Draft Statement of Work.pdf

Statement of Work (SOW)

CONDENSER HEAT EXCHANGER TUBES FOR USS NIMITZ (CVN-68) CLASS HFC-

236FA AIR CONDITIONING (A/C) PLANTS

1.0 INTRODUCTION

1.0.1 The Naval Surface Warfare Center Philadelphia Division (NSWCPD) is a Department of Defense entity responsible for research and development, test and evaluation, engineering and fleet support organization for the Navy’s ships, submarines, military watercraft and unmanned vehicles.

This requirement is for NSWCPD Code 411, which is responsible for Air Conditioning and Refrigeration Plants.

1.1 BACKGROUND

1.1.1 The CVN-68 Class A/C plants produce chilled water (CW) for various cooling applications and are considered mission critical equipment. Each CVN-68 Class A/C plant can produce up to 363 Tons of cooling capacity. There are ten (10) A/C plants per CVN-68 Class aircraft carrier. Additional loads will continue to be added to the CW system over the life of the platform necessitating higher cooling capacities from the ship’s A/C plants. If no additional cooling capacity is provided, eventually ship cooling loads will exceed the A/C plants’ total cooling capacity resulting in higher CW temperatures. Consequently, cooling of mission critical equipment would suffer.

1.1.2 The Navy has considered options for improving total ship cooling capacity and has determined that replacement of existing A/C plant condenser tubes with new, more efficient tubes; increases each A/C plant’s cooling capacity by ~30 Tons thereby increase total ship cooling capacity by ~300 Tons.

1.1.3 The purpose of this effort is to provide the replacement high-efficiency condenser tubes and package them into kits. Each kit will consist of enough tubes to replace an entire tube set on a CVN-68 Class 363-Ton A/C plant condenser.

1.2 SCOPE OF WORK

1.2.1 The contractor shall provide high-efficiency A/C plant condenser tubes. The tubes shall be provided as kits, each kit containing a quantity of 400 condenser tubes. The contractor shall provide 5 condenser tube kits for installation aboard each ship in the CVN-68 Class.

2.0 APPLICABLE DOCUMENTS

2.1 MIL-T-22214B Amendment 1 dated 5 November 1990 – Tube, Condenser and Heat

Exchanger with Integral Fins (UNS Alloy Nos. C71500, C70600, C12200)

2.2 ASTM B-359, dated 1 October 2006 – Standard Specification for Copper and Copper- Alloy Seamless Condenser and Heat Exchanger Tubes with Integral Fins

2.3 MIL-C-3993, dated 14 September 1962 – Copper Base Alloy Mill Products; Packaging Of

The Contractor shall reference and utilize the latest version available when performing tasks within this PWS.

3.0. REQUIREMENTS

3.1 The condenser tubes shall be in accordance with the following requirements:

3.1.1 Specification: MIL-T-22214B Amendment 1 dated 5 November 1990.

Exceptions:

1) Cleaning as specified in paragraph 3.8 is not required.

2) A “heat identification” (HID) process as specified in paragraph 4.2.2 is not required.

3) Destructive testing as specified in paragraph 4.2.4 is not required.

3.1.2 Number of fins per inch: 40.

3.1.3 Height of fin: 0.056 inches.

3.1.4 Size required: outside diameter = 0.75 inches; nominal wall thickness = 0.058 inches

3.1.5 Minimum wall thickness under fins: 0.049 inches.

3.1.6 Minimum wall thickness under plain ends: 0.065 inches.

3.1.7 Material: Copper Alloy C71500 in accordance with MIL-T-22214B; Class B – Noncritical application; Temper: As-finned.

3.1.8 Overall Tube Length: 156-23/32 inches (+1/8/-0 inches)

3.1.9 Plain Ends: 2 inches (+1/2/-0 inches)

3.1.10 Tubes shall be continuously finned between plain ends (no lands).

3.2 In addition to the air pressure test required by MIL-T-22214B paragraph 4.3.2.2, the contractor shall perform eddy current inspection on each tube in accordance with ASTM B-359. Any tubes that fail either test shall be rejected. Note: hydrostatic testing in accordance with MIL-T-22214B paragraph 4.3.3.1 is not required.

3.3 The contractor shall provide a Certification of Quality Compliance with each kit delivery certifying that all included tubes meet the requirements herein. (See Deliverable 4.1 below.)

3.4 The kits shall be packaged, packed and marked to Level A requirements in accordance with

MIL-C-3993C. Each kit shall consist of multiple crates. Each crate shall have no more than 200 tubes per crate.

3.2 Delivery. The contractor shall deliver the kits within 20 weeks of Delivery Order execution. The delivery address will be specified in each Delivery Order, as it will be based on ship location.

3.3 The contractor shall submit one (1) copy of each Shipping Document or DD Form 250 to the Government for each shipment or partial shipment of hardware.

3.4 The contractor shall provide a monthly progress report, which shall briefly describe the work performed during each reporting period together with significant results thereof.

This report shall describe any problems encountered and propose solutions for their resolution. The report shall also provide the technical status of the effort, and contain a brief outline of the work envisioned for the ensuing reporting period. (See Deliverable

4.2 below.)

4.0 DATA REQUIREMENTS

4.1 Certification/Data Report (CDRL A001)

The contractor shall provide a Certification of Quality Compliance with each kit delivery certifying that all included tubes meet the requirements herein.

4.2 Progress, Status & Management Report (CDRL A002)

The contractor shall provide a monthly progress report, which shall briefly describe the work performed during each reporting period together with significant results thereof. This report shall describe any problems encountered and propose solutions for their resolution. The report shall also provide the technical status of the effort, and contain a brief outline of the work envisioned for the ensuing reporting period.

5.0 PLACE OF PERFORMANCE

All work is to be performed at the Contractor’s facility.

6.0 ORDERING PERIOD AND PERIOD OF PERFORMANCE

The Ordering Period for this contract will be from the Date of Award through 60 months after the Date of Award.

The Period of Performance for this contract will be from the Date of Award through 72 months after the Date of Award.

7.0 SPECIAL REQUIREMENTS

7.1 The Contractor shall maintain a Quality Management System (QMS) in accordance with ASQ/ANSI/ISO 9001:2015 standards per Naval Sea Systems Command (NAVSEA) QMS Acceptance Authority or appropriate directorate requirements.

8.0 COUNTERFEIT MATERIAL PREVENTION

8.1 Non-Electronic Materiels

Department of the Navy contractors (and their subcontractors at all tiers) who obtain critical or high risk materiel shall implement a risk mitigation process as follows:

• If the materiel is currently in production or currently available, solicitations shall require the materiel to be obtained only from authorized suppliers.

• If the materiel is not in production or currently available from authorized suppliers, solicitations shall require the materiel to be obtained from suppliers that meet appropriate counterfeit avoidance criteria.

• Require the contractor to notify the contracting officer when critical or high risk materiel cannot be obtained from an authorized supplier.

• Require the contractor to take mitigating actions to authenticate the materiel if purchased from an unauthorized supplier.

• Require the contractor to report instances of counterfeit and suspect counterfeit materiel to the contracting officer and the GIDEP as soon as the contractor becomes aware of the issue.