Bhabha Atomic Research Centre ( BARC ), Department of ...
Transcript of Bhabha Atomic Research Centre ( BARC ), Department of ...
Fabrication, Testing and Supply of Various Bellows (Page 1 of 20)
Technical Specification
For
Fabrication, Testing and Supply of various Bellows
Fabrication, Testing and Supply of Various Bellows (Page 2 of 20)
Table of contents
Contents
1.0 Scope ........................................................................................................................... 3
2.0 Applicable codes, Standards and Drawings............................................................ 4
3.0 Introduction ............................................................................................................... 4
4.0 Design ......................................................................................................................... 5
5.0 Material Requirements ............................................................................................. 8
6.0 Schedule of quantity .................................................................................................. 9
7.0 Fabrication ................................................................................................................. 9
8.0 Supplementary Requirement ................................................................................. 10
9.0 Workmanship, Finish and Appearance ................................................................ 10
10.0 Cleanliness ............................................................................................................... 10
11.0 Inspection ................................................................................................................. 11
12.0 Documentation......................................................................................................... 12
13.0 Identification ............................................................................................................ 13
14.0 Marking for Shipment ............................................................................................ 13
15.0 Packaging, Storage and Shipment ......................................................................... 13
16.0 Transportation......................................................................................................... 14
17.0 Delivery Schedule .................................................................................................... 14
18.0 Rights and Privileges............................................................................................... 14
19.0 Vendor Eligibility Criteria ..................................................................................... 15
20.0 Confidentiality clauses: - ........................................................................................ 15
Fabrication, Testing and Supply of Various Bellows (Page 3 of 20)
1.0 Scope
This specification covers the minimum requirements for the design, procurement, testing of raw
materials, fabrication, inspection, testing/examination, documentation, preparation for shipping,
and transportation of bellows expansion joints including all the end fittings like bellow flanges
bellow cover etc. with spares.
Design and fabrication of necessary attachments for external pressure testing of bellows is in
the scope of vendor.
This specification is complete along with the drawings mentioned in the subsequent paragraphs,
without these drawings, this specification is not complete in itself.
The offer should be for the complete setup; part offer will not be accepted. The Tenderer should
be responsible for the item/products designed and fabricated by the sub-contractor if any.
A) GENERAL REQUIREMENTS
The component under this specification shall be as per the drawings and design data sheet
mentioned in this specification.
There may be changes in the quantum of job within ±5%. Vendor should take in mind
while quoting.
The products shall conform, in all aspects, to high standards of engineering and
workmanship in a manner acceptable to the purchaser who will interpret the meaning of
the drawing and specification and shall have the right to reject any work or materials
which in his judgment are not in full accordance therewith.
For the purpose of bid preparation typical design drawings are enclosed with this
specification, which contain all design details. The vendor has to make the necessary
detail fabrication drawings.
In the event of any conflict between or within the various paragraphs of this specification
or in case of any doubt, the interpretation/decision as given by the purchaser shall be final.
Materials and standard parts which are not specifically designated herein and which are
necessary for the fulfillment of this specification, shall be of good commercial quality and
in accordance with good practice pertinent to the manufacture of austenitic stainless-steel
pressure vessel and shall have the approval of the purchaser.
If the fabrication, examination, inspection or testing is not in conformance to the
requirements of this specification, the component/parts will be rejected.
In the event of the component or any part thereof fails to meet the examination or test
requirements specified herein, the vendor shall notify the purchaser. The vendor shall
obtain written permission from purchaser before repair and subsequent use of any such
component or any part. If the repairs are likely to affect the results of examination and
tests or work previously completed, appropriate re-examination, re-inspection and re-
testing shall be conducted.
Fabrication, Testing and Supply of Various Bellows (Page 4 of 20)
B) ELIGIBILITY FOR PARTICIPATING IN THE BID
Only the reputed manufacturers engaged in fabrication of various bellows need to submit the
tender. Distributors, Dealers, Stockists, Traders, Agents etc., need not quote, their quotations
will not be accepted. The Vendor shall furnish here a list of similar works executed by him,
to whom a reference may be made by the purchaser in case he considers such a reference
necessary.
