
TSi-20
0.292
0.299
0.280
0.434
0.403
0.721
0.662
4"
FS4 (4000 CWP)
HP6
HPX
LS10
XHTL, LSG10
TSi-10
TSi-15
0.310
0.381
0.419
0.390
0.562
0.359
0.517
1-1/2"
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
Doc No: RPT50001989
Rev: E Page 5 of 9
Table 4.2: Minimum Eroded Wall Thickness Under Male Ball Race for Swivel Joints
Nominal
Size
Model(s)
Minimum Thickness
(inches)
1"
LS10, LS15
LSG10*
0.104
0.075
1-1/2"
LS10, LS15
0.145
2"
LS10, LS15
LSG10*
LS20
LSG15*
0.188
0.142
0.259
0.221
3"
HP (602)
LS7, LS10
LS15
LSG10*
LS20
LSG15*
TSi-10, TSi-15, TSI+15
TSi-20
0.212
0.176
0.271
0.205
0.476
0.395
0.268
0.430
4"
FS4 (4000 CWP)
HP6
HPX
LS10
XHTL
LSG10*
TSi-10
TSi-15
0.176
0.231
0.306
0.224
0.346
0.255
0.211
0.312
* Minimum wall for sour gas swivels are with snap-in races removed
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
Doc No: RPT50001989
Rev: E Page 6 of 9
Table 4.3: Minimum Eroded Wall Thickness for Detachable Wing Union behind Male
Sub Shoulder
Nominal Figure
Size
Number
Standard
Service
Minimum
(Inches)
Sour Gas
Service
Minimum
(inches)
1"
1502
0.228
0.171
1-1/2"
1502
0.325
0.244
2"
602
0.131
0.248
1002
0.212
0.191
1502
0.316
0.283
2002
0.396
----
2202
----
0.364
602
0.196
0.411
1002
0.332
0.314
1502
0.474
0.407
1505
0.591
----
2002
0.821
----
2202
----
0.754
3"
4"
602
(All except 4" HP6)
0.313
0.502
602
(4" HP6, only)
0.452
----
0.422
0.349
1002
1502
(All except 4" XHTL)
0.592
0.534
1502
(4" XHTL, only)
0.648
----
602 to 2202
1505
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
Doc No: RPT50001989
Rev: E Page 7 of 9
Table 4.4: Minimum Eroded Wall Thickness for Pup Joints in Tubular Area
Nominal
Size
Figure
Number
Standard
Service
Minimum
(Inches)
Sour Gas
Service
Minimum
(Inches)
Non-Pressure Seal Thread Pup Joints:
1" (1.375" OD)
1" (1.315" OD)
1502
1502
0.153
0.146
0.126
0.120
1 1/2"
1502
0.222
0.182
2"
602
1002
1502
0.114
0.184
0.246
0.136
---0.217
3"
602
1002
1502
0.168
0.270
0.361
0.200
0.246
0.319
4"
602
1002
1502
1502
0.200
0.323
0.499
0.473
0.256
0.315
0.409
----
4" (4.50" OD)
4" (4.75" OD)
Integral Pup Joints and Swivel Joint Hose Straight Pieces
1"
1502
0.212
0.175
1 1/2"
1502
0.289
0.238
2" (3.00" OD)
602
1002
1502
0.159
0.255
0.364
0.189
---0.300
2" (2.75" OD)
602
1002
1502
0.146
0.233
0.332
0.173
---0.274
2" (2.50" OD)
602
1002
1502
0.134
0.215
0.306
0.159
---0.252
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
Doc No: RPT50001989
Rev: E Page 8 of 9
Table 4.4: Minimum Eroded Wall Thickness for Pup Joints in Tubular Area (Continued)
Nominal
Size
Figure
Number
Standard
Service
Minimum
(Inches)
Sour Gas
Service
Minimum
(Inches)
Integral Pup Joints and Swivel Joint Hose Straight Pieces (Continued)
2" (2.38" OD)
602
1002
1502
2002
2202
0.115
0.184
0.246
0.366
----
0.136
---0.217
---0.336
3" (4.12" OD)
602
1002
1502
1505
0.219
0.350
0.500
0.500
0.259
0.319
0.412
0.412
3" (3.75" OD)
602
1002
1502
1505
0.193
0.309
0.442
0.442
0.252
0.263
0.341
0.341
3" (5.41" OD)
2002
2202
0.824
----
---0.757
3" (5.25" OD)
2002
2202
0.736
----
---0.704
4" (5.00" OD)
602
1002
0.240
0.386
0.285
0.350
4" (5.25" OD)
1502
0.578
0.475
2"
2002
2202
0.348
----
---0.336
3"
2002
2202
0.783
----
---0.757
Fabricated Pup Joints:
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.
Doc No: RPT50001989
Rev: E Page 9 of 9
Table 4.4: Minimum Eroded Wall Thickness for Pup Joints in Tubular Area (Continued)
Nominal
Size
Figure
Number
Pressure Rating
(psi)
Standard
Service
Minimum
(Inches)
Line Pipe Thread Swivel Joint Hoses:
1"
602
1502
6,000
10,000
0.146
0.107
1 1/2"
602
1502
6,000
10,000
0.096
0.155
2"
602
1502
6,000
10,000
0.114
0.184
3"
602
1502
6,000
7,500
0.156
0.207
This document and all the information contained herein are the confidential and exclusive property of TechnipFMC,
and may not be reproduced, disclosed, or made public in any manner prior to express written authorization by TechnipFMC.