W9127819R0060_RFP_Solicitation_with_attachments.pdf
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- Refurbish Turbine Guide Bearing Federal contract opportunity
- Solicitation number
- W9127819R0060
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Solicitation W9127819R0060
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| W9127819R0060_RFP_Drawing_No._1123-OD-1_Allatoona_TGB_Refurbish.pdf |
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SEE ADDENDUM
(No Collect Calls)
W9127819R0060 01-May-2019
b. TELEPHONE NUMBER
251-694-3735
8. OFFER DUE DATE/LOCAL TIME
10:00 AM 23 May 2019
5. SOLICITATION NUMBER 6. SOLICITATION ISSUE DATE
AUTHORIZED FOR LOCAL REPRODUCTION
PREVIOUS EDITION IS NOT USABLE
STANDARD FORM 1449 (REV. 2/2012)
Prescribed by GSA – FAR (48 CFR) 53.212
(TYPE OR PRINT)
(SIGNATURE OF CONTRACTING OFFICER)
ADDENDA ARE
26. TOTAL AWARD AMOUNT (For Gov t. Use Only )
23.
CODE 10. THIS ACQUISITION IS
SUCH ADDRESS IN OFFER
17b. CHECK IF REMITTANCE IS DIFFERENT AND PUT
BELOW IS CHECKED
TELEPHONE NO.
W912789. ISSUED BY
18b. SUBMIT INVOICES TO ADDRESS SHOWN IN BLOCK 18a. UNLESS BLOCK
7. FOR SOLICITATION
INFORMATION CALL:
a. NAME
LAURA R KNIGHT
2. CONTRACT NO. 3. AWARD/EFFECTIVE DATE 4. ORDER NUMBER
(TYPE OR PRINT)
30b. NAME AND TITLE OF SIGNER 30c. DATE SIGNED 31b. NAME OF CONTRACTING OFFICER
30a. SIGNATURE OF OFFEROR/CONTRACTOR 31a.UNITED STATES OF AMERICA
0 27a. SOLICITATION INCORPORATES BY REFERENCE FAR 52.212-1. 52.212-4. FAR 52.212-3. 52.212-5 ARE ATTACHED.
25. ACCOUNTING AND APPROPRIATION DATA
1. REQUISITION NUMBER
20.
ADDITIONAL SHEETS SUBJECT TO THE TERMS AND CONDITIONS SPECIFIED.
OFFEROR TO COMPLETE BLOCKS 12, 17, 23, 24, AND 30
SOLICITATION/CONTRACT/ORDER FOR COMMERCIAL ITEMS
ARE NOT ATTACHED
27b. CONTRACT/PURCHASE ORDER INCORPORATES BY REFERENCE FAR 52.212-4. FAR 52.212-5 IS ATTACHED. ADDENDA ARE ARE NOT ATTACHED
(BLOCK 5), INCLUDING ANY ADDITIONS OR CHANGES WHICH ARE
SET FORTH HEREIN, IS ACCEPTED AS TO ITEMS:
. YOUR OFFER ON SOLICITATION
28. CONTRACTOR IS REQUIRED TO SIGN THIS DOCUMENT AND RETURN
% FOR:SET ASIDE:UNRESTRICTED OR X
SMALL BUSINESSX
17a.CONTRACTOR/ CODE FACILITY
OFFEROR CODE
ENDIST MOBILE CONTRACTING DIVISION
109 ST JOSEPH ST
MOBILE AL 36602
18a. PAYMENT WILL BE MADE BY CODE
RATED ORDER UNDER
DPAS (15 CFR 700)
13a. THIS CONTRACT IS A
13b. RATING
CODE15. DELIVER TO CODE 964304 16. ADMINISTERED BY
12. DISCOUNT TERMS11. DELIVERY FOR FOB DESTINA-
TION UNLESS BLOCK IS
MARKED
SEE SCHEDULE
14. METHOD OF SOLICITATION
RFQ IFB RFPX
ALLATOONA POWERHOUSE
TIM ARNOLD
585 ALLATOONA DAM ROAD
CARTERSVILLE GA 30120
TEL: 770-235-5320 FAX:
FAX:
TEL: SERVICE-DISABLED
VETERAN-OWNED
SMALL BUSINESS
8(A)
HUBZONE SMALL
BUSINESS
SIZE STANDARD:
NAICS:
332710
X
OFFER DATED
29. AWARD OF CONTRACT: REF.
DELIVER ALL ITEMS SET FORTH OR OTHERWISE IDENTIFIED ABOVE AND ON ANY
COPIES TO ISSUING OFFICE. CONTRACTOR AGREES TO FURNISH AND
EMAIL:
TEL:
31c. DATE SIGNED
SEE SCHEDULE
SCHEDULE OF SUPPLIES/ SERVICESITEM NO. QUANTITY UNIT UNIT PRICE AMOUNT
24.22.21.19.
WOMEN-OWNED SMALL BUSINESS (WOSB)
ELIGIBLE UNDER THE WOMEN-OWNED
SMALL BUSINESS PROGRAM
EDWOSB
32g. E-MAIL OF AUTHORIZED GOVERNMENT REPRESENTATIVE
SOLICITATION/CONTRACT/ORDER FOR COMMERCIAL ITEMS
(CONTINUED)
PAGE 2 OF36
ACCEPTED, AND CONFORMS TO THE CONTRACT, EXCEPT AS NOTED: ______________________________________________________
32a. QUANTITY IN COLUMN 21 HAS BEEN
RECEIVED INSPECTED
32b. SIGNATURE OF AUTHORIZED GOVERNMENT
REPRESENTATIVE
32c. DATE 32d. PRINTED NAME AND TITLE OF AUTHORIZED GOVERNMENT
REPRESENTATIVE
32e. MAILING ADDRESS OF AUTHORIZED GOVERNMENT REPRESENTATIVE 32f . TELEPHONE NUMBER OF AUTHORIZED GOVERNMENT REPRESENTATIVE
37. CHECK NUMBER
FINALPARTIALCOMPLETE
36. PAYMENT35. AMOUNT VERIFIED
CORRECT FOR
34. VOUCHER NUMBER
FINAL
33. SHIP NUMBER
PARTIAL
38. S/R ACCOUNT NUMBER 39. S/R VOUCHER NUMBER 40. PAID BY
41a. I CERTIFY THIS ACCOUNT IS CORRECT AND PROPER FOR PAYMENT
41b. SIGNATURE AND TITLE OF CERTIFYING OFFICER 41c. DATE
42a. RECEIVED BY (Print)
42b. RECEIVED AT (Location)
42c. DATE REC'D (YY/MM/DD) 42d. TOTAL CONTAINERS
STANDARD FORM 1449 (REV. 2/2012) BACK
Prescribed by GSA – FAR (48 CFR) 53.212
AUTHORIZED FOR LOCAL REPRODUCTION
PREVIOUS EDITION IS NOT USABLE
SEE SCHEDULE
20.