2.0 Applicable codes, Standards and Drawings.
2.1 Applicable Codes and Standard
a) Expansion Joint Manufacturers Association- Standard for Expansion Joint.
b) ASTM-A-240 “Specification for heat-resisting chromium and chromium-nickel stainless
steel plate, sheet, and strip for pressure vessel”
c) ASTM A-480, “Standard Specification for General Requirements for Flat-Roll Stainless
and Heat-Resisting Steel Plate, Sheet, and Strip”.
d) ASTM-A-182 “Specification for forged or rolled alloy steel pipe flanges, forged
fittings, and valves and parts for high-temperature service”
e) ANSI B-31.1 ASME code for pressure piping.
f) ASME Sec-IX For welding
g) ANSI B-16.5 For pipe Flanges and Fittings.
h) ANSI B-16.25 For butt welding ends.
i) ASTM A380 - Practice for Cleaning, Descaling and Passivating of Stainless Steel Parts,
Equipment and Systems
j) ASTM A967 - Specification for Chemical Passivation Treatments for Stainless Steel
Parts.
k) ASME Sec-II for Material
l) ASME Sec-VIII, Div-2 Rules for bellows design
m) ASME Sec-III NC for qualification of BT bellows.
Any apparent conflicts between the requirements given herein and the applicable ASME
specification shall be brought to the attention of purchaser for clarification.
2.2 List of Drawings
1. A3/HFRR/31210/3001/GA- Beam Tube Bellows
2. A3/HFRR/41108/3005/GA- Bellows and flanges HW-200
3.0 Introduction
The metallic bellows covers in this specifications are of various dimensions and applications.
These bellows are categorised into two subcategories as per their application.
1. Heavy Water penetration sealing Bellows.
2. Beam Tube Bellows
2.1 Heavy Water Penetration Sealing-
In heavy water penetration sealings two types of bellows are used. Bellows used shall
provide sealing as well as flexibility to the system. It absorbs initial static deflection as
well as thermal deflections.
Fabrication, Testing and Supply of Various Bellows (Page 5 of 20)
2.2 Beam Tube (BT) Bellows
There are different sizes of bellows required to be used in Beam Tubes. For present tender
250 NB diameter bellows is required. These will be used to absorb the deflection during
inadvertent conditions henceforth provide flexibility to the Beam Tubes.
This bellow is a special bellow called double bellow in which two bellows as per the
dimensions specified are fabricated and mounted in parallel as a one unit i.e. having
common flanges as shown in respective drawings.
4.0 Design
Design of the bellows will be in the scope of vendor. After placement of Purchase Order
vendor has to submit design report and calculations within 3 weeks for purchaser’s approval
before fabrication.
All the Bellow designs and qualification along with drawings shall be done by default as per
EJMA standard, special design requirement and codes for some particular bellows has been
mentioned in the respective section of this specification.
Sketch of the bellows are also attached. Dimensions are approximate dimensions. For
bellows parameters, table given in this section of this specification shall be referred by the
vendor not the sketch for design calculation.
4.1 Heavy Water Penetration Bellows
There are 3 kinds of bellows in Heavy water penetration sealing based on their dimensions
and named as type-200, type-150 and type-40. Bellows will be installed in vertical position.
Table-1: Design Parameters for HW penetration Sealing Bellows
Parameters Type -200 Type -150 Type -40
Design Code EJMA Standard
End Connections Thickness/Flange Rating 49 VS VS
Material SS-304L SS-304L SS-304L
Pressure (kgf/cm2)
Design 3 (Ext & Int) 3 (Ext & Int) 3(Ext & Int)
Operating 2 (Ext & Int) 2(Ext & Int) 2(Ext & Int)
Test 4.5 4.5 4.5
Temperature (0C)
Design 80 80 80
Operating 55 55 55
Installation 25 25 25
Media
Media Water Water Water
Flow Velocity Stagnant Stagnant Stagnant
Flow Direction NA NA NA
Movement
and Life
Cycle
Installation
Axial Extension 70 mm 70 mm 70 mm
Axial Compression 70 mm 70 mm 70 mm
Lateral ±4 mm ±4 mm ±4 mm
Angular < 10 < 10 < 10
Number of Cycle 15 15 15
Design
Axial Extension 10 mm 10 mm 10 mm
Axial Compression 10 mm 10 mm 10 mm
Lateral ± 4 mm ± 4 mm ± 4 mm
Angular < 10 < 10 < 10
Number of Cycle 1000 1000 1000
Fabrication, Testing and Supply of Various Bellows (Page 6 of 20)
Operating
Axial Extension 8 8 8
Axial Compression 8 8 8
Lateral ± 3 mm ± 3 mm ± 3 mm
Angular < 10 < 10 < 10
Number of Cycle 900 900 900
Materials
Bellows SS-304 L SS-304 L SS-304 L
Liner NA NA NA
Cover NA NA NA
Dimensions
Overall Length (mm) 350 350 350
Maximum OD (mm) 421 VS VS
Minimum ID (mm) 343 VS VS
Spring Rates Maximum axial Spring
Rate
<120 N/mm <120 N/mm <120 N/mm
Quality Assurance
Required
Bellows Long. Seam Weld UT & DPT UT & DPT UT & DPT
Bellows Attachment Weld UT & DPT UT & DPT UT & DPT
Piping UT UT UT
Raw Material Testing UT UT UT
Abb: VS- Vendor Scope (Subjected to Purchaser’s approval)
NA-Not Applicable
4.2 Beam Tube Bellows
Bellow required in Beam Tube which are categorised based on the pipe size as 250NB. It is
using the same concept of dual bellows as stated earlier.
