statement_of_work_rev1.docx

STATEMENT OF WORK

1. SCOPE

1.1. To replace existing temporary reactor compartment ventilation systems with a new design. Portsmouth Naval Shipyard (PNSY) has selected a blower model which exceeds the flow/static pressure ratings of our existing system. Current funding allows for purchase of three systems. Request a bid for an additional four systems in the future.

2. REQUIREMENTS: The design drawing provided is mainly for reference purposes and may be modified as necessary by the manufacturer (e.g., the blower may be oriented as necessary; the electrical equipment may be positioned in a different location, etc.). The intent is to have a compact, yet easily serviceable unit which is capable of being lifted via crane and forklift. Numbers in the drawing refer to corresponding numbers below (2.1 refers to 1 etc.)

2.1. Pressure Blower: (New York Blower #1908A10) 10hp, New York Blower Company, Premium Efficiency Motor, Arrangement 4, Direct Drive. Must meet AMCA type B specifications, and have a flanged inlet. Mounted with vibration dampers. Vertical Discharge. Blower must be capable of being removed with minimal disassembly of nearby components.

2.2. Exhaust Stack: Diameter of 8”. Height should be able to accommodate the placement of the Sampling Nozzle Mount (sampling mount should be placed 7-8 duct diameters above the outlet of blower exhaust, give nozzle mount about 6 inches of room from the top flange). Refer to the attached Figure 1 for exhaust stack drawing.

2.3. Sampling Nozzle Mount: Refer to the attached Figure 2 to see dimensions. Welded to exhaust stack, at least 7-8 duct diameters above the blower outlet. Must go beneath the flow measurement station. Sampling nozzle mount is used to attach shipyard furnished equipment.

2.4. Flow Measurement Station: Located on exhaust stack, should be a similar model to the Dwyer STRA circular, 8” diameter, flanged Airflow Measurement Station. See the attached Figure 3 below for details. Shipyard will provide tubing/gauges to use with the flow measurement station. Placement of the flow measurement station must conform to the guidelines provided by the manufacturer. http://www.dwyer-inst.com/Product/AirQuality/FlowSensors/SeriesSTRA

2.5. Cover: Some means to prevent rain water intrusion is needed for the exhaust stack.

2.6. VFD: The adjustable frequency drive indicated in the electrical parts spreadsheet (line #3) must be an oversized enclosure. It should be mounted to the Structure in a way that is equivalent to the diagram attached.

2.7. Fork Lift Slots: Standard

2.8. System Flow Pressure Switch: (not shown) Pressure switch will provide indication of blower operation by sensing static pressure inside the ductwork generated from the blower. Dwyer Model 1910-1 or equivalent (see electrical parts spreadsheet). Provide taps for pressure sensor tubing as necessary.

2.9. Pad-eyes: Shall be constructed with a safety factor of 10 based on the total weight of the assembled design.

2.9.1. The Designer of the integral lifting attachments (ILAs) shall be a Qualified Engineer

2.9.2. All calculations shall be reviewed by a Qualified Engineer other than the Designer.

2.9.3. Any welds shall be designed per American Welding Society (AWS) Specification D1.1

2.9.4. The total weight (empty and full, if applicable) of the Unit shall be permanently marked on each side of the Unit with 2-inch high lettering (or larger) with a contrasting color from the Unit (yellow unacceptable).

2.9.5. Each ILA shall be permanently identified with its Working Load Limit (WLL), [e.g., WLL=10,000 LB] by stamping, etching or by placing on a permanently attached label plate.

2.9.6. Design lifting attachments to accept standard rigging hardware or handling equipment (ASME B30.26 equipment).

2.10. Joints: Joints shall be bolted/gasketed. Rubber gaskets shall be 0.25” thick.

2.11. Framework: Frame shall be painted steel.

2.12. HEPA Filter: A skid designed with standard forklift slots, painted steel frame, pad-eyes consistent with blower framework, a flanders BF series filter housing BF1-1H1W-2GGF-304-D3 (one 24x24x11 ½ HEPA filter and one 2” pre-fliter) with upstream and downstream sample ports and injection ports. Each side of the housing shall have an outward turned bolting flange. Skids must be able to be stacked at least two high safely. Differential pressure ports for the pre-filter and the HEPA filter shall be included and filter DP gages connected (see item 2.14). A back flow damper shall be provided on the downstream portion of the filter housing to prevent any back flow through the filter. Damper shall close automatically on its own when there is no flow through the system.