SCHEDULE OF SUPPLIES/ SERVICES
21.
QUANTITY UNIT
22. 23.
UNIT PRICE
24.
AMOUNT
19.
ITEM NO.
Section SF 1449 - CONTINUATION SHEET
ITEM NO SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT
0001 1 Job Refurbishment of One (1) TGB
FFP
Refurbishment of One (1) Turbine Guide Bearing SECTION 48 13 13.07 26, Paragraph 3.3 FOB: Destination
NET AMT
0002 1 Job Packaging and Shipment
FFP
Packaging and Shipment of One (1) Turbine Guide Bearing SECTION 48 13 13.07 26, Paragraph 3.2
0003 1 Job OPTION Refurbishment of One (1) Second TGB
FFP
Refurbishment of One (1) Second Turbine Guide Bearing SECTION 48 13 13.07 26, Paragraph 3.3
0004 1 Job OPTION Packaging and Shipment
FFP
Packaging and Shipment of One (1) Second Turbine Guide Bearing SECTION 48 13 13.07 26, Paragraph 1.6
0005 1 Job OPTION Provide One (1) Babbitt Bond Ref Block
FFP
Provide One (1) Babbitt Bond Reference Block for Ultrasonic Testing SECTION 48 13 13.07 26, Paragraph 2.3
INSPECTION AND ACCEPTANCE TERMS
Supplies/services will be inspected/accepted at:
CLIN INSPECT AT INSPECT BY ACCEPT AT ACCEPT BY
0001 N/A N/A N/A Government 0002 N/A N/A N/A Government 0003 N/A N/A N/A Government 0004 N/A N/A N/A Government 0005 N/A N/A N/A Government
DELIVERY INFORMATION
CLIN DELIVERY DATE QUANTITY SHIP TO ADDRESS DODAAC /
CAGE
0001 POP 03-JUN-2019 TO
02-JUN-2020
N/A ALLATOONA POWERHOUSE
TIM ARNOLD
585 ALLATOONA DAM ROAD
CARTERSVILLE GA 30120
770-235-5320
964304
0002 POP 03-JUN-2019 TO
02-JUN-2020
N/A (SAME AS PREVIOUS LOCATION)
0003 POP 03-JUN-2019 TO
N/A (SAME AS PREVIOUS LOCATION)
0004 POP 03-JUN-2019 TO
N/A (SAME AS PREVIOUS LOCATION)
0005 POP 03-JUN-2019 TO
N/A (SAME AS PREVIOUS LOCATION)
SOW
STATEMENT OF WORK
PART 1 GENERAL
1.1 DESCRIPTION OF WORK
The scope of work for this Contract consists of the Contractor furnishing all supervision, engineering, labor, materials, and equipment to perform the following work in strict accordance with the detailed requirements of this Contract:
a. Refurbish one Turbine Guide Bearing.
b. Provide required contract documentation.
c. Ship the bearing from and to Allatoona powerhouse. (Includes the provision of a new shipping crate)
d. (Optional) Refurbish a second Turbine Guide Bearing.
e. (Optional) Ship a second bearing from and to Allatoona powerhouse. (Includes the provision of a new shipping crate)
f. (Optional) Provide a Babbitt Bond Reference Block for Ultrasonic Testing. (Includes a wooden box for long term storage and a label)
1.2 SPECIFICATIONS
Technical specifications listed below cover the detailed requirements for the equipment and services listed in the Price Schedule:
SECTION TITLE
01 11 10 STATEMENT OF WORK
01 22 00 MEASUREMENT AND PAYMENT
48 13 13.07 26 GUIDE BEARING INSPECTION & REFURBISHMENT
PART
PRODUCTS - NOT USED
PART
EXECUTION - NOT USED
-- End of Section --
MEASUREMENT AND PAYMENT
1.1 GENERAL INFORMATION
In each instance, the contract price for an item will constitute full compensation as herein specified, as shown, or as otherwise approved. The contract price and payment will also constitute full compensation for all work incidental to completion of the item, unless such work is otherwise specifically mentioned for separate payment under another item. In the event any work is required by the specification sections or by the drawings and not specifically mentioned in the measurement and payment paragraphs, separate or direct payment will not be made, and all costs thereof are incidental to, and included in, the contract prices and payment for all items listed in the bid schedule.
1.2 MEASUREMENT
1.2.1 Job Measurement Items
Measurement items for the work of this contract for which contract job payments will be made are listed in the bid schedule and described below.
All costs for items of work, which are not specifically mentioned to be included in a particular job or unit price EA measurement item, shall be included in the listed job item most closely associated with the work involved. The job price for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for which separate payment is not otherwise provided.
1.2.2 Unit Price Measurement Items
Measurement items for the work of this contract on which the contract unit price payments will be made are listed in the bid schedule and described below. The unit price for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.
1.3 PAYMENT
Payment for all work specified, shown or incidental to complete the work will be made as follows:
BASE BID ITEMS 0001
Item No. 0001 Refurbishment of One (1) Turbine Guide Bearing
Payment for the Refurbishment of One (1) Turbine Guide Bearing will be made on a job basis under Item No. 0001. Payment shall include labor, material, documentation, and equipment required to refurbish the turbine guide bearing, provide mounting studs and dowels, ream holes, and to refurbish the the OD fit(s) on the turbine guide bearing in accordance with SECTION 48 13 13.07 26.