1. Refer attached sketch for the configuration of bellow and assembly with the end fittings.
Dimensions can be modified as per the end fittings and assembly with the approval of the
purchaser. Tentative sketches have been provided for demonstration of assembly
arrangement.
2. Bellows will be installed in horizontal position.
3. ASME Sec-III clause NC-3649 shall comply while designing the BT bellows and shall be
indicated in report.
4. This is Dual bellow attachment connecting one side with the standard pipe and on the other
side with a nonstandard Flange. Two bellows considered to be attached in parallel,
therefore Spring Rate will be added to take the combined effect keeping same deflection.
5. Deformation in this category bellows is dominated due to seismic event, therefore all the
lateral direction movements shall be considered during the design and clearance between
two bellows shall be decided such that none of the two bellows shall touch each other in
any case. This shall be finalized after purchaser’s approval.
Fabrication, Testing and Supply of Various Bellows (Page 7 of 20)
Table 2 : Design Parameters for Dual Beam Tube Bellows
Parameters 250NB
Design Code
EJMA Standard for design
ASME Sec-III NC for
Acceptance Criteria
End Connections
Thickness/Flange
Rating
35 mm
Material SS-304L
Pressure (kgf/cm2)
(For Both bellows)
Design 2 (External & Internal)
Operating 1.5(External & Internal)
Test 3
Temperature (0C)
(For Both bellows)
Design 80
Operating 55
Installation 25
Media
Media Water
Flow Velocity Stagnant
Flow Direction NA
Movement
and Life
Cycle
(For Both
Bellows)
Installation
Axial Extension 15 mm
Axial Compression 15 mm
Lateral ±4 mm
Angular < 10
Number of Cycle 15
Design
Axial Extension 6 mm
Axial Compression 6 mm
Lateral ± 4 mm
Angular < 10
Number of Cycle 1000
Operating
Axial Extension 5 mm
Axial Compression 5 mm
Lateral ± 3 mm
Angular < 10
Number of Cycle 900
Materials
Bellows SS-304 L
Liner NA
Cover NA
Dimensions for both
lower and upper bellow
Lower
Overall Length (mm) VS
Maximum OD (mm) 325
Minimum ID (mm) 254
Spring Rates
(Combined)
Maximum axial
Spring Rate
<150 N/mm
Quality Assurance
Required
Bellows Long. Seam
Weld
UT & DPT
Bellows Attachment
Weld
UT & DPT
Piping -
Raw Material Testing UT
Note- For overall length : convolution length (Nq) for lower bellow shall be equal to or less than
upper bellow.
Fabrication, Testing and Supply of Various Bellows (Page 8 of 20)
Design of Flanges- Bellows flanges shall be manufactured as per attached drawings. However
minor modification in the bellow flanges can be accepted with the approval of purchaser,
provided bellow flange thickness and bolt circle diameter is not affected.
Bellows Flanges for HW penetration Sealing -
There are 3 kinds of bellows as stated earlier. Design of flanges for type-150 and type-40 are in
the vendor’s scope. Flanges for type-200 Bellows shall be fabricated as per the drawing attached.
Type-150 and type-40 top Flanges shall comply with the requirements given in table below and
bottom flanges shall be as per the drawings attached.
For Bellow Top Flange
Flange Inside Diameter Bellow ID -X (Depends upon weld type)
Pitch Circle Diameter Bellow cover outer dia+ 2.5x(Diameter of bolt) +3mm
Bolt Load 250N/mm x PCD provided
[PCD - Gasket load reaction dia or lip location] < 20mm
Flange OD PCD+1.5x Dia of bolt
Minimum bolt spacing 120mm
Bellows Flanges for BT bellows-
As beam tube bellows will be installed in horizontal position hence one side it will be attached to
flanges while other side it will directly be welded to the pipe.