2.13. Filter DP Gages: DP gages are to be Dwyer Series 2000 gages. The HEPA filter gage shall be a 0-10” w.c and pre-filter shall be a 0-2” w.c gage. All hardware for DP gages and connections are to be stainless steel.

2.14. Electrical: The desired electrical schematic and parts are on separate sheets. There are hyperlinks in a provided spreadsheet to different websites showing the parts for the electrical portions of the system. These parts are a reference to go by and the parts may not be any equivalents or substitutions. Any vendor for any of the parts specified may be used.

3. RESPONSIBILITITES

3.1. Government

3.1.1. Will complete a review of construction drawings prior to manufacturing of system.

3.2. Contractor

3.2.1. Meet or exceed all specifications in their entirety and provide any applicable freight services to Building 178, Portsmouth Naval Shipyard, Kittery, ME 03904.

3.2.2. Provide construction drawings for review.

3.3. Operator / Maintenance Manuals - Documentation will be located within a water proof case affixed to each machine. Minimally, the documentation shall consist of:

3.3.1.1. Technical Instructions (TIs) such as an Operations & Maintenance Manual, Controls Manual, and/or Electrical Manual with Schematics

3.3.1.2. Lifting & Handling the equipment with its padeye(s) Certification

3.3.1.3. Equipment Data Sheet (EDS)

3.3.1.4. Operating Instructions, if not in the TIs

3.3.1.5. Points of contact with telephone numbers for requesting emergency repair regardless of the time or type of day

4. DELIVERY / RETURN

4.1. Delivery - The machinery shall be in a, fully-assembled, ready-to-use, and in a first-class-operating condition. Machines shall be functionally tested to include performance of the entire system prior to its delivery. It is incumbent and the responsibility of the Contractor to either confirm or coordinate the date and time of delivery prior to each shipment via the Point-of-Contact (POC) as designated on the Contract and/or the Contracting Officer's Representative (COR). The Government can provide forklift services for removing machinery from Vendor’s transport during work hours. Documentation with Shipyard copies shall accompany each delivery.

4.2. Security - To be allowed onto a government Shipyard, personnel must be US citizens and in possession of appropriate personal identification. Proof of US citizenship may be necessary and can be required for access to the drydock. Allowable documentation of US citizenship is an official government issued Certificate of Birth or Naturalization (w/ raised seal & not a photocopy) or a US passport (can be expired). Vehicular access requires a non-expired personal Driver’s License and appropriate vehicle identification or registration. The transport vehicle must have the company’s name / logo prominently displayed. To gain access to the drydock environs, personnel must be escorted and possess / wear their own personal safety gear.

4.3. Inspection Criteria (Attachment 1)

4.4. Packaging and Marking - Shipments shall be marked in accordance with ASTM-D-3951. Equipment shall be packed for shipment in such a manner to insure acceptance by common carrier and safe delivery to destination. The use of shredded paper, whether newspaper, office scrap, computer sheets, or wax paper, in packing materials for shipment to Navy activities, is prohibited.

4.5. Final Acceptance - Upon satisfactory completion of inspection and test of the equipment, the authorized Government Representative (Portsmouth Naval Shipyard, Code 990 Equipment Manager) will sign and forward the acceptance document(s) to Code 270.3 Production Control for completion. Unloading of equipment from Vendor’s transport does not signify acceptance.

5. GENERAL

5.1. Response to Request - As part of the response to this request, descriptive literature shall be furnished in sufficient detail to show that the proposed design will meet these specifications. Vendor submittals shall include brochures of the model being submitted, assembly sketches with critical dimensions, sketches (with dimensions) of all tooling being provided, statements of compliance with specification, and performance statements with special instructions. Supporting information shall be organized and packaged by unit. If supporting information includes multiple models the vendor shall clearly state model number of proposed unit and redact all information not applicable to proposed unit.

5.2. Approved Models – See section 2 Requirements and attached electrical drawings/material list.

5.3. Source Selection Criteria – The Contractor selected to perform this work shall have proven previous experience manufacturing ventilation system skids.

Temporary Reactor Compartment Ventilation System

5.4. Shipyard Point of Contact - The point of contact for this system will be Jason Sanborn, 207-438-5685 and Eric Bonin, 207-438-5535.

Spec #:

Rev: Page 2 of 7

Portsmouth Naval Shipyard Shipboard Ventilation Blower Replacement Design

Figure 1: Sampling Nozzle Mount

Figure 2:

Figure 3: Airflow Measurement Station image1.JPG image2.PNG image3.PNG image4.png