Item No. 0002 Packaging and Shipment of One (1) Turbine Guide Bearing.
Payment for the Long-Term Packaging and Shipment of One (1) Turbine Guide Bearing will be made on a job basis under Item No. 0002. Payment shall include labor, material, and equipment required to ship the turbine guide bearing in accordance with SECTION 48 13 13.07 26.
Item No. 0003 (Optional) Refurbishment of One (1) Turbine Guide Bearing
Payment for the Refurbishment of One (1) Turbine Guide Bearing will be made on a job basis under Item No. 0003. Payment shall include labor, material, documentation, and equipment required to refurbish the turbine guide bearing, provide mounting studs and dowels, ream holes, and to refurbish the the OD fit(s) on the turbine guide bearing in
Item No. 0004 (Optional) Packaging and Shipment of One (1) Turbine Guide Bearing.
Payment for the Long-Term Packaging and Shipment of One 1) Turbine Guide Bearing will be made on a job basis under Item No. 0004. Payment shall include labor, material, and equipment required to ship the turbine guide bearing in accordance with SECTION 48 13 13.07 26.
Item No. 0005 (Optional) Provide One (1) Babbitt Bond Reference Block for Ultrasonic Testing
Payment for One (1) UT Babbitt Bond Reference Block will be made on a job basis under Item No. 0005. Payment shall include labor, material, documentation, and equipment required to refurbish the Babbitt Bond Reference Block, including wooden block for long term storage in
PART 2 PRODUCTS (Not Applicable) PART 3 EXECUTION (Not Applicable)
GUIDE BEARING INSPECTION & REFURBISHMENT
1/22/19
1.1 GENERAL INFORMATION
1.1.1 Description of Work
This SECTION governs the offsite refurbishment of one (1) 33 inch, cylindrical fits, turbine guide bearing for Allatoona Powerhouse's Unit 2. The turbine guide bearing is located at Allatoona Powerhouse.
Optional work includes a second turbine guide bearing and a UT babbitt bond reference block.
1.1.2 Description of Guide Bearings
The turbine guide bearings are a cylindrical, shell type, see S. Morgan Smith Drawing No. 1123-OD-1.
Unless otherwise noted, dimensions, fits and estimated weights are based on original design drawings, design criteria and/or calculations. The Government does not warrant or guarantee that these values are accurate.
1.2 REFERENCES
The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.
ASME INTERNATIONAL (ASME)
ASME BPVC SEC V (2015) Boiler and Pressure Vessel Code;
Section V, Nondestructive Examination
ASTM INTERNATIONAL (ASTM)
ASTM B 23 (2014) Standard Specification for White Metal Bearing Alloys (Known Commercially as "Babbitt Metal")
ASTM E 114 (2015) Standard Practice for Ultrasonic
Pulse-Echo Straight-Beam Examination by the Contact Method
ASTM E 165 (2012) Standard Test Method for Liquid
Penetrant Examination
AMERICAN SOCIETY FOR NONDESTRUCTIVE TESTING (ASNT)
ASNT-TC-1A (2016) Personnel Qualification and
Certification in Nondestructive Testing
U.S. DEPARTMENT OF DEFENSE (DOD)
MIL-DTL-24441 (2009; Rev D) Paint, Epoxy-Polyamide, General Specification for
SOCIETY FOR PROTECTIVE COATINGS (SSPC)
SSPC SP 5/NACE No. 1 (2007) White Metal Blast Cleaning
1.3 SUBMITTALS
Government approval is required for submittals with a "G" designation;
submittals having an "I" designation are for information only. Designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. Submit in accordance with SECTION
01 33 00 SUBMITTAL PROCEDURES:
SD-01 Preconstruction Submittals
Schedule For Turbine Bearing Refurbishment; G, HDC Submit 10 calendar days in advance of refurbishment, paragraph, "TURBINE GUIDE BEARING REFURBISHMENT," paragraph 3.3.1.
SD-02 Shop Drawings
Dowel Drawing; G, HDC Submit 10 calendar days prior to commencing fabrication, Page 2 paragraph, "Turbine Bearing Split Flange Face and OD Fit(s) Refurbishment," paragraph 3.3.3.
SD-03 Product Data
Chemical Analysis of Babbitt and Tin; I, HDC
Submit 7 calendar days prior to tinning," Paragraph "Babbitting Materials," paragraph 2.1.
SD-04 Samples
Samples of Materials; G, HDC
Submit within 10 days of request, Paragraph "Materials and Workmanship, paragraph 2.2".
SD-06 Test Reports
Turbine Guide Bearing As-Received Report; G, HDC
Submit Turbine Guide Bearing As-Received Inspection Report 10 calendar days prior to commencing work, paragraph, "General Turbine Guide Bearing Refurbishment Requirements," paragraph 3.3.1.
Turbine Guide Bearing Finished Inspection Report; G, HDC Submit 7 calendar days following inspections and prior to shipment, Paragraph "General Turbine Guide Bearing Refurbishment Requirements," paragraph 3.3.4.
SD-07 Certificates
Notice of Turbine Bearing Finished Inspection; I, HDC Submit 10 calendar days in advance of inspection," Paragraph "Inspection of Finished Turbine Guide Bearing and Final Report," paragraph 3.3.4.
NDT Personnel/Laboratory Qualifications; I, HDC
Submit 10 calendar days prior to performing any NDT, Paragraph "Examination of the Babbitt Bonding," paragraph 3.5.2.1.
SD-08 Manufacturer's Instructions
Turbine Guide Bearing Refurbishment Procedure; G, HDC Submit 14 calendar days in advance of repairs, paragraph, "TURBINE GUIDE BEARING REFURBISHMENT," paragraph 3.3.3.
1.4 FINAL INSPECTION AND ACCEPTANCE
For refurbished bearings, final inspection and acceptance for full compliance with the Specifications will be made by the Government upon delivery to the project. Any materials or workmanship not complying with the provisions of these specifications will be cause for rejection.
Corrections shall be made at the expense of the Contractor, and are subject to approval. Tests may be repeated at the project site to ensure that materials and workmanship conform to contract requirements. Tests will be at the Contractor's expense if the refurbished components do not meet contract requirements.