Dimensions for flanges has been shown in attached drawing. Design of all the flanges is in the
scope of vendor subjected to approval of purchaser before fabrication.
4.3 General Design Requirement
1. Each step of manufacturing and testing must be adhered to the specific procedures outlined
herein to insure that the finished bellows meet the specification requirements. No deviation
from this specification or those stipulated herein will be permitted without prior permission
of the purchaser.
2. The purchaser reserves the right to make minor changes in the design specially with regard
to bellows and end fitting attachment prior to the approval of final fabrication drawings.
Such changes shall be considered within the original scope of the specified work and no
extra charges shall be levied for the same.
5.0 Material Requirements
All the materials designated in accordance with an ASTM specification shall be subjected to
tests for Chemical, Physical and other mandatory tests by the appropriate ASTM specification.
All material test results shall be approved by the purchaser or his representative before the
material is used for the manufacturing/fabrication process.
Only MTC is not acceptable. Each material shall be tested for UT, chemical, corrosion and
mechanical testing in presence of purchaser’s representative.
The materials of construction as indicated in this specification are the minimum acceptable. The
vendor may offer equivalent or better materials provided the purchaser approves each material.
Materials and standard parts which are not specifically described herein and which are
necessary for the fulfillment of this specification shall be of good quality and in accordance
with the best practice pertinent to the manufacture of bellow assemblies.
Fabrication, Testing and Supply of Various Bellows (Page 9 of 20)
All tests as called for in the specifications shall be arranged by the supplier/manufacturer. All
inspection and tests shall be conducted in the presence of the purchaser and/or his authorized
representatives as per the applicable code. The vendor prior to performing test shall intimate the
purchaser at least 2 days before the test. All the tests shall be done in Purchaser's authorized
Material Test Labs (NABL Approved).
If material fails to conform to all of the applicable requirements of this specification, it shall be
cause for rejection of the material. All the test results and the necessary test certificates shall be
submitted after the tests to the purchaser. The purchaser shall have the right to conduct any
additional inspection or testing he deems necessary.
Even though inspections are carried out by Purchaser or his representative, such inspection and
testing shall not however relieve the Vendor from the responsibility of furnishing material
conforming to the requirements of the specification, nor prejudice any claim, right or privilege
which purchaser may have because of the use of defective or unsatisfactory material.
All material procured by the vendor shall be virgin and free from any visible defects. Materials
and standard parts which are not specifically mentioned herein, and which are necessary for the
fabrication and assembly of the components shall be new and of good quality.
Bellows material and bellow cover material provided by the vendor shall conform to the
requirements of ASME Specification SA-240 Type 304L with the additional supplementary
requirements described in this specification. The stainless steel bellows material used shall be
hot rolled, annealed and pickled/passivated.
Bellow flange material provided by the vendor shall conform to the requirements of ASME
Specification ASTM-A-182 Type 304L.
6.0 Schedule of quantity
S.No. Bellow Type Quantity
1
Heavy Water Penetration
Sealing
Type-200 02 For Supply
02 For Testing
Type-150 03 For Supply
02 For Testing
Type-40 02 For Supply
02 For Testing
2 Dual BT Bellows
250NB 01 For Supply
02 For Testing
Note- The bellow for cycle testing will be randomly picked by Purchaser from each categories.
7.0 Fabrication
Expansion joints shall be designed and fabricated in accordance with requirements set forth
in the ordering data and EJMA standard/ASME Sec-III NC.
The SS bellows shall be prevented from coming in contact with carbon steel contamination
of any kind.
Circumferential welds in bellows are not permitted under any circumstance.
All fabrication details not covered by the referenced codes and standards shall be taken
from the appropriate ANSI standard. If no standard applies, accepted industrial practice
shall govern in concurrence with purchaser.
Fabrication, Testing and Supply of Various Bellows (Page 10 of 20)
Bellows shall be of tested and proven convolution geometry.
Fabrication tolerances for bellows shall be taken from EJMA standard Sec-D-2.9.
7.1 WELDING
The vendor shall submit weld procedures to the purchaser for review and approval prior to
fabrication.
All welding if required by the purchase order, shall be performed in accordance with the
ASME Boiler & Pressure Vessel Code, Section IX, Welding and Brazing Qualification,
latest edition.
