CGC sequoia shaft seal installation

This is a combined synopsis/solicitation for commercial items, prepared in accordance with the format in subpart 12.6 of the FAR and as supplemented with additional information included in this notice. This announcement constitutes only solicitation; quotes are being requested and a separate written solicitation will not be issued.

Solicitation number 70Z04023Q60119Y00 applies and is used as a Request for Quote (RFQ). This solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular 2005-87, effective, 7 March 2016. It is anticipated that a competitive price purchase order shall be awarded as a result of this synopsis/solicitation. All responsible sources may submit a quotation, which if timely received, shall be considered by this agency.

The U.S. Coast Guard, Surface Forces Logistics Center (SFLC) intends to award a Firm Fixed Price Purchase Order. No down payments or advanced payments will be made to the awarded vendor. Vendor shall ensure they can secure funding for this order until delivered and received by the US Coast Guard. Payment will be made by Government Purchase order (Net 30) and the vendor shall assume financial responsibility until the order is accepted and received by US Coast Guard. Payment of the work is authorized to be submitted as work is completed but must be approved by the Contracting Officer First.

Basis for Award: This solicitation is based on FAR 13 – Simplified Acquisition Procedures and quotes will be reviewed and awarded on a Lowest Priced Technically Acceptable basis per the solicitation.  Past performance will only be reviewed for “responsibility” basis per FAR 9.1. There are no adjectival ratings nor will award be based on a best value tradeoff basis. All quote’s will be evaluated for who meets all the technical requirements, next who meets our deadlines and finally what is the lowest cost.

All quotes shall be emailed to TYRONE.W.JOHNSON@USCG.MIL and shall be received no later than 08/31/2023 0800 (Eastern). All emailed quotes shall have 70Z04023Q60118Y00 in the subject of the email.

If a Site Visit is required in order to bid, please email JAMES JOHNSTON (410) 636-3095 James.C.Johnston@uscg.mil in order to schedule.

ITEM 1:  BUILD ASSEMBLE TEST SHAFT SEAL

DESCRIPTION: Contractor shall provide on-site tech rep services for the CGC Sequoia located at the USCG Yard in Baltimore Maryland 21226 on or around 11/20/23. POC: James, Johnston

Intent. Contractor to renew the inflatable seal and to inspect, overhaul, and adjust the mechanical seal. The propulsion shaft seal is an inboard 18.000-inch Type MB Seal manufactured by Wartsila-Lips.

Contractor shall provide the services of a qualified Tech Rep, who is familiar with the GFE, provide shaft seal system equipment/system system/equipment, to do the following, on site:

Advise on manufacturer's proprietary information pertinent to the system.

Assist with proper repair methods and ensure compliance with manufacturer's procedures and standards during inspection, repair, modification, calibration, and reassembly of the equipment/system. Ensure compliance with manufacturer's procedures and standards during inspection, and reassembly of the shaft seals.

Ensure that the Tech Rep has a résumé of demonstrated experience with the system/equipment stated above.

 Submit a copy of the Tech Rep’s résumé and a list of references to the COR.

The Tech Rep will bring vulcanizing equipment to install the inflatable seal.

Major Overhaul Kit. The Major Overhaul Kit provided as GFP (Part # JCL00169-00 Rev C.) consists of the following components:

TABLE 1 - 225’, MAJOR OVERHAUL KIT LINE #

DESCRIPTION

PART NUMBER

QTY

UOI

1.

Adapter Ring Bolts

H72579-01-1-3

18

ea

2.

Inflatable Seal

H72579-01-1-5

1

ea

3.

Main clamp Ring Butt Bolt

H72579-01-2-2

6

ea

4.

Main clamp Ring Nut

H72579-01-2-3

6

ea

5.

Support Spring Assy

H72579-01-3-1

1

ea

6.

Interlayer

H72579-01-3-2

1

ea

7.

Bridging Spring Assy

H72579-01-3-3

1

ea

8.

Backing Spring Assy

H72579-01-3-4

1

ea

9.

Spalsh Guard (rubber)

H72579-01-4-2

1

ea

10.

Face Insert (split) - Manetex 22

H72579-01-6-1

1

ea

11.

Face Sealing Strip

H72579-01-6-2

1

ea

12.

Seat Butt Bolts

H72579-01-7-2

4

ea

13.

Seat Dowel

H72579-01-7-3

2

ea

14.

Seat Spring Pins

H72579-01-7-4

2

ea

15.

O-cord, seal

H72579-01-7-5

2

ea

16.

Drive Clamp Butt Bolt

H72579-01-8-2

2

ea

17.

Drive Screw

H72579-01-8-3

2

ea

18.

Drive Alignment Bolt

H72579-01-8-4

2

ea

19.

Drive Screw Nut

H72579-01-8-5

6

ea

20.

Drive Clamp Shaft Screw

H72579-01-8-6

4

ea

21

Compression Tool Assy

H72579-01-CT

1

ea

Seal Reassembly.

Seal Parts Preparation – The Contractor shall unpack and disassemble the seal parts in accordance with CG Tech Pub 3524-243-A.

The Contractor shall prepare the shaft liner and mounting flange in accordance with CG Tech Pub 3524-243-A.

Seal Installation – Technical Representative, the Contractor shall install the inflatable seal in accordance with Chapter 4 of CG Tech Pub 3524-243-A. Ensure that all bolts are torqued correctly in accordance with the manufacturer’s instructions.