1.5 WARRANTY
Warranty provisions of these Specifications shall apply, except that notwithstanding inspection and acceptance, rebabbitted bearing pads and shells shall be warranted to conform to these specifications for three years after receipt and acceptance at delivery site or 8000 hours of unit operation after installation, whichever comes first.
PART 2 PRODUCTS
2.1 BABBITTING MATERIALS
a. The babbitt metal shall be new material conforming to ASTM B 23 Alloy 2.
b. The tin used for tinning shall be 99 percent pure.
c. Use of reclaimed tin or Babbitt will not be acceptable.
d. The Contractor shall submit a Chemical Analysis of Babbitt and Tin material prepared by an independent testing laboratory prior to performing any tinning. The laboratory shall not be associated with the Contractor in any way.
2.2 MATERIAL AND WORKMANSHIP
All materials, parts, and components supplied shall be new and unused and of the best available kind and quality. Workmanship shall be of the highest grade and in accordance with the best modern standard practice.
Samples of materials shall be made available upon request.
2.3 (Optional) Babbitt Bond Reference Block for Ultrasonic Testing
A carbon steel reference block shall be provided for the purpose of field checking Babbitt bond on a bearing shell or shoe with an Ultrasonic Testing NDE (UT) device. The reference block shall include a clearly marked region of sound bond and a region of unbonded Babbitt. The reference block shall include a small wooden box for long term storage and a label.
PART 3 EXECUTION
3.1 Not Used
3.1.1 Not Used
3.1.2 Not Used
3.1.3 Not Used
3.1.4 Not Used
3.2 SHIPMENT
3.2.1 Shipping General
The following general requirements apply:
a. At the Contractor's option, the Contractor may visually inspect the components condition prior to shipment from the site.
b. The Contractor shall provide crates suitable for shipping and long term storage of the turbine guide bearing. The crate design shall include lifting points for an overhead crane and bottom slots for forklift forks.
c. Prior to shipment after refurbishment, coat components with a suitable long term preservative and cover all inlets and outlets to exclude dirt, water, etc.
d. If steel banding is used, it shall have adequate protection so that it does not harm the bearing.
e. All packaging materials used shall become the property of the Government.
3.2.2 Shipment of Turbine Guide Bearing
a. The Contractor shall provide transportation roundtrip for one turbine guide bearing between the project and the refurbishment workshop. Including any necessary tarps or protection to keep the bearing from the environment.
3.3 TURBINE GUIDE BEARING REFURBISHMENT
The refurbishment consists of rebabbitting, including OD spigot fit build up and split flange face refurbishment to restore OEM dimensions.
3.3.1 General Turbine Guide Bearing Refurbishment Requirements
The refurbishment of the turbine guide bearing includes babbitting, refurbishment of the split flange faces and refurbishment of the OD fit(s). General requirements that apply for all refurbishment listed below:
a. The Contractor shall submit a detailed Turbine Guide Bearing Refurbishment Procedure a minimum of 14 calendar days prior to commencing work. The procedure shall include a detailed step-by-step babbitting procedure including tinning method, shell and babbitt temperatures, mandrel design, spin casting speeds, and cooling rates.
The method for establishing the bearing centerline prior to Babbitt final machining shall be provided. The Contractor shall not perform any work until receiving written approval from the Government.
b. A Turbine Guide Bearing As-Received Report shall be submitted 10 calendar days prior to commencing work. The as-received report shall include, at minimum; inner diameter measurements at top, middle, and bottom, outer diameter measurements of both the upper and lower cylindrical fits. The split face stud bolts shall be in place and torqued-up, to 400 ft-lbf for the 1.5 inch stud bolts using SAE 30 motor oil, or an equivalent, to lubricate the threads. Take four measurements on 45-degree increments per elevation.
c. A proposed Schedule for Turbine Bearing Refurbishment, i.e. dates and times, shall be submitted for all phases of the bearing refurbishment a minimum of 10 calendar days in advance of the beginning of the work. The schedule shall be updated and revised as required. The Government will use this schedule for witnessing refurbishment processes and will notify the Contractor as to which process will be witnessed.
d. Build up of the split flange faces and/or O.D. spigot fits to restore original dimensions, shall be performed prior to babbitting.
Finish machining of the built-up faces shall be performed following babbitting, but prior to babbitt finish machining.
e. Runout checks shall be made with the bearing on the machining device.
f. All work shall include appropriate final inspections and the preparation of a report according to paragraph "Inspection of Finished Turbine Guide Bearing / Final Report."
g. Following the completion of the work, the Contractor shall protect the bearing from damage and corrosion with appropriate coatings and packaging for long term storage.
3.3.2 Detailed Turbine Guide Bearing Refurbishment Requirements
a. The existing Babbitt and tinning material shall be removed.
Machine or shot blast to bare metal, including dovetail grooves, and proceed immediately with tinning. Special care shall be taken to protect all holes and surfaces of the bearing not receiving babbitt.
Plug such holes with a heat resistant filler material. Before bolting the split lines together for tinning, place heat resistant material in the joints to prevent leakage.
b. When a dovetail falls on a split line, a mill cut may be taken the length of the joint to remove the dovetail and create a square land parallel to the joint face.
c. The upper and lower OD spigot fits shall be built up by weld overlay using a low heat welding process and an appropriate filler metal, or by the installation of a make-up ring. The filler/makeup material shall be carbon steel. Machining of the existing surface if needed prior to the application of the makeup material is included.
The buildup shall be performed prior to babbitting. See paragraph 3.3.3(b) for additional information.
d. Not Used.
e. A sample of the babbitt shall be taken and marked for identification at the time that the babbitt is poured. A sample shall be taken for each heat. An independent testing laboratory shall analyze each sample with the results included in the final report.
f. The bearing shall be spin cast with the bearing axis horizontal and the Babbitt poured at a high temperature. The bearing shell, and mandrel if used, shall be pre-heated. The pouring shall be continuous. Precautions shall be taken to minimize bearing distortion during babbitting.
g. Finish machining of the built up split faces shall be performed following babbitting, but prior to babbitt finish machining. Finish machined overlaid or sprayed surfaces shall be liquid penetrant examined. The refurbished split faces shall have a minimum 90 percent evenly distributed contact over the vertical height of the mating flanges, which shall be verified using a bluing process. The joints shall be sufficiently tight to assure that a 0.001 inch feeler gauge will not pass through the O.D. or the I.D. of the joint line.
h. Finish machining of the built up spigot fits shall be performed following babbitting, but prior to babbitt finish machining.