All welders shall be qualified to ASME Section IX Procedures.
All weld repairs shall be performed in accordance with procedures approved by the
purchaser.
Welding shall be done in an area that is separate from contaminated processes (grinding,
blasting, painting, etc.).
7.2 Heat Treatment
The bellows assemblies shall be subjected to solution heat treatment. The bellows
assemblies shall be heated to 1050 0C and soaking period at 1050 0C shall be an hour.
After soaking It shall be quenched by water. Bellow flanges of the SS parts shall also be
used in solution heat treated condition.
8.0 Supplementary Requirement
a) Dimensional tolerances on completed expansion joint assemblies shall be in accordance
with Sec-D2.9 of EJMA standard.
9.0 Workmanship, Finish and Appearance
a) The quality of workmanship shall be such as to produce a product that is in accordance
with the requirements of this specification and ensures the proper functioning of all parts of
the unit.
b) The bellows shall be manufactured and carefully handled to prevent surface flaws or deep
scratches from being generated. The surface condition of the completed joint assembly
shall be free from injurious surface discontinuities and any contaminants that would affect
the operation of the assembly.
c) On completion of fabrication, and before shipment, the manufacturer shall clean the inside
and outside of the completed assembly of all loose scale, grease, dirt, sand, rust, weld
spatter, cutting chips, and any other foreign matter by any suitable means. The inside of the
assembly shall then be inspected for cleanliness. All openings where practicable shall be
suitably closed to prevent the entrance of foreign matter after cleaning and during
shipment. The use of chlorinated solvents is prohibited.
10.0 Cleanliness
Potential hydrocarbon contamination shall be prevented. Also, the material shall be wrapped
and covered at all times the material is not being processed to minimize possible exposure to
contaminants.
No iron, carbon steel or other contaminants (such as grease, oil or hydrocarbons) are to come
in contact with the SS materials. Machining fluids shall be water soluble and free of oil and
sulfur.
Bellows shall be steam cleaned with detergent (Inpro-clean 1300) and dried (air dried) prior
Fabrication, Testing and Supply of Various Bellows (Page 11 of 20)
to wrapping. The bellows shall be free of all surface contaminants, forming lubricants, free
from residue from forming rolls, tools etc. and standing water. The vendor shall submit all
cleaning procedures and methods for purchaser approval.
11.0 Inspection
11.1 General
The vendor shall be responsible to perform all examination and testing in accordance with the
requirements of this specification.
Unless otherwise stated, all inspection / test shall be conducted in the presence of the
purchaser and/or his authorized representatives.
11.2 Inspection
1. The vendor shall carry out all the inspection and testing as mentioned in the specification.
The quality surveillance shall be carried out by purchaser or his representative.
2. The vendor shall supply a step by step manufacturing plan along with a Quality Assurance
Plan (QAP) with check / inspection stages during manufacture of the components
indicating hold points of the inspecting agencies for purchaser’s approval. The plans shall
be submitted to the purchaser before commencing the fabrication work for obtaining the
approval.
3. The purchaser or his representative shall be permitted to witness all manufacturing and
testing operations herein required. Upon request, the representative shall be provided with
records of materials, tests and inspections which were performed in the representative’s
absence.
4. Responsibility of Test- Unless otherwise specified, all the test shall be performed by the
vendor. Equipment and test apparatus used by the vendor shall be properly maintained and
operated accordingly to the manufacturer’s instructions. It is the vendor’s responsibility to
provide experienced and qualified personnel to operate the equipment and perform the
tests.
5. The scope of inspection shall consist of but shall not be limited to the following.
- Material inspection
- Visual inspection of the weld/weld integrity/weld quality and UT.
- Assembly and functionality Inspection
The record of every stage inspection shall be prepared and kept by vendor which will be
cross checked by Purchaser.