Seal Assembly – The Contractor shall assemble the seal in accordance with Chapter 4 of CG Tech Pub 3524-243-A. Ensure that inflatable seal cavity and all butt joints are clean and butted smoothly together.

Face Carrier Assembly – The Contractor shall assemble the face carrier in accordance with Chapter 4 of CG Tech Pub 3524-243-A. Ensure that butts of face carrier are clean, butted smoothly together, and free of nicks and burrs.

Bellows Assembly – The Contractor shall assemble the bellows in accordance with Chapter 4 of CG Tech Pub 3524-243-A.

Face Insert Installation – The Contractor shall install the face insert in accordance with Chapter 4 and 7.2 (c) of CG Tech Pub 3524-243-A. Renew and/or machine parts in accordance with the guidance in the technical manual.

The Contractor shall reassemble the seal in accordance with Chapters 4 and 7.2 (c) in CG Tech Pub 3524-243-A. As necessary, install new parts in accordance with the manufacturer’s instructions using the materials in the Government Furnished seal replacement kits. Machine the seat face in accordance with paragraph 7.2 (c) in CG Tech Pub 3524-243-A. Verify the proposed maximum cut with the CG Inspector prior to machining. Stow unused new parts as directed by the CG Inspector.

Setting Seal Compression – The Contractor shall, in the presence of the Coast Guard Inspector, set seal compression in accordance with Chapter 4 in CG Tech Pub 3524-243-A.

Checking Seal Alignment – The Contractor shall check seal alignment in accordance with Chapters 4.1 (k) and 7.2 (c) in CG Tech Pub 3524-243-A. Reassemble the seal upon completion of work.

Attach a dial indicator to indicate the relative misalignment between the seat and the stationary face insert as the shaft rotates. The face of the seat, the aft side of the face carrier, or the flat side of the forward main clamp ring near the butt joint may be used as the indicator reference surface.

Engage the turning gear to rotate the shaft.

Adjust the alignment bolts and drive bolts to have a total indicator reading of 0.002” or less while the shaft is rotating. Take readings for three complete revolutions of the shaft.

Once the alignment is complete, lock the alignment bolts with their locking nuts. Recheck the alignment after locking. Disengage the turning gear and install the splash guard when work is complete

The Contractor shall upon completion of all work, perform the Inflatable Seal testing and Operational Seal testing required in paragraphs 3.10 and 3.12 below.

Ensure that the seal and seawater cooling system are aligned and strain free.

Inflatable Seal Testing. Submit CFRs with results of below tests.

Stern Tube Seal Leakage Test – The Contractor shall pressurize the stern tube seal with clean fresh water through the flanged connections at the bottom of the mounting ring to 20 psig. Inspect and correct for any leakage.

Pressure Drop Test – The Contractor shall perform the inflatable seal pressure drop test on the inflatable seal in accordance with Chapters 4.2 and 6 in CG Tech Pub 3524-243-A 

Pressurize the inflatable seal to 60 psig using compressed air. Visually inspect to ensure that all piping joints are tight.

Inflate the seal to 75-90 psig, shut off all air valves, and monitor the air leakage. The air pressure shall not drop more than 5 psig in 15 minutes. Correct any deficiencies noted.

The sealing pressure for this cutter class is less than 40 psig.

Water Leakage Test – The Contractor shall, when the cutter is waterborne, perform the inflatable seal water leakage test on the inflatable seal in accordance with Chapters 4.2 and 6 in CG Tech Pub 3524-243-A.

with the shaft stopped and locked into position, inflate the seal to its normal air pressure. Slowly open the seal drain valve and drain the seal cavity.

Measure the seal leakage. If the leakage exceeds one pint per minute, take the necessary corrective actions.

Upon completion, align the seawater cooling lines and return the shaft to normal operation

The Contractor shall inspect and test all components in the presence of the Coast Guard Inspector. Turn over or dispose of unused parts and replaced parts as directed by the CG Inspector.

In the presence of the Coast Guard Inspector, The Contractor shall restore all affected equipment and systems to their normal operating condition after satisfactory completion of testing.

Contractor shall provide a copy of the EOP plackard per drawing WLB-225-567-001 and post per drawing WLB-225-567-001.

Operational test – post repairs. After completion of work, the Contractor shall witness an operational test (by Coast Guard personnel) of the shaft seals to prove that they are in satisfactory operating condition. Submit a CFR.

Observe the seal under operating condition. Ensure that there is no excessive heat, excessive leakage (more than 4 quarts per hour), or excessive vibration (more than 0.005” TIR). Also, ensure that there is no visible run-out of the bellows. Check the alignment of the seal seawater cooling piping to ensure there is no undue strain.

In the event of any of the above conditions, use the Technical Representative and CG Tech Pub 3524-243-A for troubleshooting. The seal shall perform normally in accordance with the CG Tech Pub after overhaul and renewal

Total:

UEIN:                    NAICS code:

Place of Performance:

               U.S. COAST GUARD YARD

               ATTN: CGC Sequoia

               2401 HAWKINS POINT ROAD

               BALTIMORE, MD 21226

Invoicing In IPP

It is now a requirement that all invoicing for Purchase Orders will now be entered and processed through https://www.ipp.gov.