Finished machined overlay shall be liquid penetrant examined. The tolerance for the finished machined spigot fits are as follows:
(1) Diameters: The target diameters and tolerances for the upper and lower fits will be the original design dimensions, unless informed otherwise by the Government.
(2) Runout: For each surface, maximum 0.002 inch T.I.R.
(3) Surface finish 63 microinch or better.
i. The centerline of the babbitted bore shall be established from the machined OD spigot fits and flange face mounting surface. If directed by the Government for the purpose of establishing the centerline, a full-face skim cut may be made on both faces of the mounting flange, however, no more than 0.015 inch shall be removed from each face without the Government's approval.
j. The requirements for the finish machined babbitt bore are as follows:
(1) Babbitt Inner Diameter: 33.014 +0.002/-0.000 inch.
(2) Runout: maximum 0.002 inches T.I.R
(3) Concentricity: Concentric with the machined spigot fit OD(s) to within 0.002 inches T.I.R.
(4) Perpendicularity: Perpendicular to the horizontal flange mounting surface to within 0.002 inch.
(5) Surface Finish: maximum 32 microinch, free of chatter and abnormal tool marks.
k. Machine the oil supply grooves and other details to duplicate the original design.
l. Perform NDT of the babbitt bond according to Paragraph 3.5.
m. Surfaces not exposed to direct contact to oil or oil vapors shall be painted in accordance with paragraph "PAINTING TURBINE GUIDE BEARING" All painting shall be accomplished after babbitting. Babbitt, finished machined surfaces, the top and bottom of the bolting flange, threaded holes, and temperature detector holes shall not be painted. These surfaces and holes shall be thoroughly cleaned and coated with a suitable rust resistant compound.
3.3.3 Turbine Bearing Split Flange Face and OD Fit(s) Refurbishment
a. Split Flange Faces. Procedures to repair the split flange face shall be included as part of the Turbine Guide Bearing Refurbishment Procedure. One possibility for refurbishing the split faces is to machine the faces without buildup. Another possibility is to buildup the split faces using a low heat welding process and appropriate filler metal, or by flame spraying. Weld overlay or flame spraying shall be performed prior to babbitting. Finish machining of the overlaid faces shall be performed following babbitting, but prior to babbitt finish machining. The refurbished split faces shall have a minimum 90 percent evenly distributed contact over the vertical height of the mating flanges, which shall be verified using a bluing process. The joints shall be sufficiently tight to assure that a 0.001 inch feeler gauge will not pass through the O.D. or the I.D. of the joint line. The surface finish 63 microinch or better. Finish machined overlaid or sprayed surfaces shall be liquid penetrant examined. Additional requirements are listed under paragraph 3.3.1 above. If the split faces are reworked, the fit of the dowels will be lost. The dowel holes and stud holes shall be re-reamed with the bearing halves together and new mounting studs and dowels shall be provided. The Contractor is responsible to determine the necessary dimensions of the replacement studs and dowels, they shall be made slightly larger as needed to accommodate a dowel equal to or slightly larger than the existing and shall be 1020 steel, as shown on the original drawing. The Contractor shall submit a Dowel Drawing for approval.
b. OD Fit(s).Procedures to repair the OD Fits shall be included as part of the Turbine Guide Bearing Refurbishment Procedure. Refurbishing the fit(s) shall consist of building up the fit OD by a continuous 360 degree weld overlay using a low heat welding process and an appropriate filler metal, or by the installation of a make-up ring. The buildup shall be performed prior to babbitting. Finish machining shall be performed following babbitting, but prior to babbitt finish machining.
Finished machined overlaid surfaces shall be liquid penetrant examined.
The tolerance for the finished machined OD shall be as shown on the original drawings and the total indicated runout no be greater than
0.002 inches and the surface finish 63 microinch or better. Additional requirements are listed under paragraph 3.3.1 above.
c. Weld and non-destructive examination procedures shall be in accordance with paragraphs "WELDING REPAIR OF GUIDE BEARING COMPONENTS" and "BABBITT BOND NDT".
3.3.4 Inspection of Finished Turbine Guide Bearing and Final Report
a. The Contractor shall provide a Notice of Turbine Bearing Finished Inspection to the Government in advance of the final finished inspection and all inspection may be witnessed by the Government at its discretion.
b. The finished turbine guide bearing shall be inspected while on the machining device for the purpose of verifying the dimensional and geometric requirements. When centered on the device, measure the runout of the babbitted bore at the top, middle and bottom of the babbitt. Additionally measure runout in the middle of the upper and lower machined OD spigot fits. Record all dial indicator readings at 45 degree increments.
c. Measure the babbitt bore diameter at three elevations top, middle and bottom. The measurements shall taken be at the same elevations where runout was measured. Take four measurements on 45-degree increments per elevation.The split face stud bolts shall be in place and torqued-up, to 400 ft-lbf using SAE 30 motor oil, or an equivalent, to lubricate the threads.
d. Measure the OD in the middle of the machined spigot fit areas.
Take four measurements at each fit on 45 degree increments.
e. Measure the bearing OD at the mounting flange, mounting flange thickness, bearing height, babbitted height.
f. Measure and record the babbitt and OD spigot fit surface finishes, and the surface finish for any other contractor machined surfaces.
g. The inspection shall include the Paragraph 3.5 NDT of the Babbitt bond.
h. Using feeler gauges, measure the O.D. and I.D. gap at the bearing split lines along the lines entire length. Record any gap 0.001 inch or larger listing width, length and approximate depth.
i. All measurements shall be taken with calibrated instruments accurate to the nearest 0.001 inch, unless otherwise indicated.