11.3 Testing and acceptance criteria for bellows
The vendor prior to performing test shall submit all the test procedures for purchaser’s
approval. All the test results and the necessary test certificates shall be submitted after the
tests for the purchaser’s approval.
a) Die Penetrant test shall be conducted on the formed bellow machined surfaces and all
weld joints as per ASME Sec V, article 6 and acceptance criteria is based on ASME Sec
VIII, Div -1.
b) Helium Leak Testing- shall be conducted on the SS bellow assembly as per ASME Sec
V, article 10. Leak testing shall be performed on the finished bellows complete with end
fittings and attachments. Following welding and inspection, completed bellows shall be
leak tested using a mass spectrometer helium leak detector. Unwrapping, handling and
Fabrication, Testing and Supply of Various Bellows (Page 12 of 20)
rewrapping of the bellows during leak testing shall also follow the previous clean
handling restrictions; periodic glove changes, no contamination transfer, etc. Helium leak
testing shall be conducted as per ASTM E498 and leak rate must be less than 1x 10-9
Atm.cc/sec.
c) Spring rate testing shall be conducted as per EJMA standard for testing of metallic
bellows.
d) Radiographic examination for soundness of welds. This shall be carried out as per EJMA
D-3.1.1 and acceptance criteria shall be as per EJMA D-3.1.1.
e) Hydro-static pressure Testing-This shall be conducted as per Sec D-3.1.6 of the EJMA
standards. It shall be performed on the finished bellows complete with end fittings and
attachments.
The expansion joint shall be vented before hydro-test. Test pressure shall be held for
minimum 10 min. Potable water is acceptable for hydro testing.
External pressure testing is required in the external pressure specified bellows.
Necessary attachments and compatible arrangements for external pressure testing
shall be designed by vendor. Pressure testing arrangement will subject to purchaser’s
approval.
f) Cycle Life Testing- Cycle testing is a verification of the ability of a bellows to withstand
the required number of cycles. The test shall be performed under pressure and assembly
need to be cycled in axial movement only. Qualifying axial movement is the axial
movement and equivalent axial movement caused by lateral deflection and angular
rotation which shall be computed in accordance with the EJMA standard and shall be
algebraically added.
Cycle testing shall be done on each size bellows. Bellow for cycle testing shall be picked
randomly for each size by Purchaser.
If bellow assemblies fail to conform to all of the applicable requirements of this
specification, it shall be cause for rejection of the bellow. All the test results and the
necessary test certificates shall be submitted after the tests to the purchaser. The purchaser
shall have the right to conduct any additional inspection or testing he deems necessary.
Repair- Welding is not permitted to repair the formed bellows.
12.0 Documentation
The Certified Material Test Reports (CMTRs) for vendor purchased material and other test
reports, Fabrication drawings, NDT reports, hydro test and leak testing report shall be provided
to the purchaser with the shipment of the bellows and shall be available for review during
inspection visits prior to shipment.
All the documents shall be submitted in bound book. Also soft copy, pdfs, AutoCAD drawings
etc. shall be a part of documentation. Soft copies shall be provided in CD.
List of documents to be submitted after placement of PO:
QAP
Hydro Test Procedure
Fabrication, Testing and Supply of Various Bellows (Page 13 of 20)
NDE Procedures (UT, RT, LPT)
He Leak test procedure
Packaging and Transportation procedure
Nitrogen filling procedure
Heat Treatment Procedure
Radiography Procedure
13.0 Identification
Identification of the bellows material shall be maintained and documented through all
manufacturing processes.
If material identity of the bellows or end fitting is lost, they shall be requalified by making all
tests that were required for the material or as indicated in this specification.
All bellows and bellows assemblies shall be marked with the purchaser’s part number.
14.0 Marking for Shipment
All exterior shipping containers shall be adequately and properly marked for identification. All
packages shall include the following minimum marking,
a) Destination address as communicated.
b) Purchase Order No. and Date.
c) Dimensions.
d) Any handling and unpacking instructions, if considered necessary.
e) All marking shall be made with uniform block letters using water proof paint.
15.0 Packaging, Storage and Shipment
Temporary shipping supports, as per standard procedure, shall be provided. It shall be as per
Sec-D-2.8 of EJMA standard.
All material and parts shall be covered suitability after each processing operation has been
completed to minimize contamination. The material shall remain packaged and covered until it
is necessary to remove the covering and packaging material for further processing.
After final cleaning, bellows shall be packaged for shipping. All bellows shall be wrapped in
polyethylene and placed in closed wooden box with proper supports to prevent shipping
damage.
All the Bellows shall be shipped with dry nitrogen filled at 1 bar pressure.
The necessary attachments along with pressure gauge shall be provided for bellows mentioned
in para 3.1 & 3.2 only. For filling of N2, two bellows can be bolted back to back.
Package and transport procedure shall be subjected to purchaser’s approval.
