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DATASHEET FOR LEAK REPAIR CLAMP
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DOCUMENT NO.: GGL/TS-FITTINGS/008
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REV-00
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Issued for Technical Committee Approval
16/07/2012
Revision No.
Revision Description
Date
,Econnect Id : 77100 Approved by: Upendrakumar Sharma on 18/10/2022
,Approval Note/Document Ref No:DATASHEET FOR LEAK REPAIR CLAMP - GGL/TSFITTINGS/008
E-TENDER-575221
DATASHEET FOR LEAK REPAIR CLAMP
Sr. No.
Description
Specification
1.
General
1.1
Clamp Size
1.2
Pressure Rating
1.3
Design Standard (latest edition)
2.
Service Conditions
2.1
Service
2.2
Pipe material & Grade (Existing)
2.3
Design Pressure
2.4
Design Temperature
3.
Construction and Design
3.1
3.2
4.
Location / Installation
Above Ground OR Under Ground
Coupling & Vent Plug
Required
Material Specification (Equivalent OR Superior)
4.1
4.2
Part
Body
Stiffeners
4.3
Stud & Nut
4.4
Sealing Material
Viton OR superior
Shelf life of the materials should be minimum 4 years
4.5
Coupling and Vent Plug
Required : ASTM A 105
4.6
Lifting Hook
Required : Carbon Steel
1 nos / 2 nos. of lifting hooks on each half depending
upon weight /size
4.7
5.
Heat Insulating Cord
Inspection and Testing
5.1
Chemical Composition
5.2
Mechanical Properties
4" and above
150#
300#
600#
ASME B 31.8
API 6H
ASME Section VIII Div.1
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Natural Gas
API 5L Gr. B to Gr. X65
ASTM A 333 Gr.6
ASTM A 106
For 150# : 19 Bar-g
For 300# : 49 Bar-g
For 600# : 98 Bar-g
For 150# : 0°C to 65°C
For 300# & 600# : (-10°)C to 65°C
Specified Material
ASTM A 516 Gr. 70
ASTM A 105 OR ASTM A 516 Gr. 70
 Stud : ASTM A 193 Gr. B7
 Nut : ASTM A 194 Gr.2H
 Hot Dip Galvanized : ASTM A 153
Required : Teflon OR Superior
For Body, Stiffeners, Stud & Nut, Sealing Material,
Coupling and Vent plug : As per the applicable standard
For Body, Stiffeners and Stud & Nuts : As per the
applicable standard
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E-TENDER-575221
DATASHEET FOR LEAK REPAIR CLAMP
Hydrotesting
5.4
Ultrasonic Testing
5.5
Other Non-Destructive Testing
5.6
Painting
5.7
Marking
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5.3
In case Charpy test value not specified in relevant codes
and standards than Charpy shall be carried out at 0 °C
and absorbed energy value shall be average 27 J and
minimum 28 J respectively.
1.5 X Design Pressure, Hold time 1 Hour
All seals shall be replaced upon completion of Hydrotest
Plates shall be 100% Ultrasonically tested for
laminations and crack
All weld ends shall be 100% ultrasonically tested for
laminations and crack up-to a length of 50 mm
 MPI for Fillet weld : Stiffener to Shell weld and Hinge
Welds
 UT for Filler weld : Vent plug welds
 Other NDT requirement as per the standard
Internal Surface :
 Zinc rich primer with minimum coating thickness of
100 micron. Uniformly applied on body (uncovered by
seal)
External Surface :
 Surface Preparation as per SSPC SP (SA 2 ½ ).
 Primer coat – Epoxy based Zinc rich primer – 100
micron
 Intermediate coat – Polyamide Epoxy – 100 micron
 Final coat (Two coat) – Acrylic Polyurethane – 40
micron each.
Name of Manufacturer, Year of Manufacturing, PO
Number, Size & Pressure class to be engraved on the
fitting
Additionally - Size & pressure class to be stencil painted
on both part of clamp
6. Dimensions
6.1
Length of Clamp
As per Manufacturer Recommendation
6.2
Sealing Width
As per Manufacturer Recommendation
6.3
Stud & Nut
As per Manufacturer Recommendation
Notes:
1. This data sheet shall be read in conjunction with SOR and Technical Specifications.
2. Inspection and Testing shall be as per this Data Sheet, GGL Specification, API 6H and ASME VIII Dec.1
latest edition. Inspection shall be carried out by TPI at Manufacture’s work as per QAP approved by
GGL.
3. Vendor to submit Quality Assurance Plane (QAP) and General Arrangement Drawing (GAD) for review
and approval prior to commencement of manufacturing. Vendor to refer attached sample QAP for
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DATASHEET FOR LEAK REPAIR CLAMP
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reference only. GAD shall mention all dimensions including overall length, sealing length, sealing width,
inside diameter, Torque for tightening the leak clamp, total weight of clamp etc.
4. Test Certificates shall be reviewed by client/TPIA as per approved QAP, GA drawing, Inspection & Test
certificates including NDE.
5. Bidder shall clearly mention deviation, if any at the time of bid submission. No deviation shall be
accepted post placement of order.
6. TPIA shall issue EN 10204 3.2 certification for testing & inspection of valves
7. Non-Destructive Examination
 All finished product shall 100% ultrasonically tested for any type defects. Laminations shall not be
acceptable.
 After final machining, all bevel surfaces shall be inspected by dye penetrate or wet - magnetic
particle methods. Weld repair of bevel surface is not permitted.
8. Vendor shall supply spare seal alongwith each set of leak repair clamp in Nitrogen Purged Aluminum
casing and instruction manual for replacement of spares.
9. Vendor shall supply the clamp with all associated parts including 2 D bolts with 3-meter lifting belt with
each clamp for successful and convenient installation at site.
10. Vendor to provide brochure, installation manual, procedure for installation of the clamp, preservation
and replacement of seals along with supply of clamp.
11. Vendor to arrange one-time demonstration for installation of leak repair clamp. Preferred size shall be
6” NB or above.
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