Calibration certification for all equipment shall be furnished with the report of findings.
j. All data shall be recorded on the Contractor supplied inspection sheets which shall be provided to the Government inspector prior to departure from the Contractor's facilities.
k. A Turbine Guide Bearing Finished Inspection Report and measurement report including the results of the Babbitt bonding NDT shall be submitted prior to shipment and shipment shall not be made until the authorized in writing by the Government.
3.4 NOT USED
3.5 BABBITT BOND NDT
Babbitt Bond NDT is included as part of the guide bearing refurbishment work.
3.5.1 General
The babbitt to base metal bond shall be examined using the Ultrasonic Test (UT) and Liquid Penetrant (PT) method of nondestructive testing.
The Pulse-Echo Method of UT inspection shall be employed. Examination shall be made from the babbitt side and 100 percent of the babbitted area shall be inspected. UT examination shall be performed in accordance with the applicable portions of ASTM E 114 or of Article 5 of the ASME BPVC SEC V.
The UT procedure which is to be used shall be submitted for approval. The Government at its discretion my witness any and all inspections.
3.5.2 UT Inspectors Qualifications
3.5.2.1 Examination of the Babbitt Bonding
An examination of the babbitt bonding shall be performed by an approved independent testing laboratory that is regularly engaged in nondestructive testing, or it may be performed using Contractor personnel. For examinations performed by Contractor personnel offsite, a representative from an approved independent testing laboratory shall be present during the examination to witness and certify the results. For examinations performed by Contractor personnel on Government property, the Government may request the presence of an independent laboratory at its discretion. The laboratory shall be a member in good standing of the American Council of Independent Laboratories (ACIL). The laboratory shall be mutually agreeable between the Government and the Contractor. Prior to the performance of any tests the laboratory name, location and qualifications shall be submitted as part of a NDT Personnel/Laboratory Qualifications submittal.
3.5.2.2 Technician(s)
Technician(s) performing the inspection shall be certified in accordance with the American Society for Nondestructive Testing (ASNT). The inspector who is performing the UT inspection or who is acting as a representative from an independent testing lab shall, as a minimum, be NDT:ASNT-TC-1A level 2 qualified, with a minimum of 3 years experience at Level 2 in the last 5 years. The inspector's qualifications shall be included with the NDT Personnel/Laboratory Qualifications submittal required above. The inspector shall locate bonded and unbonded areas on the "Reference Blocks" in the presence of the Government's quality assurance representative.
3.5.3 Equipment
a. Search Unit.
(1) All testing of the babbitt bond shall be performed with a
2.25 MHz or 5 MHz longitudinal wave crystal.
(2) Transducer diameter shall be between 0.25 inch and 1 inch.
(3) Transducer gloves or delay lines shall be made of Lucite or other materials with similar sonic properties.
b. Couplants used for testing shall be either lightweight oil or glycerin, the viscosity of which is no more than SAE 30 oil.
c. Reference Blocks.
(1) A reference block shall consist of a soundly babbitted steel block with a scanning surface and babbitt thickness representative of the shoes being tested. The block shall be used to set the sensitivity of the instrument. A reference block with artificially unbonded areas shall be provided for comparison of indications for areas showing bond and lack of bond.
(2) Test sensitivity shall be such that the babbitt-to-base material interface is readily identified on the CRT. Details of sensitivity calibration and determination of bonded and unbonded areas shall be defined in the UT procedure.
(3) Reference blocks shall be kept available for frequent reference during actual testing.
3.5.4 Procedure
The entire babbitt surface of each shoe segment shall be scanned, overlapping scan paths by at least 20 percent of the effective transducer width. Scanning rates shall not exceed 3 inches per second. Unbonded babbitt areas will result in an increase in the size of the reflection or indications of multiple reflections at the interface of the babbitt and base metal. Babbitted areas located over anchoring dovetail grooves will be excluded from UT inspection.
All unbonded babbitted areas shall be carefully scanned to determine their size and configuration. The outside edges of all unbonded areas shall be marked on the surface of the Babbitt and recorded on inspection sheets.
3.5.5 Liquid Penetrant (PT) Testing
a. After the ultrasonic testing is completed all exposed babbitt to backing material bond lines, including dovetails if applicable, shall be examined with the liquid penetrant (PT) method. This shall be done using a solvent-removable visible dye. The purpose of the PT bond line examination is to define the babbitt to backing material bond at edges, which the UT examination may not reveal. The PT method that the Contractor proposes to use shall be submitted for approval and shall be in accordance with ASTM E 165. Lack of bond indications greater than ¾ inches in length shall be marked on the bearing shell or pads and mapped on inspection reports or documented in photos.
b. The surface area of the babbitt, including oil grooves, shall be PT examined for cracks and any and all indicated cracks recorded on inspection sheets or documented in photos.
3.5.6 Acceptance Standards
Babbitt bond acceptance criteria is defined below as a function of zones and the bearing backing material:
a. Perimeter & Holes. Zone defined as bond surface area within 1 inch from any edge or hole having an exposed bond line. The maximum dimension of any individual unbonded area shall be less than 1/2 inch, with acceptable unbonded areas located no closer than 2 inches apart.
The total unbonded area shall be no larger than 5 percent of the total zonal area.
b. Corners. Zone defined as bond surface area within 1 inch from any corner having an exposed bond line. Corners shall have no unbonded areas.
c. Dovetails. Zone defined as the entire surface area over a dovetail. Dovetails are exempt from UT examination.
d. Bond Lines. Defined as exposed lines at the babbitt to base metal interface. PT indications of lack of bond totaling over 10 percent of the length of a particular edge shall be unacceptable. Any PT detected lack of bond over 3/4 inch in length shall be re-examined by the UT method, using a 0.250 inch diameter transducer. Unbonded areas extending more than 1/8 inch away from an edge shall be unacceptable.
e. Remainder of Shell or Pad. Zone defined as bond surface area other than perimeters, holes, corners and dovetails. The maximum area for any individual unbonded area shall be less than 1 sq. inch or 3 percent of the total zonal area, whichever is less. Acceptable unbonded areas shall be located no closer than 2 inches apart. The total unbonded area shall be no larger than 5 percent of the total zonal area.
f. Additional Requirements. Acceptable babbitt surface will have no porosity larger than 1/32-inch. Porosity spacing can be no less than 1/8-inch, and must have no more than five per square inch. The exposed bond line shall have no visible disbonding.