Fabrication, Testing and Supply of Various Bellows (Page 14 of 20)
16.0 Transportation
Transportation of the bellow assemblies is in the scope of the vendor. Transportation shall be
done as per the standard procedure. However, any element if found damaged on receipt at
purchaser’s end, the same shall be replaced by the supplier, free of cost.
No material shall be dispatched without prior written consent of Purchaser or his
representative.
Vendor shall intimate at least fifteen (15) days in advance to the consignee as well as to the
concerned Engineer at site, the probable date when the bellows assemblies are to be ready for
dispatch. A packing list also shall be sent along with this.
17.0 Delivery Schedule
The delivery shall be within Four (4) month after the placement of the purchase order. In case
of nonconformance of the clause liquidity damage (LD) shall be applicable as per the rule.
18.0 Rights and Privileges
Purchaser reserves the right to inspect any machinery or material or equipment furnished or
used by Vendor under the contract and to reject any, which is found defective in workmanship
or design, or otherwise unsuitable for the use and purpose intended, or which is not in
accordance with the intent of the contract.
Should Purchaser waive the right to inspect any equipment, such waiver shall not relieve
Vendor in any way of his obligations under the contract.
Purchaser or Purchaser’s representatives shall be permitted free access to Vendor’s or his
sub- vendor’s shop at all working hours for the purpose of inspecting work at all stages of
progress.
Purchaser’s representative shall be provided full assistance in the form of necessary tools,
instruments, equipment and qualified operators to facilitate inspection.
Purchaser reserves the right to call for certificates of origin, and test certificates for all raw
material and equipment at any stage of manufacture.
In the event of Purchaser’s inspection revealing poor quality of goods, Purchaser shall be at
liberty to specify additional inspection procedures, if required, to ascertain Vendor’s
compliance with the Equipment Specifications.
The purchaser shall have the right to conduct any additional examination, inspection or testing
he deems necessary. At the request of the purchaser the vendor shall re-examine, re-inspect, or
re-test any component of the bellows assemblies. Defects if revealed during such inspection /
test, which do not meet the requirements of this specification shall be cause for rejection of the
component, or alternatively for repair and subsequent re-examination, re-inspection and re-
testing. Re-examination, re-inspection and re-testing both before and after repair shall be at
the expense of the vendor. If no unacceptable defects are revealed, re-examination, re-
inspection and re-testing requested by the purchaser shall be at purchaser’s expense.
Even though inspection is carried out by Purchaser or his representative, such inspection shall
not however relieve Vendor of the responsibility for furnishing equipment conforming to the
requirements of the contract, nor prejudice any claim, right or privilege which purchaser may
have because of the use of defective or unsatisfactory equipment.
Vendor shall keep a set of latest prints of the approved drawings available, on the shop floor
for reference of Purchaser’s representative during the inspection.
Fabrication, Testing and Supply of Various Bellows (Page 15 of 20)
19.0 Vendor Eligibility Criteria
After bid opening the purchaser’s representative will visit the bidders to evaluate their
capabilities. Bidder should have following facilities as a minimum to be eligible for
manufacturing of the products under this tender.
The bidder should have the required machines and capacity to manufacture of at least three
fourth of the components in house.
(i) Basic machining facilities like turning centre, Machining Centres, Welding Machines
with qualified welders etc.
(ii) Machines required for bellow forming.
(iii) Component inspection facilities high quality inspection tools, go/no-go gauges, etc.
(iv) Clean room for component storing, handling and assembly.
(v) Testing Facilities: Cycle Testing, UT, DPT, He leak test and Hydro Testing.
(vi) Experience of fabrication of bellows supplied for nuclear application (DAE or other
equivalent purchaser). At least one supply for similar application is mandatary.
Bidder should explain their understanding of the critical products and assemblies identified
in this document during evaluation visit. They should explain the execution team
composition and project mentoring method.
Following will be the scoring criteria for evaluating the Bidder:
Sr. No. Criteria Score
1. Experience in executing similar job in the recent past 30
2. Quality Audit (Carried out during technical evaluation) 10
3. Availability of in-house Machineries. 25
4. Availability of Inspection Tools and facilities 10
5. Availability of Proper storage space 6
6. Cleanliness of the shop and surrounding 6
7. Safety policy and measures 6
8. Material Handling facilities 7
A minimum score of 70 marks will qualify the bidder for technical eligibility.
20.0 Confidentiality clauses: -
(i) Confidentiality: No party shall disclose any information to any third party concerning
the matter under this contract generally. In particular, any information identified as
‘proprietary’ in nature by disclosing party shall be kept strictly confidential by the
receiving party and shall not be disclosed to any third party without the prior written
consent of the original disclosing party. This clause shall apply to the sub-contractors,
consultants, advisers, or the employees engaged by a party with equal force.
