0 ratings0% found this document useful (0 votes) 709 views10 pagesProcedure Barred Tee
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-WELDBEND
Bar Tees Procedure:Approvals
‘The signatures below certify that this Barred Specification has been reviewed and accepted, and demonstrates that the
signatories are aware of all the requirements contained herein and are committed to ensuring thelr provision,
Name Signature Position Date
rronsity | tondorecacs | ayaa cametstagi | ooxanis
Reviewed by | toucantu Ce ssistant Purchasing Agent | 06/01/2018,
Y oe sssitan Purchasing Agent | 06/01/
Vice-President of
Approves by | Kevin Coulas Lae = Present 0/01/2018
81 Series 4000 RevoB Page 2of 8Contents
CONTENTS 3
1 GENERAL INFORMATION 4
1.2 Purvose 4
1.2 Score 4
1.3 Resenences 4
2. DESIGN AND FABRICATION 4
2.1 GENERAL REQUIREMENTS: 4
2.2 WELDER REQUIREMENTS: a
2.3. SPECIAL REQUIREMENTS: 5
MATERIAL 6
3.1 GuiDe Bars 6
4. INSPECTION AND TESTING 6
4.1 Genera 6
5. TEST CERTIFICATION 7
5.1 Genenat 7
6. REVISION HISTORY 7
BT Series 4000 Rev 0B Page 3 0f 8WELDBEND) Barred Tees Procedure
1 General Information
1.1 Purpose
‘This procedure involves interpretations, requirements, and related processing controls specified on
Barred Tees
1.2 Scope
This procedure covers all requirements that shall apply for Barred Tee Manufacturing
1.3 References
© ASME B16.9 Factory-Made Butt Welding
ings
© ASTM A234
© ASTM A860
© ASME B16.5 Pipe Flanges and Flange Fittings
'* MSS-SP-75 Specification for High-Strength, Wrought, Butt-Welding Fittings
'* Welding Procedure for Barred Tees
2. Design and Fabrication
2.1. General Requirements:
1. Guide bars shall be provided to prevent entry of pigs/ spheres in branch pipeline.
Opening in branch pipeline through scrapper guided bars shall not be more than 40%
of the area of opening in the main pipeline.
2. Barred tee shall provide an unobstructed profile for pigging operations in either
direction,
3. Guide bars shall conform to material quality and manufacturing standards,
and welding compatibility to the main body of the tee.
4, Guide bars shall be of ample proportions and arranged in a configuration presenting
an acceptable streamline contour to allow liquid flow and thus not induce vibration.
5. Guide bars of barred tees should not be welded directly to the high stress areas
around the extrusion neck
6. Guide bar edges on the run side of the tee shall be rounded and bars positioned so
as to contain the cups of a pig within the inner diameter of the run.
‘BT Series 4000 Revoe Page 4 of 8bared Tees Procedure
The bar ends shall be machined or ground to fit into the branch and welding shall be
a continuous fillet weld on both sides.
Burrs of welding material shall not protrude into the run of the tee.
All butt weld ends shall be beveled as per ASME B16.9/ MSS-SP-75 as applicable.
Repair by welding on parent metal of the barred tee is not allowed.
2.2 Welder Requirements:
4
Welder will be designated based on welding experience and competence as per QW-
301, Section IX, ASME Boiler and Pressure Vessel Code.
‘The QA department, Engineering and the welder should discuss this specification and
alll the prints to clarify any questions or concerns
The first tee will be barred, the weld will be inspected and if it has passed the weld
inspection, the welder will be approved to weld the complete order
2.3. Special Requirements:
a
2.
3.
4
5.
81 Series 4000
All guide bars will be welded according to Weldbend prints.
Al guide bars will be marked with the Weldbend logo and bar heat code.
Bars must be nominal 1/2” or 7/8” thickness depending on the tee size.
The relevant welding zones of the tee shall be pre-heated to 200 $F minimum
PWHT (post weld heat treatment) stress relieve at 10002F minimum for 60 minutes
minimum.
Weldbend’s customer when ordering any barred tee agrees to this procedure and
accepts all provisions and requirements as stated
When the customer specifies any change the request must be in writing
All guide bars would be welded according to Procedure Qualification Record SM-H-
101 as per QW/-200.2 Section IX, ASME Boiler and Pressure Vessel Code.
Rev 08 Page S of 83. Material
3.1 Guide Bars
1
2,
4. Inspection and Testing
Barred Tees Procedure
Guide bars shall be ASTM A-36, with the following chemical composition:
Chemical composition %
c Mn* pe
s*
sit
Cute)
0.29 1.20 | 0.04
0.05
0.40
0.20
maximum (a) when specified
Mechanical properties
Yield strength (psi)
Tensile strength (psi)
‘shElongation
Hardness (BHN)
4.1 General
1
BT Series 4000
36 000 minimum
58 000-80 000
20 minimum
187 BHN maximum
The tees shall meet all the mechanical characteristics and chemical composition of
this procedure
Dimensional inspection
The barred tees shall be visually inspected
All fillet weld shall be subject to 100% visual examination
Nondestructive inspection using the liquid penetrant testing method or any other
nondestructive method recommended by the QA Department.
Revog
Page 60f 85. Test Certification
5.1 General
1. MTR for the tee
2. MTR for the guide bar(s)
3. Nondestructive test report when it is required by customer
6. Revision History
Revision Date Name Change Ref.
Note 2.3.2 added
2 03/05/2016 Epitacio Torres Garcia
4.1.5 was revised
2.3.5 Added temperature
and time
3 03/16/2016 Epitacio Torres Garcia
3.1.2 Added minimum yield
strength
Series 4000 added to name
4 (04/04/2016 Epitacio Torres Garcia Note 2.3.3 added
Changed Mn and Si % up to maximum
2.2.1 Added welder certification
5 05/13/2016 Epitacio Torres Garcia
Note 2.3.9 Added
2.3.7 Was changed to reflect
actual practice
6 06/13/2016 Epitacio Torres Garcia Chemical composition add note
maximum to Mn and Si
Reviewed 2.3.3. Deleted 2.3.5.
Added 2.2.2 welder qualification
- 03/25/2018 Epitacio Torres Garcia Added welding procedure as
reference
Deleted 2.1.2
BT Series 4000 Revs Page 7 of 8/ELDBEND) Barred Tees Procedure
Reviewed 2.1.7, 2.241, 2.2.2,
8 06/01/2018 Epitacio Torres Garcia 5.1.2, added 3.2 table
BT Series 4000 Revos Page 8of 84723/2018 11:21:05 AM
oO
OD
(epee
Equally Spaced Bars Equally Spaced Bars
ranch = | Bar 8-10" Branch = 2 Bars
—————
WD
ME’
oD
|
i=
Equally Spaced Bars Equally Spaced Bars
12 - 20" Branch = 3 Bars 24-48" Branch = 5 Bars
4-18" Bars are 1/2" Thick
20 - 48" Bars are 7/8" Thick
216 WELD TEE GUIDE BAR ILLUSTRATION 050-000-000)WELDBEND
al Bar Positioning
Barred tee shall provide an unobstructed profile for pigging operations in either direction
4-18" Bars are 1/2" Thick
20 - 48" Bars are 7/8" Thick
Weare WELD TEE GUIDE BAR ILLUSTRATION DETAIL (050-000-000 DET 1