3.5.7 NDT Inspection Report
A babbitt bond NDT inspection report shall be submitted as part of the bearing or pads final report. If the NDT is performed or witnessed by an independent laboratory, the laboratory shall provide a certified written report. The report shall include a complete description of the UT procedures used, equipment used, a mapping of the areas tested, shell/pad number, and interpretation of results. The report shall specifically address areas of lack of bond between the babbitt and the shell/pad and their accumulated total surface area relative to the area allowed for the zone. PT results shall include a mapping of the indications at the bond lines or photos. The report shall also address porosity and any cracking that is found.
3.5.8 Repairs
If repair to the babbitt surface or to the babbitt to backing material interface is needed a repair procedure shall be submitted, if not already submitted as part of the rebabbitting procedure. Puddling will be acceptable for small areas on the surface, and to correct a lack of bond between the babbitt and backing material, however, the total lack of bond repaired by puddling shall not exceed 10% of the total babbitted surface.
3.5.9 Babbitt Bond Acceptance
If a bearing's babbitt bond does not meet the above acceptance criteria it shall be repaired or completely rebabbitted and retested at the Contractor's expense until the level of defects are acceptable in accordance with these specifications.
3.6 PAINTING TURBINE GUIDE BEARING
3.6.1 General
Steel surfaces that are exposed to direct contact of oil or oil vapors shall be prepared and painted in accordance with system No. 21-A-Z. All painting shall be accomplished after babbitting, and the babbitted and finished machined surfaces shall not be exposed to abrasives or paints. Finished mating surfaces, bolting flanges, babbitted surfaces, the finished fits, threaded holes, and temperature detector holes shall not be painted. These surfaces and holes shall be thoroughly cleaned and coated with a suitable rust resistant compound.
3.6.2 System No. 21-A-Z
The epoxy zinc-rich paint shall be applied in two singles half-lapped spray coats to an average dry film thickness of a minimum of 4.0 mils, and a thickness at any point of not less than 2.5 mils or greater than 8.0 mils.
After a drying period of not less than 6 hours nor more than 96 hours, at
W9127819R0060 least two coats of epoxy polyamide paint shall be applied to produce an average dry film thickness totaling 12 mils. If the epoxy zinc-rich paint has been applied in the shop or otherwise has been permitted to cure for longer than 96 hours, it shall be abraded and recoated with an additional thin tack coat of the zinc-rich paint, which in turn shall be overcoated within 96 hours with the first coat of the epoxy polyamide paint. When applying MIL-DTL-24441, the type of thinner, amount of thinning, and required induction time shall be as recommended by the manufacturer. The drying time between non-zinc coats shall not be less than 12 hours nor more than 96 hours.
SYSTEM NO. 21-A-Z
SURFACE
PREPARATION
1st & 2nd COAT 3rd & 4th COAT 5th COAT
White Metal Blast Cleaning SSPC SP 5/NACE No. 1
MIL-DTL-24441/19B MIL-DTL-24441
/21A,alternating with topcoat
MIL-DTL-24441
/22A
(As needed to obtain specified thickness)
PROJECT SPECIFIC INSTRUCTIONS
PROJECT SPECIFIC SUBMISSION INSTRUCTIONS AND REQUIREMENTS
1.0 Introduction. This is a Federal Acquisition Regulation (FAR) Parts 12, 13, 37 and FAR Subpart 13.5, commercial, competitive, Best Value - Tradeoff, source selection in support of the Mobile District. In this source selection, the Government intends to make one (1) award of a Firm Fixed Price contract resulting from this solicitation. Each competing Prime Contractor, hereinafter referred to as the “Offeror”, shall submit a proposal that includes the required submission information found in this Section and FAR Clauses 52.212-1 and 52.212-2, to demonstrate the Offeror’s capabilities to perform the work described in this Request for Proposal (RFP) at a fair and reasonable price. By submission of a proposal, the Offeror accedes to all the terms of this RFP. FAR Clause 52.212-2 outlines the proposal evaluation process, including factors and criteria, and the basis for award. Below are project specific, proposal submittal instructions to the Offeror based on requirements important to this solicitation. The Offeror must follow the instructions and incorporate the requirements into their proposal.
1.1 Who May Submit. Any responsible businesses organized as a prime contractor that is self-certified as a Small Business as defined by the U.S. Small Business Administration.
1.2 Project Description. In general, this project is described in the Scope of Work. Reference the entire Scope of Work, along with all Drawings, and other Clauses and Appendices for the entire scope of effort required.
1.3 Request for Information. Any questions about this solicitation, including technical questions about the Specification, shall be submitted via email to CTHYDRO-PROPOSALS@usace.army.mil, email subject line must reference the solicitation number W91278-19-R-0060. Questions should be submitted no later than 14 May 2019, at 2:00 p.m. Central Standard Time to allow time for a response, and an amendment to the solicitation, if necessary. Oral exchanges between offerors and the Government prior to award of the contract will not be binding. Any information concerning this solicitation will be furnished to all offerors as an amendment to the solicitation if the information is necessary to the submittal of offers.
1.4 Proposal Submission Address and Deadline: Proposals shall be submitted via email to CTHYDRO-PROPOSALS@usace.army.mil, email subject line must reference the solicitation number W91278-19-R-0060. The Government must receive your proposal no later than the time and date specified in Block 8 of the SF1449. Any and all amendments to the solicitation will be issued on a Standard Form 30 (SF30) and shall be acknowledged by completion of Block 15 of the SF30.
1.5 Period for acceptance of offers. Addendum to FAR Clause 52.212-1(c). The offeror agrees to hold the prices in its offer firm for 90 calendar days from the date specified for receipt of offers.
1.6 Electronic Proposal Submission Requirements. Proposals shall be submitted via email to CTHYDRO-PROPOSALS@usace.army.mil, email subject line must reference the solicitation number W91278-19-R-0060. The Government will only accept proposals in the electronic format described below. There should only be a total of four (4) files submitted (3 PDF files and 1 Excel file). Do not password protect files because that is not compatible with the Army Virtual Contracting Enterprise. Any paper copies that are submitted will not be reviewed and will be destroyed.
a. Volume I PAST PERFORMANCE AND TECHNICAL APPROACH
Submit one PDF file.