(ii) “Restricted Information” categories under section 18 of the Atomic Energy Act 1962
and “Official Secrets” under Section 5 of the Official Secrets Act, 1923: Any
contravention of the above mentioned provisions by any contractor, sub-contractor,
consultant, adviser or the employees of a contractor will invite penal consequences under
the aforesaid legislation.
Fabrication, Testing and Supply of Various Bellows (Page 16 of 20)
(iii) Prohibition against use of purchaser’s name without permission for publicity
purposes: The contractor or sub-contractor consultant, adviser or the employees engaged
by the contractor shall not use purchaser’s name for any publicity purpose through any
public media (like press, radio, T.V. or Internet) without the prior written approval of
purchaser.
Fabrication, Testing and Supply of Various Bellows (Page 17 of 20)
ANNEXURE-I
Vendor Details
Sl. No. PARTICULARS REMARKS
I Name of the firm
II Postal address
III Contact with STD code
IV Fax with STD code
V Name of Contact person
VI Mobile No.
VII e-mail ID
1 Financial Turn Over Certified by CA of Last 3
Years in Rs.
2018- 19
2017 - 18
2016 - 17
2 Profit & Loss Statement Certified by CA in Rs.
2018-19
2017-18
2016 - 17
2015 - 16
2014 - 15
6 Certificates:
i) Registration Certificate if Any, ATTACH COPY SEPARATELY
ii) Certificates of Work Experience /Performance
certificates
ATTACH COPY SEPARATELY
iii) Certificates of Registration for GST ATTACH COPY SEPARATELY
iv) TIN Registration Certificates ATTACH COPY SEPARATELY
v) PAN (Permanent Account Number) Registration ATTACH COPY SEPARATELY
Fabrication, Testing and Supply of Various Bellows (Page 18 of 20)
ANNEXURE-II
STATEMENT OF MEN POWER
Sl. No. PARTICULARS REMARKS
1 Manpower Deployment: Proposed by Tenderer for Deployment for
completion of work. (Nos)
a Welders
b Electrician
c Labours
d Machine Operator
e QA Technician with certification
2 Technical Staff Deployment:
a Graduate Engineers
b Diploma Engineers
c Supervisors
3 Machinery Deployment: Nos of machines (available/not available)
a Heating Furnaces
b Heat treatment Furnaces
c Bellows forming machines
d EOT Cranes (capacity/Hook
height)
e CNC/conventional Lathe M/c with
specification
f CNC/conventional Milling M/c
with specification
g Tube expansion machines
h Welding Machines
i Measuring Instruments
j Tool Box
k Profile Measuring Facility
l Boring/drilling Machine
m Material Testing Facilities
n NDT Facilities
Any Other Machinery/Equipment proposed by
Tenderer required for specialised works for
complition of work order:
Note : 1) It is noted that the above deployment is minimum. After detailed programming and actual
condition at site, additional deployment shall be done as necessary for completion of the work
within the stipulated time period.
2) It is mandatory to fill up ANNEXURE - II by the tenderer. Non-compliance of the same, tender
may be rejected.
Fabrication, Testing and Supply of Various Bellows (Page 19 of 20)
Annexure-III
Details of All the works of Similar Class Completed During last 5 years
Sl.
No.
Name of
work/
project
and
location
Owner or
sponsoring
organisation
Cost of
work in
Lakhs
Rupees
Date of
commencement
as per contract
Stipulated
date of
completion
Actual
date of
completion
Litigation /
arbitration
cases pending
/ in progress
with details
(indicate
gross amount
claimed and
amount
awarded by
the
Arbitrator)
Name and
address/
telephone
number of
officer to whom
reference may be
made
Remarks
1
2
Similar Works means: “Fabrication and Supply of Various Bellows”
Fabrication, Testing and Supply of Various Bellows (Page 20 of 20)
Annexure-IV
Projects Under Execution or Awarded
Sl.
No.
Name of
work/
project and
location
Owner or
sponsoring
organisation
Cost of
work in
Lakhs
Rupees
Date of
commencement
as per contract
Stipulated
date of
completion
Up to date
percentage
progress
of work
Slow progress
if any and
reasons thereof
Name and
address /
telephone
number of
officer to
whom
reference
may be
made
Remarks
1
2
3