Electronic versions shall be 8-1/2” x 11” format (Times New Roman, 12 point, single-spaced, 1”margins, one page is one side only).
Electronic versions of spreadsheets and foldouts shall not exceed 11” x 17”.
No Cost Information is to be submitted in Volume I.
b. Volume II COST PROPOSAL
Submit one PDF file and one Excel Workbook.
In the footer of each Excel worksheet, provide date, solicitation number, and company name.
c. Volume III ADMINISTRATIVE REQUIREMENTS
Submit one PDF file.
Electronic versions shall be 8-1/2” x 11” format (Times New Roman, 12 point, single-spaced, 1”margins, one page is one side only).
Electronic versions of spreadsheets and foldouts shall not exceed 11” x 17”.
Each sheet shall include the date, solicitation number, and company name.
1.6.1 To effectively and equitably evaluate proposals, the Government must receive information sufficiently detailed and in the order described below that clearly describe an Offeror's capabilities. It is the responsibility of the Offeror to submit complete proposal information and documents that are fully responsive to the submission requirements of the solicitation. Offerors are responsible for organizing submitted material logically as it relates to the requirements of this solicitation and to number all pages to facilitate evaluation. Materials not organized appropriately and in the sequence of subparagraphs set out below, may easily be overlooked during evaluations, possibly affecting an Offeror’s rating.
2.0 Submission Requirements for Volume I. Submit the requested Past Performance and Technical Approach information in Volume I under the tabs indicated below and number all pages. Note: Do NOT provide any price information in Volume I.
2.1 Factor 1 – Tab A: Past Performance of the Prime Contractor. The contractor noted on the SF1449 and that signs the SF1449 is considered the Prime Contractor and Offeror. The Offeror is to provide its past performance information regarding recent and relevant efforts and the quality of those efforts to demonstrate its accomplishments and capabilities to successfully perform the effort required by this RFP. Past Performance information includes the following:
(a) Relevant Company Effort and (b) Quality of Past Performance.
Where the word "project” and/or “effort(s)" appears in the RFP, it is understood to mean the act of refurbishing one Turbine Guide Bearing including shipment of the bearing from and to Allatoona Powerhouse and the optional refurbishment of a second Turbine Guide Bearing under a single contract. Examples of projects or efforts submitted by an Offeror may be projects performed for a State or Federal Government agency or for a commercial or private sector customer. If the Offeror is submitting projects or efforts performed under a “task order type contract”, each task order shall be considered a separate project. In other words, do not combine tasks order projects and present them as one project.
Where the word “recent” appears it is understood to mean Turbine Guide Bearing refurbishment type project, the contract for which has been completed within 5 years of the RFP issue date.
“Relevant” past performance information is one indicator of an Offeror’s ability to perform the contract successfully. Where the word “relevant” appears it is understood to mean a single project that is similar in terms of scope (dollar value, size, project type, complexity) to the work described in this solicitation. The description of work is found in the Statement of Work.
2.1.1 (a) RELEVANT COMPANY EFFORT. The Offeror shall submit no more than five (5) examples of “recent” and “relevant” projects performed as a prime contractor or subcontractor to demonstrate its accomplishments on contracts similar to the effort required in this solicitation. If the Offeror submits more than five (5) projects, only the first five (5) projects shall be evaluated.
For each “recent” and “relevant” project example, the Offeror shall submit a separate and fully completed Prime Contractor Project Data Sheet (Attachment 3 at the end of this section), or at a minimum, provide the following information:
1) Company Name;
2) Name of Project;
3) Location of Project;
4) Owner (i.e. customer work was completed for);
5) Narrative Description of the General Scope of Project/Contract as it relates to this solicitation;
6) Your Role on this Contract (Prime, Subcontractor, Joint Venture Partner) and the type of effort your company self-performed;
7) Cost for this single contract;
8) Extent and type of work subcontracted out;
9) Contract Award Date (Provide Month and Year); Completion Date: (Provide
Month/Year);
10) Termination or Liquidated Damages Information; Comments regarding any known performance deemed unacceptable to the customer or not in accordance with the contract terms and conditions;
11) Name and contact information of Owner’s point of contact
(b) QUALITY OF PAST PERFORMANCE.
1) The Offeror shall submit evidence of the quality of its past performance on projects submitted in paragraph 2.1.1 (a). The Offeror shall provide a completed contractor performance evaluation, whether interim or final, found in the Past Performance Information Retrieval System (PPIRS) (www.ppirs.gov). If a completed contractor performance evaluation does not exist in PPIRS (i.e., a non-U.S. Government project), the Offeror shall provide a completed Past Performance Questionnaire (PPQ) (Attachment 3 at the end of this section). If, at time of evaluation, a completed contractor performance evaluation exists in PPIRS that conflicts with a submitted PPQ, the completed contractor performance evaluation in PPIRS will govern.
2) Any past performance surveys/assessment/evaluation forms, other than PPIRS or the PPQ Form, are unacceptable submissions by the Offeror to evidence the quality of its past performance and will not be considered or evaluated.
3) Completed PPIRS or PPQs that were submitted in response to previous solicitations may be submitted. However, Offerors shall not incorporate either by reference, and thus must resubmit the PPIRS or PPQ with their proposal. However, this requirement does not preclude the Government, at its discretion, from utilizing previously submitted PPIRS or
PPQ information in the past performance evaluation. Notwithstanding the foregoing, the burden of providing detailed, current, accurate and complete past performance information rests with the Offeror.
4) If an Offeror has been required to take corrective action for any substandard performance, experienced other performance problems such as cost overruns, extended performance periods, numerous warranty calls, etc., the Offeror should explain the circumstances and the corrective actions taken.
5) If a client will only provide completed PPQs directly to the U.S. Army Corps of Engineers, Mobile District, then ensure the client submits the PPQ before the proposal due date using the following electronic mailing address:
laura.r.knight@usace.army.mil Please include the solicitation number in the subject line of the email.
PPQs…
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